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High Strain Rate Superplasticity of WE54 Mg Alloy after Severe Friction Stir Processing. METALS 2020. [DOI: 10.3390/met10121573] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Friction stir processing (FSP) was used on coarse-grained WE54 magnesium alloy plates of as-received material. These were subjected to FSP under two different cooling conditions, refrigerated and non-refrigerated, and different severe processing conditions characterized by low rotation rate and high traverse speed. After FSP, ultrafine equiaxed grains and refinement of the coarse precipitates were observed. The processed materials exhibited high resistance at room temperature and excellent superplasticity at the high strain rate of 10−2 s−1 and temperatures between 300 and 400 °C. Maximum tensile superplastic elongation of 726% was achieved at 400 °C. Beyond 400 °C, a noticeable loss of superplastic response occurred due to a loss of thermal stability of the grain size. Grain boundary sliding is the operative deformation mechanism that can explain the high-temperature flow behavior of the ultrafine grained FSP-WE54 alloy, showing increasing superplasticity with increasing processing severity.
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Abstract
Tensile testing is widely used for the mechanical characterization of materials subjected to superplastic deformation. At the same time, it is known that the obtained flow data are affected by specimen geometry. Thus, they characterize the specimen rather than the material. This work provides the numerical analysis aimed to study how the material flow behavior affects the results of tensile tests. The simulations were performed by the finite element method in Abaqus software, utilizing user-defined procedures for calculation of forces acting on the crossheads. The accuracy of tensile testing is evaluated by the difference between the input material flow behavior specified in the simulations and the output one, obtained by the standard ASTM E2448 procedure based on the predicted forces. The results revealed that the accuracy of the superplastic tensile test is affected by the material properties. Even if the material flow behavior follows the Backofen power law, which is invariant for the effective strain, the output stress–strain curves demonstrate significant strain hardening and softening effects. The relation between the basic superplastic characteristics and the tensile test errors is described and analyzed.
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3
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Using High-Pressure Torsion to Achieve Superplasticity in an AZ91 Magnesium Alloy. METALS 2020. [DOI: 10.3390/met10050681] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An AZ91 magnesium alloy (Mg-9%, Al-1% Zn) was processed by high-pressure torsion (HPT) after solution-heat treatment. Tensile tests were carried out at 423, 523, and 623 K in the strain rate range of 10−5−10−1 s−1 to evaluate the occurrence of superplasticity. Results showed that HPT processing refined the grain structure in the alloy, and grain sizes smaller than 10 µm were retained up to 623 K. Superplastic elongations were observed at low strain rates at 423 K and at all strain rates at 523 K. An examination of the experiment data showed good agreement with the theoretical prediction for grain-boundary sliding, the rate-controlling mechanism for superplasticity. Elongations in the range of 300–400% were observed at 623 K, attributed to a combination of grain-boundary-sliding and dislocation-climb mechanisms.
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Zhang X, Ye H, Huang JC, Liu T, Lin P, Wu Y, Tsai M, Liao Y, Jang JSC. Nano-Scaled Creep Response of TiAlV Low Density Medium Entropy Alloy at Elevated Temperatures. MATERIALS (BASEL, SWITZERLAND) 2019; 13:E36. [PMID: 31861768 PMCID: PMC6982153 DOI: 10.3390/ma13010036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 11/25/2022]
Abstract
A low density, medium entropy alloy (LD-MEA) Ti33Al33V34 (4.44 g/cm3) was successfully developed. The microstructure was found to be composed of a disordered body-centered-cubic (BCC) matrix and minor ordered B2 precipitates based on transmission electron microscopy characterization. Equilibrium and non-equilibrium modeling, simulated using the Calphad approach, were applied to predict the phase constituent. Creep behavior of {110} grains at elevated temperatures was investigated by nanoindentation and the results were compared with Cantor alloy and Ti-6Al-4V alloy. Dislocation creep was found to be the dominant mechanism. The decreasing trend of hardness in {110} grains of BCC TiAlV is different from that in {111} grains of face-centered-cubic (FCC) Cantor alloy due to the different temperature-dependence of Peierls stress in these two lattice structures. The activation energy value of {110} grains was lower than that of {111} grains in FCC Cantor alloy because of the denser atomic stacking in FCC alloys. Compared with conventional Ti-6Al-4V alloy, TiAlV possesses considerably higher hardness and specific strength (63% higher), 83% lower creep displacement at room temperature, and 50% lower creep strain rate over the temperature range from 500 to 600 °C under the similar 1150 MPa stress, indicating a promising substitution for Ti-6Al-4V alloy as structural materials.
