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Karasoglu M, Öteyaka MÖ, Yasa E, Tan E, Kuşhan MC. Effect of Heat Treatment and Hot Isostatic Pressing on the Corrosion Behavior of Ti 6Al 4 V Parts Produced by Electron Beam Melting Additive Manufacturing Technology. ACS OMEGA 2024; 9:29904-29916. [PMID: 39005775 PMCID: PMC11238281 DOI: 10.1021/acsomega.4c04218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024]
Abstract
In this study, we investigated the effect of heat treatment (HT) and hot isostatic press (HIP) on the corrosion behavior of Ti6Al4 V, manufactured by electron beam melting (EBM) additive manufacturing. The preliminary results showed that the thermal process makes the columnar structure more pronounced and the α-lathe coarser compared to EBM. The β phase disappeared with the aging treatment and when increasing the HIP temperature treatment. According the open circuit potential (E ocp) behavior of samples, the HIP3 sample had performed more positive corrosion potential than rivals after 2 h of immersion probably due to equiaxed grain with coarser α-late and the absence of the β phase. In adverse, inferior corrosion behavior was observed for HIP1 because of a higher quantity of the β phase causing probably galvanic corrosion. The HIP process leads to a lower corrosion potential than EBM. At least one protective oxide layer formation was observed for all samples at the anodic branch, and the current density was lower for the HT3 sample. The microstructure analysis revealed the presence of the β-phase in the form of needle-like for the HT1 sample and HIP1 in the corroded area. Furthermore, the EDS line analysis showed the presence of aluminum with oxygen at the edge of the corrosion area for HIP1 suggesting aluminum plays a barrier against degradation. On the other hand, the HT1 showed higher impedance resistance due to the coarser α-lathe microstructure and well-defined β phase.
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Affiliation(s)
- Mutlu Karasoglu
- Department
of Mechanical Engineering, Faculty of Engineering, Eskişehir Technical University, Eskişehir 26555, Turkey
- Department
of Mechanical Engineering, Faculty of Engineering and Architecture, Eskişehir Osmangazi University, Eskişehir 26480, Turkey
| | - Mustafa Özgür Öteyaka
- Eskisehir
Vocational School, Department of Electronic and Automation, Eskişehir Osmangazi University, Eskişehir 26250, Turkey
| | - Evren Yasa
- Department
of Mechanical Engineering, Faculty of Engineering and Architecture, Eskişehir Osmangazi University, Eskişehir 26480, Turkey
- Advanced
Manufacturing Research Centre/University
of Sheffield, Sheffield S60 5TZ, U.K.
| | - Evren Tan
- Mechanical
Design Technologies Department, ASELSAN
Inc, EKIM Laboratory, Ankara 06200, Turkey
| | - Melih Cemal Kuşhan
- Department
of Aeronautical Engineering, Faculty of Engineering and Architecture, Eskişehir Osmangazi University, Eskişehir 26040, Turkey
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Imani A, Rahimi E, Lekka M, Andreatta F, Magnan M, Gonzalez-Garcia Y, Mol A, Raman RKS, Fedrizzi L, Asselin E. Albumin Protein Impact on Early-Stage In Vitro Biodegradation of Magnesium Alloy (WE43). ACS APPLIED MATERIALS & INTERFACES 2024; 16:1659-1674. [PMID: 38108601 PMCID: PMC10788864 DOI: 10.1021/acsami.3c12381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/03/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
Mg and its alloys are promising biodegradable materials for orthopedic implants and cardiovascular stents. The first interactions of protein molecules with Mg alloy surfaces have a substantial impact on their biocompatibility and biodegradation. We investigate the early-stage electrochemical, chemical, morphological, and electrical surface potential changes of alloy WE43 in either 154 mM NaCl or Hanks' simulated physiological solutions in the absence or presence of bovine serum albumin (BSA) protein. WE43 had the lowest electrochemical current noise (ECN) fluctuations, the highest noise resistance (Zn = 1774 Ω·cm2), and the highest total impedance (|Z| = 332 Ω·cm2) when immersed for 30 min in Hanks' solution. The highest ECN, lowest Zn (1430 Ω·cm2), and |Z| (49 Ω·cm2) were observed in the NaCl solution. In the solutions containing BSA, a unique dual-mode biodegradation was observed. Adding BSA to a NaCl solution increased |Z| from 49 to 97 Ω·cm2 and decreased the ECN signal of the alloy, i.e., the BSA inhibited corrosion. On the other hand, the presence of BSA in Hanks' solution increased the rate of biodegradation by decreasing both Zn and |Z| while increasing ECN. Finally, using scanning Kelvin probe force microscopy (SKPFM), we observed an adsorbed nanolayer of BSA with aggregated and fibrillar morphology only in Hanks' solution, where the electrical surface potential was 52 mV lower than that of the Mg oxide layer.
