摘要
The effects of heat treatment on the microstructure and phase constitution of Ti-3Zr-2Sn-3Mo-15Nb(TLM) alloy were investigated by optical microscopy,X-ray diffractometry and transmission electron microscopy. The wear resistance of TLM alloy was tested by sliding wear in comparison with as-annealed Ti-6Al-4V and as-aged Ti-13Nb-13Zr. The results show that the specimen cooled from α+β dual phase region is mainly composed of β,α and α″ phases,while the specimen cooled from β single phase region is mainly composed of β and α phases,in which β phase is predominate. The coefficient of friction of TLM alloy treated at 680 ℃,1 h,AC+510 ℃,6 h,AC is smaller than that of others,thereby TLM alloy has a better wear resistance which is also proved by the surface topography after wear test.
The effects of heat treatment on the microstructure and phase constitution of Ti-3Zr-2Sn-3Mo-15Nb （TLM） alloy were investigated by optical microscopy, X-ray diffractometry and transmission electron microscopy. The wear resistance of TLM alloy was tested by sliding wear in comparison with as-annealed Ti-6Al-4V and as-aged Ti-13Nb-13Zr. The results show that the specimen cooled from α＋β dual phase region is mainly composed of β, α and α＂ phases, while the specimen cooled from fl single phase region is mainly composed of β and a phases, in which βphase is predominate, The coefficient of friction of TLM alloy treated at 680 ℃, 1 h, AC＋510℃, 6 h, AC is smaller than that of others, thereby TLM alloy has a better wear resistance which is also proved by the surface topography after wear test.
出处
《中国有色金属学会会刊：英文版》
CSCD
2007年第A01期495-499,共5页
Transactions of Nonferrous Metals Society of China
基金
Project (2005CB623904) supported by the National Basic Research Program of China
关键词
钛
微观结构
合金
热处理技术
Ti-3Zr-2Sn-3Mo-15Nb alloy
microstructure
wear resistance
phase constitution
β titanium alloy