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Affiliation(s)
- Xiangkai Zhang
- Department of Materials Science & Engineering, Hong Kong Institute for Advanced Study, City University of Hong Kong, Kowloon, Hong Kong;
| | - Hanting Ye
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (H.Y.); (T.L.); (P.L.); (Y.W.); (M.T.)
| | - Jacob C. Huang
- Department of Materials Science & Engineering, Hong Kong Institute for Advanced Study, City University of Hong Kong, Kowloon, Hong Kong;
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (H.Y.); (T.L.); (P.L.); (Y.W.); (M.T.)
| | - Taiyou Liu
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (H.Y.); (T.L.); (P.L.); (Y.W.); (M.T.)
| | - Pinhung Lin
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (H.Y.); (T.L.); (P.L.); (Y.W.); (M.T.)
| | - Yaocheng Wu
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (H.Y.); (T.L.); (P.L.); (Y.W.); (M.T.)
| | - Mintsang Tsai
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (H.Y.); (T.L.); (P.L.); (Y.W.); (M.T.)
| | - Yuchin Liao
- Department of Mechanical Engineering, Institute of Materials Science and Engineering, National Central University, Chung-Li 32001, Taiwan; (Y.L.); (J.S.C.J.)
| | - Jason S. C. Jang
- Department of Mechanical Engineering, Institute of Materials Science and Engineering, National Central University, Chung-Li 32001, Taiwan; (Y.L.); (J.S.C.J.)
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Yin S, Zhang Z, Yu J, Zhao Z, Liu M, Bao L, Jia Z, Cui J, Wang P. Achieving excellent superplasticity of Mg-7Zn-5Gd-0.6Zr alloy at low temperature regime. Sci Rep 2019; 9:4365. [PMID: 30867435 PMCID: PMC6416469 DOI: 10.1038/s41598-018-38420-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 12/19/2018] [Indexed: 11/09/2022] Open
Abstract
Mg-7Zn-5Gd-0.6Zr (wt%) alloy strengthened with quasicrystal phase (I-Mg3Zn6Gd phase) is prepared through hot extrusion and subsequent heat treatments. The low temperature (range from 25 °C to 250 °C) superplastic deformation behavior of the as-extruded, aging treated (T5) and solution and aging treated (T6) alloys are investigated. The results reveal that a superior superplastic elongation of 863% is obtained at 250 °C and strain rate of 1.67 × 10-3 s-1 and the elongation of this alloy increases with the increasing tensile temperature. Detailed microstructural analyses show that I-Mg3Zn6Gd phase and W-Mg3Gd2Zn3 phase are crushed into small particles during extrusion. A high density of nanoscale I-phase precipitates after T5 treatment. Dynamic recrystallization occurs in as-extruded Mg-7Zn-5Gd-0.6Zr alloy. The T5-treated Mg-7Zn-5Gd-0.6Zr alloy shows a relatively weak basal texture intensity, a large number fraction of high angle boundaries and a very finer grain structure (3.01 μm). During superplastic deformation, the nanoscale I-phase is slightly elongated and the microstructure is still equiaxed grains. The superplastic mechanism of the alloy is grain boundary sliding (GBS) accommodated by dislocation movement and static recrystallization. The cavity nucleation at the nanoscale I-phase/α-Mg matrix boundaries or grain boundaries and the cavity stringer formation leads to final fracture.