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Affiliation(s)
- Amin Imani
- Department
of Materials Engineering, The University
of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Department
of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Ehsan Rahimi
- Department
of Materials Science and Engineering, Delft
University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Maria Lekka
- CIDETEC,
Basque Research and Technology Alliance (BRTA), 20014 Donostia, San Sebastián, Spain
| | - Francesco Andreatta
- Polytechnic
Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy
| | - Michele Magnan
- Polytechnic
Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy
| | - Yaiza Gonzalez-Garcia
- Department
of Materials Science and Engineering, Delft
University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Arjan Mol
- Department
of Materials Science and Engineering, Delft
University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
| | - R. K. Singh Raman
- Department
of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia
- Department
of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Lorenzo Fedrizzi
- Polytechnic
Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy
| | - Edouard Asselin
- Department
of Materials Engineering, The University
of British Columbia, Vancouver, BC V6T 1Z4, Canada
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Imani A, Clifford AM, Raman RKS, Asselin E. Insight into synergetic effects of serum albumin and glucose on the biodegradation behavior of WE43 alloy in simulated body fluid. Biomed Mater 2022; 18. [PMID: 36395511 DOI: 10.1088/1748-605x/aca3e8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/17/2022] [Indexed: 11/18/2022]
Abstract
The biodegradation rate of Mg alloy medical devices, such as screws and plates for temporary bone fracture fixation or coronary angioplasty stents, is an increasingly important area of study.In vitromodels of the corrosion behavior of these devices use revised simulated body fluid (m-SBF) based on a healthy individual's blood chemistry. Therefore, model outputs have limited application to patients with altered blood plasma glucose or protein concentrations. This work studies the biodegradation behavior of Mg alloy WE43 in m-SBF modified with varying concentrations of glucose and bovine serum albumin (BSA) to (1) mimic a range of disease states and (2) determine the contributions of each biomolecule to corrosion. Measurements include the Mg ion release rate, electrolyte pH, the extent of hydrogen evolution (as a proxy for corrosion rate), surface morphology, and corrosion product composition and effects. BSA (0.1 g l-1) suppresses the rate of hydrogen evolution (about 30%) after 24 h and-to a lesser degree-Mg2+release in both the presence and absence of glucose. This effect gets more pronounced with time, possibly due to BSA adsorption on the Mg surface. Electrochemical studies confirm that adding glucose (2 g l-1) to the solution containing BSA (0.1 g l-1) caused a decrease in corrosion resistance (by around 40%), and concomitant increase in the hydrogen evolution rate (from 10.32 to 11.04 mg cm-2d-1) to levels far beyond the tolerance limits of live tissues.
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Affiliation(s)
- Amin Imani
- Department of Materials Engineering, Faculty of Applied Science, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada.,Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Amanda M Clifford
- Department of Materials Engineering, Faculty of Applied Science, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - R K Singh Raman
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia.,Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Edouard Asselin
- Department of Materials Engineering, Faculty of Applied Science, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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