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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    Special 1    November 2007

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Fatigue properties of pack ply-rolling Ti-6Al-4V alloy sheets
HONG Quan(洪  权), YANG Guan-jun(杨冠军), ZHAO Yong-qing(赵永庆),
 QI Yun-lian(戚运莲), GUO Ping(郭  萍)

Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China

Abstract:The influence of pack ply-rolling process and heat-treatment on the texture characteristics of Ti-6Al-4V alloy sheets was investigated applying the EBSD technique. The tensile properties and fatigue properties of the sheets possessing different type textures were measured. The results show that the alloy sheets possessing single type texture (B or T) exhibit lower fatigue strength compared with the mixed texture (B/T). The sheet possessing basal texture exhibits isotropy and its elastic modulus and yield strength are lower than those under other conditions.

 

Key words: Ti-6Al-4V alloy; pack ply-rolling; sheet; texture; fatigue properties

ISSN 1672-7029
CN 43-1423/U

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