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| Effect of solution aging treatment on microstructure and properties of TC4 titanium alloy |
| XU Jian1, WANG Wen-yan1,2, ZHANG Hao-yin1, XIE Jing-pei1,2, LI Luo-li1 |
1. School of Material Science and Engineering, He’nan University of Science and Technology, Luoyang 471003, China
2. He’nan Key Laboratory of Non-Ferrous Materials Science and Processing Technology, Luoyang 471023, China |
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Abstract TC4 titanium alloy powder was prepared with the method of cold isostatic pressing and vacuum sintering. By adopting different solution temperature and aging temperature, the effect of heat treatment process on microstructure and properties of TC4 powder metallurgy titanium alloy was studied. The results show that tensile strength and elongation of TC4 powder metallurgy titanium alloy can reach 852 MPa and 16%, respectively. With the improvement of solid solution temperature, the tensile strength increases and the elongation decreases. With the improvement of aging temperature, the tensile strength decreases and the elongation increases. When solid solution treated at 960 ℃ for 30 min and aged at 470 ℃ for 4 h, tensile strength of the alloy reaches 1 078 MPa, and the elongation reaches 11%.
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Received: 31 December 2013
Published: 16 October 2014
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2014, Vol. 24 