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Affiliation(s)
- Siqi Yin
- Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang, 110819, China.,College of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Zhiqiang Zhang
- Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang, 110819, China. .,College of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China.
| | - Jiamin Yu
- School of Materials, University of Manchester, Sackville Street, Manchester, M13 9PL, UK
| | - Zilong Zhao
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Min Liu
- Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang, 110819, China.,College of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Lei Bao
- Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang, 110819, China.,College of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Zheng Jia
- College of Mechanical Engineering, Shenyang University, Shenyang, 110044, China
| | - Jianzhong Cui
- Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang, 110819, China.,College of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Ping Wang
- Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang, 110819, China.,College of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
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Majidi O, Jahazi M, Bombardier N. Characterization of mechanical properties and formability of a superplastic Al-Mg alloy. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1742-6596/1063/1/012165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Maier V, Leitner A, Pippan R, Kiener D. Thermally Activated Deformation Behavior of ufg-Au: Environmental Issues During Long-Term and High-Temperature Nanoindentation Testing. JOM (WARRENDALE, PA. : 1989) 2015; 67:2934-2944. [PMID: 26640353 PMCID: PMC4659843 DOI: 10.1007/s11837-015-1638-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 09/02/2015] [Indexed: 06/05/2023]
Abstract
For testing time-dependent material properties by nanoindentation, in particular for long-term creep or relaxation experiments, thermal drift influences on the displacement signal are of prime concern. To address this at room and elevated temperatures, we tested fused quartz at various contact depths at room temperature and ultra-fine grained (ufg) Au at various temperatures. We found that the raw data for fused quartz are strongly affected by thermal drift, but corrected by use of dynamic stiffness measurements all the datasets collapse. The situation for the ufg Au shows again that the data are only useful with drift correction, but with this applied it turns out that there is a significant change of elastic and plastic properties when exceeding 200°C, which is also reflected by an increasing strain rate sensitivity.
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Affiliation(s)
- Verena Maier
- />Erich-Schmid-Institute for Materials Science, Austrian Academy of Sciences, Jahnstr. 12, 8700 Leoben, Austria
| | - Alexander Leitner
- />Department Materials Physics, Montanuniversität Leoben, Jahnstr. 12, 8700 Leoben, Austria
- />Materials Center Leoben, Rosenegger Str. 12, 8700 Leoben, Austria
| | - Reinhard Pippan
- />Erich-Schmid-Institute for Materials Science, Austrian Academy of Sciences, Jahnstr. 12, 8700 Leoben, Austria
| | - Daniel Kiener
- />Department Materials Physics, Montanuniversität Leoben, Jahnstr. 12, 8700 Leoben, Austria
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Wang CT, Langdon TG. Strain weakening and superplasticity in a Bi-Sn eutectic alloy processed by high-pressure torsion. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1757-899x/63/1/012107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Abstract
The aim of the present investigation was to determine and to compare the superplastic behaviour of the AA5083 (Al-Mg-Mn) alloy with Sc and Zr additions. The investigated alloys were processed to form sheets by conventional hot and cold rolling. The superplastic properties were determined with strain rates in the range of 1x10-4to 5x10-2s-1and forming temperatures of 350 to 550°C. The results showed that the alloy with about 0.4% Sc exhibited a high superplastic ductility across a wide temperature range and strain rates up to 1x10-2s-1. The highest elongations to failure of about 2000% were attained at 550°C and at an initial strain rate of 5x10-3s-1. However, the alloy with about 0.15% Zr exhibited elongations up to 600%. The FSP processed Al-4.5Mg alloy with combined addition of about 0.2% Sc and 0.15% Zr exhibited good superplastic properties at higher strain rates (> 1x10-2s-1) with elongations up to 1500%.
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Seto K, Kato T, Abe H. Application of a Continuous Annealing Process to the Production of Superplastic High-Carbon Steels. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-196-99] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTHigh-carbon steels with carbon content of more than 0.8wt% have been known to be superplastic by refining their microstructure. Many methods such as warm rolling have been proposed to refine the microstructure. But most of them are considered to be difficult to use as an actual production method. To make high-carbon steels superplastic and economical, application of a cold rolling and continuous annealing process has been examined.Changes in microstructure of high-carbon hot rolled steels during the cold rolling and continuous annealing was investigated. By cold rolling with a reduction of more than 50%, a lamellar pearlite structure is deformed and heavily sheared, and a large strain energy is stored. Rapid annealing at temperatures just below the A1 temperature(1000K) is shown to spheroidize the sheared pearlite and to recrystallize the ferrite grains. After processing, the final structure consists of very fine cementite particles with 0.05–0.2μm diameter in a very fine equiaxed ferrite matrix with 0.1–0.5μm diameter. The processed steel shows total elongations of more than 700% and a strain rate sensitivity index of about 0.5 when deformed at 973K.
