您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    Special 1    November 2007

[PDF Download]    [Flash Online]

    

Microstructure and wear resistance of Ti-3Zr-2Sn-3Mo-15Nb (TLM) alloy
YU Zhen-tao(于振涛)1, ZHENG Yu-feng(郑玉峰)2, NIU Jin-long(牛金龙)1,
HUANGFU Qiang(皇甫强)1, ZHANG Ya-feng(张亚峰)1, YU Sen(余  森)

1. Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China;
2. State Key Laboratory for Turbulence and Complex System,
Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China

Abstract: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.

 

Key words: Ti-3Zr-2Sn-3Mo-15Nb alloy; microstructure; wear resistance; phase constitution; β titanium alloy

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn