Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy
Titanium has many limitations in coverage and frequency of application due to its expensive alloying elements and complex manufacturing process. The biocompatible Ti-Mo-Fe ternary beta titanium alloys were designed by replacing high-cost beta-stabilizer elements (V, Nb, Zr, etc.) with low-cost Mo an...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/14/7257 |
| _version_ | 1797441013639282688 |
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| author | Hyo-Woon Hwang Ji-Hwan Park Dong-Geun Lee |
| author_facet | Hyo-Woon Hwang Ji-Hwan Park Dong-Geun Lee |
| author_sort | Hyo-Woon Hwang |
| collection | DOAJ |
| description | Titanium has many limitations in coverage and frequency of application due to its expensive alloying elements and complex manufacturing process. The biocompatible Ti-Mo-Fe ternary beta titanium alloys were designed by replacing high-cost beta-stabilizer elements (V, Nb, Zr, etc.) with low-cost Mo and Fe elements. In addition, it was attempted to obtain a low-cost, high-strength beta-titanium alloy with 800 MPa or more by applying the powder metallurgy process technology to the Ti-Mo-Fe alloy system. The added Mo element has the effect of reducing the elastic modulus of the titanium alloy without reducing its strength. In this study, Ti-Mo-Fe alloys designed with different Mo contents were fabricated using a powder metallurgy process and analyzed in connection with microstructural properties, phase changes, and mechanical properties. As Mo contents are increased, the α-lath thickness of Widmanstätten decreases and the size of prior β grain decreases. It was confirmed that the hardness and tensile strength were excellent and were compared with the ingot material of the same alloy system. |
| first_indexed | 2024-03-09T12:16:47Z |
| format | Article |
| id | doaj.art-60d7e49b468948e6aec9d82246610877 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T12:16:47Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-60d7e49b468948e6aec9d822466108772023-11-30T22:45:40ZengMDPI AGApplied Sciences2076-34172022-07-011214725710.3390/app12147257Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder MetallurgyHyo-Woon Hwang0Ji-Hwan Park1Dong-Geun Lee2Department of Materials Science and Metallurgical Engineering, Sunchon National University, Suncheon 57922, KoreaMaterial Technical Innovation Group (MTIG), Hwaseong-si 18574, KoreaDepartment of Materials Science and Metallurgical Engineering, Sunchon National University, Suncheon 57922, KoreaTitanium has many limitations in coverage and frequency of application due to its expensive alloying elements and complex manufacturing process. The biocompatible Ti-Mo-Fe ternary beta titanium alloys were designed by replacing high-cost beta-stabilizer elements (V, Nb, Zr, etc.) with low-cost Mo and Fe elements. In addition, it was attempted to obtain a low-cost, high-strength beta-titanium alloy with 800 MPa or more by applying the powder metallurgy process technology to the Ti-Mo-Fe alloy system. The added Mo element has the effect of reducing the elastic modulus of the titanium alloy without reducing its strength. In this study, Ti-Mo-Fe alloys designed with different Mo contents were fabricated using a powder metallurgy process and analyzed in connection with microstructural properties, phase changes, and mechanical properties. As Mo contents are increased, the α-lath thickness of Widmanstätten decreases and the size of prior β grain decreases. It was confirmed that the hardness and tensile strength were excellent and were compared with the ingot material of the same alloy system.https://www.mdpi.com/2076-3417/12/14/7257Ti-Mo-Fe alloybeta titaniumpowder metallurgylow costhigh strength |
| spellingShingle | Hyo-Woon Hwang Ji-Hwan Park Dong-Geun Lee Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy Applied Sciences Ti-Mo-Fe alloy beta titanium powder metallurgy low cost high strength |
| title | Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy |
| title_full | Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy |
| title_fullStr | Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy |
| title_full_unstemmed | Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy |
| title_short | Effect of Molybdenum Content on Microstructure and Mechanical Properties of Ti-Mo-Fe Alloys by Powder Metallurgy |
| title_sort | effect of molybdenum content on microstructure and mechanical properties of ti mo fe alloys by powder metallurgy |
| topic | Ti-Mo-Fe alloy beta titanium powder metallurgy low cost high strength |
| url | https://www.mdpi.com/2076-3417/12/14/7257 |
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