1
|
Alghannam AA, Soliman MS, Seikh AH, Alnaser IA, Fouly A, Mohammed JA, Ragab SA, Abdo HS. Investigation on mechanical properties and corrosion resistance of Ti-modified AA5083 aluminum alloy for aerospace and automotive applications. Sci Rep 2023; 13:11535. [PMID: 37460619 DOI: 10.1038/s41598-023-38510-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/09/2023] [Indexed: 07/20/2023] Open
Abstract
Casting of aluminum with different concentration of alloying elements such as Mg, Mn (similar to that in AA5083) with additional percentages of 0.1, 0.2 and 0.3% Ti, are carried out using graphite crucible. The as-cast microstructure is modified by hot rolling to a thickness of ~ 2 mm. Mechanical and metallurgical and characterization of heat-treated thin sheets are carried out using tensile testing, hardness measurement, metallography, image analysis and optical microscope. By increasing the Ti content, the results show grain refinement and increase in the formation of Al3Ti which reflected positively on the mechanical properties. Specifically, Ultimate tensile strength is increased from 260 MPa (0 wt% Ti) to 345 MPa (0.3 wt% Ti) when using water quenching, 32.6% improvement for air cooling, and 23.3% for furnace cooling. Electrochemical corrosion behavior of heat-treated water quenched, air cooled and furnace cooled samples were tested in 3.5% NaCl solution. The results show that the heat-treated alloys have very good resistance against corrosion, while by increasing the Ti content, the corrosion rate increases due to the grain refinement phenomena.
Collapse
Affiliation(s)
- Abdullah A Alghannam
- Mechanical Engineering Department, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Mahmoud S Soliman
- Mechanical Engineering Department, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Asiful H Seikh
- Centre of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Ibrahim A Alnaser
- Mechanical Engineering Department, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia
- Centre of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Ahmed Fouly
- Mechanical Engineering Department, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Jabair A Mohammed
- Centre of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Sameh A Ragab
- Centre of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research, King Saud University, 11421, Riyadh, Saudi Arabia
| | - Hany S Abdo
- Centre of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research, King Saud University, 11421, Riyadh, Saudi Arabia.
| |
Collapse
|
2
|
Aly HA, El-Sayed Seleman MM, Bakkar A, Albaijan I, Ahmed MMZ, Ibrahim KM. Effect of Si Content on the Thermal Expansion of Ti15Mo(0-2 Si) Biomaterial Alloys during Different Heating Rates. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4768. [PMID: 37445083 DOI: 10.3390/ma16134768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
Thermal expansion measurements were used to characterize phase transformations in metastable β-Ti alloys (Ti15MoxSi) without and with various Si additions (where x = 0, 0.5, 1.0, 1.5, and 2 in wt.%) during linear heating at two heating rates of 5 and 10 °C/min up to 850 °C. For this study, five alloys were developed and examined in terms of their presence phases, microstructures, and starting and final transformation temperatures. According to the results, all of the as-cast samples primarily include an equiaxed β-Ti phase. The influence of phase transformation on the material dimensions was discussed and compared with the variations in Si contents. The transformation was investigated using a dilatometric technique for the developed alloys during continuous heating and cooling. The dilatometric curve of heating revealed two distinct reflection points as the heating temperature increased. The starting transformation temperature (Ts) to obtain the ω-phase was reported at 359 °C without Si addition; whereas the final transformation temperature (Tf) of the dissolution of α-phase was obtained at 572 °C at a heating rate of 10 °C/min. At 2 wt.% Si, the first derivative curves reported Ts and Tf transforming temperatures of 314-565 °C (at a 5 °C/min heating rate) and 270-540 °C (at a 10 °C/min heating rate), respectively. The Ts and Tf transforming temperatures were significantly decreased with Si additions, which decreased the β-transus temperature. Moreover, the thermal expansion coefficient curves of the investigated alloys without and with 2 wt.% Si were studied. The transformation heating curves have an S-shaped pattern, according to the results.
Collapse
Affiliation(s)
- Hayam A Aly
- Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43512, Egypt
- Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan 11421, Egypt
| | - Mohamed M El-Sayed Seleman
- Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43512, Egypt
| | - Ashraf Bakkar
- Department of Environmental Engineering, College of Engineering at Al-Leith, Um Al-Qura University, Al-Lith 28434, Saudi Arabia
| | - Ibrahim Albaijan
- Mechanical Engineering Department, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Mohamed M Z Ahmed
- Mechanical Engineering Department, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Khaled M Ibrahim
- Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan 11421, Egypt
| |
Collapse
|
3
|
Alnaser IA, Abdo HS, Abdo MS, Alkalla M, Fouly A. Effect of Synthesized Titanium Dioxide Nanofibers Weight Fraction on the Tribological Characteristics of Magnesium Nanocomposites Used in Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:294. [PMID: 36678046 PMCID: PMC9864214 DOI: 10.3390/nano13020294] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
Biomedical applications, such as artificial implants, are very significant for the disabled due to their usage in orthopedics. Nevertheless, available materials in such applications have insufficient mechanical and tribological properties. The current study investigated the mechanical and tribological properties of a biomedical metallic material, magnesium (Mg), after incorporating titanium dioxide nanofibers (TiO2) with different loading fractions. The TiO2 nanofibers were synthesized using the electrospinning technique. The ball-milling technique was utilized to ensure the homogenous distribution of TiO2 nanofibers inside the Mg matrix. Then, samples of the mixed powder with different loading fractions of TiO2 nanofibers, 0, 1, 3, 5, and 10 wt.%, were fabricated using a high-frequency induction heat sintering technique. The physicomechanical and tribological properties of the produced Mg/TiO2 nanocomposites were evaluated experimentally. Results showed an enhancement in mechanical properties and wear resistance accompanied by an increase in the weight fraction of TiO2 nanofibers up to 5%. A finite element model was built to assess the load-carrying capacity of the Mg/TiO2 composite to estimate different contact stresses during the frictional process. The finite element results showed an agreement with the experimental results.
Collapse
Affiliation(s)
- Ibrahim A. Alnaser
- Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Hany S. Abdo
- Mechanical Design and Materials Department, Faculty of Energy Engineering, Aswan University, Aswan 81521, Egypt
| | - Mohamed S. Abdo
- Biomedical Engineering Department, Faculty of Engineering, Minia University, Minia 61519, Egypt
| | - Mohamed Alkalla
- Mechatronics Engineering and Intelligent Machines, School of Engineering, University of Central Lancashire, Preston PR1 2HE, UK
- Production Engineering and Mechanical Design Department, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed Fouly
- Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, Minia 61519, Egypt
| |
Collapse
|