Fatigue properties of TC21 Ti-alloy under uniaxial and multiaxial cyclic variable amplitude loading - 文章详情页

作者：

Tian, Y.-J. (Tian, Y.-J..) | Shang, D.-G. (Shang, D.-G..) (学者：尚德广) | Chen, H. (Chen, H..) | Liu, J.-Z. (Liu, J.-Z..)

收录：

Scopus PKU CSCD

摘要：

The　fatigue　properties　of　TC21　Ti-alloy　for　thin-wall　tube　specimen　are　investigated　under　uniaxial,　tension-torsion　proportional,　non-proportional　and　variable　amplitude　loading.　All　tests　are　strain-controlled.　The　results　indicate　that　cyclic　softening　behavior　is　shown　for　TC21　alloy　under　uniaxial　and　proportional　tension-torsion　constant　amplitude　loading,　and　the　cyclic　softening　is　more　obvious　under　large　strain　amplitude　loading.　The　large　strain　loading　followed　by　small　strain　loading　under　non-proportional　loading,　shows　that　the　cyclic　hardening　for　tension　stress　is　responded　in　the　smaller　strain　loading　stage　due　to　the　previous　larger　strain　loading　strengthening　for　tensional　properties.

关键词：

Cyclic softening and hardening; Multiaxial fatigue; Non-proportional loading; Proportional loading; Variable amplitude

作者机构：

[ 1 ] [Tian, Y.-J.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Shang, D.-G.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Chen, H.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Liu, J.-Z.]Beijing Institute of Aeronautical Materials, Beijing 100095, China

通讯作者信息：

尚德广
[Shang, D.-G.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

shangdg@bjut.edu.cn

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