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High Temperature Stress Rupture Anisotropy of a Ni-Based Single Crystal Superalloy
Wang, GL; Liu, JL; Liu, JD; Jin, T; Sun, XF; Sun, XD; Hu, ZQ; Jin, T (reprint author), Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China.
2016-10-01
发表期刊JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
卷号32期号:10页码:1003-1007
摘要High temperature stress rupture anisotropies of a second generation Ni-base single crystal (SC) superalloy specimens with [001], [011] and [111] orientations under 900 degrees C/445 MPa and 1100 degrees C/100 MPa have been investigated in the present study, with attentions to the evolution of gamma/gamma' microstructure observed by scanning electron microscopy and the dislocation configuration characterized by transmission electron microscopy in each oriented specimen. At 1100 degrees C/100 MPa as well as 900 degrees C/445 MPa, the single crystal superalloy exhibits obvious stress rupture anisotropic behavior. The [001] oriented specimen has the longest rupture lifetime at 900 degrees C/445 MPa, and the [111] oriented sample shows the best rupture strength at 1100 degrees C/100 MPa. While the [011] oriented specimen presents the worst rupture lifetime at each testing condition, its stress rupture property at 1100 degrees C/100 MPa is clearly improved, compared with 900 degrees C/445 MPa. The evident stress rupture anisotropy at 900 degrees C/445 MPa is mainly attributed to the distinctive movement way of dislocations in each oriented sample. Whereas, at 1100 degrees C/100 MPa, together with the individual dislocation configuration, the evolution of gamma/gamma' microstructure in each orientation also plays a key role in the apparent stress rupture anisotropy. Copyright (C) 2016, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited.
部门归属[wang, guanglei ; liu, jinlai ; liu, jide ; jin, tao ; sun, xiaofeng ; hu, zhuangqi] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china ; [wang, guanglei ; sun, xudong ; hu, zhuangqi] northeastern univ, minist educ, key lab anisotropy & texture mat, shenyang 110819, peoples r china
关键词Ni-based Single Crystal Superalloy Stress Rupture Property Anisotropy Microstructure Characterization Deformation Mechanism
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National High Technology Research and Development Program of China ("863 Program") [20102014AA041701]; National Natural Science Foundation of China [51331005, 51401210]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76245
专题中国科学院金属研究所
通讯作者Jin, T (reprint author), Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Wang, GL,Liu, JL,Liu, JD,et al. High Temperature Stress Rupture Anisotropy of a Ni-Based Single Crystal Superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2016,32(10):1003-1007.
APA Wang, GL.,Liu, JL.,Liu, JD.,Jin, T.,Sun, XF.,...&Jin, T .(2016).High Temperature Stress Rupture Anisotropy of a Ni-Based Single Crystal Superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,32(10),1003-1007.
MLA Wang, GL,et al."High Temperature Stress Rupture Anisotropy of a Ni-Based Single Crystal Superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 32.10(2016):1003-1007.
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