Effect of rhenium and ruthenium on the deformation and fracture mechanism in nickel-based model single crystal superalloys during the in-situ tensile at room temperature - 文章详情页

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摘要：

In-situ　tensile　experiments　of　Ni-Al,　Ni-Al-Re　and　Ni-Al-Re-Ru　model　single-crystal　superalloys　were　performed　in　scanning　electron　microscope　(SEM)　at　room　temperature.　The　plastic　deformation　mechanisms　of　all　the　three　model　superalloys　were　double-oriented　slipping　of　dislocations.　Micro-cracks　were　often　formed　at　the　intersection　of　two　sets　of　slip　lines.　The　fracture　surfaces　of　Ni-Al　and　Ni-Al-Re-Ru　alloys　were　nearly　parallel　to　(010)　planes　and　that　of　the　Ni-Al-Re　alloys　was　nearly　parallel　to　(1-11)　plane.　The　dislocation　configuration　was　analyzed　by　transmission　electron　microscopy　(TEM).　The　a/2　＜　110　＞　dislocation　pairs　coupled　with　antiphase　boundary　(APB)　cut　into　gamma＇　phase　in　the　Ni-Al　and　Ni-Al-Re-Ru　model　superalloys.　In　addition　to　these　dislocations,　stacking　faults　also　cut　into　gamma＇　phase　in　Ni-Al-Re　model　superalloys.　The　different　fracture　surfaces　of　different　model　single-crystal　superalloys　were　attributed　to　the　influence　of　elements　Re　and　Ru　on　the　dislocation　configuration.

关键词：

In-situ tensile experiment Dislocation configurations Fracture Nickel-based model single crystal superalloys

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 ] [Zhang, Y. F.]Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[ 5 ] [Liu, S. H.]Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
[ 6 ] [Wang, C. Y.]Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[ 7 ] [Wang, C. Y.]Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
[ 8 ] [Yu, T.]Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
[ 9 ] [Zhang, Z.]Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[ 10 ] [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;;[Zhang, Z.]Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China;;[Zhang, Z.]Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

电子邮件地址：

xnzhang@bjut.edu.cn |
zezhang@zju.edu.cn

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