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Mukai T, Watanabe H, Nieh TG, Higashi K. Routes to Develop Fine-Grained Magnesium Alloys and Composites for High-Strain Rate Superplasticity. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-601-291] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractSuperplastic properties of magnesium alloys and their composites were reviewed with a special emphasis on the achievement of high strain rate superplastic forming. The role of grain size on superplastic deformation mechanisms was particularly addressed. Commercial Mg-Al-Zn alloys and a ZK60-based composite are used as model materials to illustrate the underlining principles leading to the observation of high strain rate superplasticity. In this paper, experimental results from several processing routes, including thermomechanical processing, severe plastic deformation, and extrusion of machined chips and rapidly solidified powders, are presented. High strain rate superplasticity (HSRS) is demonstrated in ZK60-based composites.
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12
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Ab-initio calculation of structural, electronic, and optical characterizations of the intermetallic trialuminides ScAl3 compound. J SOLID STATE CHEM 2010. [DOI: 10.1016/j.jssc.2010.03.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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14
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Microstructure and Superplastic Properties at Room Temperature in Zn-22Al Alloy after Equal-Channel-Angular Extrusion. ACTA ACUST UNITED AC 2004. [DOI: 10.4028/www.scientific.net/msf.447-448.489] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Effect of Grain Size and Microstructure on Appearance of Low Temperature Superplasticity in Al-Mg Alloy. ACTA ACUST UNITED AC 2004. [DOI: 10.4028/www.scientific.net/msf.447-448.435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Kashyap BP. Interfacial phenomena and microstructural evolution during superplastic deformation. SURF INTERFACE ANAL 2001. [DOI: 10.1002/sia.1082] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pérez-Prado MT, Cristina MC, Ruano O, González-Doncel G. Deformation Mechanisms of Superplastic Al–Li 8090 Alloy Examined by X-Ray Texture Measurements. ACTA ACUST UNITED AC 2000. [DOI: 10.2320/matertrans1989.41.1562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
| | - Maria Carmen Cristina
- Dept. of Physical Metallurgy, Centro Nacional de Investigaciones Metalúrgicas (CENIM), C.S.I.C
| | - Oscar Ruano
- Dept. of Physical Metallurgy, Centro Nacional de Investigaciones Metalúrgicas (CENIM), C.S.I.C
| | - Gaspar González-Doncel
- Dept. of Physical Metallurgy, Centro Nacional de Investigaciones Metalúrgicas (CENIM), C.S.I.C
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FUJITA T, KOMURA S, HORITA Z, LANGDON TG. Superplasticity of ultrafine-grained Al-3%Mg-0.2%Sc alloy produced by equal-channel angular pressing. ACTA ACUST UNITED AC 2000. [DOI: 10.2464/jilm.50.376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tsutsui H, Watanabe H, Mukai T, Kohzu M, Tanabe S, Higashi K. Superplastic Deformation Behavior in Commercial Magnesium Alloy AZ61. ACTA ACUST UNITED AC 1999. [DOI: 10.2320/matertrans1989.40.931] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Hirosuke Tsutsui
- Department of Metallurgy and Materials Science, Osaka Prefecture University
| | | | | | - Masahide Kohzu
- Department of Metallurgy and Materials Science, Osaka Prefecture University
| | - Shigenori Tanabe
- Department of Metallurgy and Materials Science, Osaka Prefecture University
| | - Kenji Higashi
- Department of Metallurgy and Materials Science, Osaka Prefecture University
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Watanabe H, Mukai T, Kohzu M, Tanabe S, Higashi K. Low Temperature Superplasticity in a ZK60 Magnesium Alloy. ACTA ACUST UNITED AC 1999. [DOI: 10.2320/matertrans1989.40.809] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
| | | | - Masahide Kohzu
- Department of Metallurgy and Materials Science, Osaka Prefecture University
| | - Shigenori Tanabe
- Department of Metallurgy and Materials Science, Osaka Prefecture University
| | - Kenji Higashi
- Department of Metallurgy and Materials Science, Osaka Prefecture University
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Ma Y, Furukawa M, Horita Z, Nemoto M, Valiev RZ, Langdon TG. Significance of Microstructural Control for Superplastic Deformation and Forming. ACTA ACUST UNITED AC 1996. [DOI: 10.2320/matertrans1989.37.336] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Yan Ma
- Departments of Materials Science and Mechanical Engineering, University of Southern California
