Tensile and creep properties of Ti-600 alloy
Ti-600 is one of the high performance titanium alloys used at 600 ℃,which was developed in Northwest Institute for Nonferrous Metal Research (NIN) in China.The tensile and creep properties of Ti-600 alloy with different thermal treatment conditions were investigated.The results indicate that Ti-600 alloy possesses favorite comprehensive properties solution-treated at 1 020 ℃ for 1 h,then air-cool,and aged at 650 ℃ for 8 h,finally air-cooling,especially possesses quite good creep resistance.The residual deformation is less than 0.1％ for the alloy exposed at 600 ℃ for 100 h with the stress of 150 MPa,and the bimodal microstructures of the alloy are almost the same as that of the alloy treated by duplex thermal treatment,only needle primary α phases became relatively thicker and coarsened.The ultimate strength and the elongation of the alloy tested at ambient temperature are 1 080 MPa and 12％,respectively; while at 600 ℃,they are 690 MPa and 16％,respectively.The ductility of the alloy tested at room temperature is no less than 5％ after thermal exposing at 600 ℃ for 100 h.
Ti-600 alloy high temperature titanium alloy tensile property creep resistance
ZENG Li-ying HONG Quan YANG Guan-jun ZHAO Yong-qing QI Yun-lian GUO Ping
Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China;School of Metallurgical Enginee Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,Chi
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）