The effect of pre-deformation on the microstructure evolution of Ni-Al model single crystal superalloy during thermal exposure at 1000 degrees C - 文章详情页

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EI Scopus SCIE

摘要：

The　effect　of　pre-deformation　induced　by　the　tensile　fracture　at　room　temperature　on　the　microstructure　evolution　of　Ni-Al　model　single　crystal　superalloy　during　thermal　exposure　at　1000　degrees　C,　was　investigated　by　scanning　electron　microscope　and　transmission　electron　microscopy.　Recrystallization　occurs　near　the　fracture　surface　where　the　most　severe　plastic　deformation　was　suffered.　The　average　size　of　recrystallization　grains　in　front　of　the　recrystallization　area　is　much　larger　than　that　of　at　the　fracture　surface.　Far　from　the　fracture　surface,　the　average　size　of　coarsened　gamma＇　precipitates　in　the　slip　bands　is　larger　than　that　of　out　of　the　slip　bands.

关键词：

Thermal exposure Ni-Al model single crystal superalloy Recrystallization gamma ' precipitate coarsening

作者机构：

[ 1 ] [Liu, C. P.]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 2 ] [Zhang, X. N.]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 3 ] [Ge, L.]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 4 ] [Wang, C. Y.]Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[ 5 ] [Wang, C. Y.]Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
[ 6 ] [Yu, T.]Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
[ 7 ] [Zhang, Z.]Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[ 8 ] [Zhang, Z.]Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

通讯作者信息：

[Zhang, X. N.]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China

电子邮件地址：

xnzhang@bjut.edu.cn

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