| | | | - Zenji Horita
- Department of Materials Science and Engineering, Faculty of Engineering 36, Kyushu University
| | - Minoru Nemoto
- Department of Materials Science and Engineering, Faculty of Engineering 36, Kyushu University
| | - Ruslan Z. Valiev
- Institute for Metals Superplasticity Problems, Russian Academy of Sciences
| | - Terence G. Langdon
- Departments of Materials Science and Mechanical Engineering, University of Southern California
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22
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Affiliation(s)
- Terence G. Langdon
- Departments of Materials Science and Mechanical Engineering, University of Southern California
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23
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Yang X, Miura H, Sakai T. Evolution of Fine Grained Microstructure and Superplasticity in Warm-Worked 7075 Aluminum Alloy. ACTA ACUST UNITED AC 1996. [DOI: 10.2320/matertrans1989.37.1379] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Xuyue Yang
- Department of Mechanical and Control Engineering, The University of Electro-Communications
| | - Hiromi Miura
- Department of Mechanical and Control Engineering, The University of Electro-Communications
| | - Taku Sakai
- Department of Mechanical and Control Engineering, The University of Electro-Communications
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24
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Lee IC. A threshold stress for high-temperature plastic flow in WC-CO cemented carbides. ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf03025923] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Enikeev F, Mazurski M. Determination of the strain rate sensitivity of a superplastic material during load relaxation test. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s0956-716x(99)80001-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Sherwood DJ, Hamilton CH. The neighbour-switching mechanism of superplastic deformation: The constitutive relationship and deformation-enhanced grain growth. ACTA ACUST UNITED AC 1994. [DOI: 10.1080/01418619408242541] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mabuchi M, Higashi K, Langdon T. An investigation of the role of a liquid phase in AlCuMg metal matrix composites exhibiting high strain rate superplasticity. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/0956-7151(94)90384-0] [Citation(s) in RCA: 109] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Perevezentsev V, Rybin V, Chuvil'deev V. The theory of structural superplasticity—IV. Cavitation during superplastic deformation. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/0956-7151(92)90068-p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Simulation of static and deformation-enhanced grain growth effects on superplastic ductility. ACTA ACUST UNITED AC 1989. [DOI: 10.1007/bf02670170] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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The influence of rolling direction on the mechanical behavior and formation of cavity stringers in the superplastic Zn-22% Al alloy. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0001-6160(89)90255-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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34
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Varin R. The effects of temperature and strain rate on the plastic flow and ductility of ultrafine-grained type 316 austenitic stainless steel. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0025-5416(87)90325-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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36
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High temperature deformation of rapid solidification processed/mechanically alloyed AlTi Alloys. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0036-9748(87)90424-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Pandey M, Wadsworth J, Mukherjee A. Superplastic deformation behavior in ingot and powder metallurgically processed AlLi-based alloys. ACTA ACUST UNITED AC 1986. [DOI: 10.1016/0025-5416(86)90195-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Murty G. Microstructural evolution effects on the stress — Strain rate behavior of superplastic ZnAl eutectoid alloy. ACTA ACUST UNITED AC 1986. [DOI: 10.1016/0036-9748(86)90249-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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The significance of the dimensionless constant in the rate equation for superplastic flow. ACTA ACUST UNITED AC 1982. [DOI: 10.1007/bf02645951] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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