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Effect of secondary orientation on room temperature tensile behaviors of Ni-base single crystal superalloys
Zhou, Z. J.; Wang, L.; Wang, D.; Lou, L. H.; Zhang, J.; Wang, L (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-04-06
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
卷号659页码:130-142
摘要The influence of secondary orientation and holes on the localization and the evolution of plasticity during room temperature tensile tests of thin wall specimens of a Ni-base single crystal superalloy were investigated. An ARAMIS system based on the digital image correlation technique was employed to in situ observe the strain distribution on the sample surfaces, and an in-situ scanning electron microscopy was used to in-situ observe the slip traces development during tensile tests. For the smooth specimens, the tensile strength of < 110 > specimen is slightly higher than that of < 100 > specimen ( < 110 > and < 100 > are the secondary orientations of the specimens). However, in the case of specimens with a hole in gauge section, detailed analysis indicates that 3-D tensile stress in the vicinity of the hole results in more slip systems initiated in < 100 > specimens, which may lead to stronger strain hardening. As a result, higher strength is obtained in < 100 > specimens with a hole. (C) 2016 Elsevier B.V. All rights reserved.
部门归属[zhou, z. j. ; wang, l. ; wang, d. ; lou, l. h. ; zhang, j.] chinese acad sci, inst met res, superalloys div, 72 wenhua rd, shenyang 110016, peoples r china
关键词Ni-base Single Crystal Superalloy Secondary Orientation Holes Tensile Test Digital Image Correlation Technique In-situ Scanning Electron Microscopy
学科领域Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China [51201164, 51171193]; National High Technology Research and Development Program of China [2012AA03A511]
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/321006/75913
专题中国科学院金属研究所
通讯作者Wang, L (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Zhou, Z. J.,Wang, L.,Wang, D.,et al. Effect of secondary orientation on room temperature tensile behaviors of Ni-base single crystal superalloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,659:130-142.
APA Zhou, Z. J.,Wang, L.,Wang, D.,Lou, L. H.,Zhang, J.,&Wang, L .(2016).Effect of secondary orientation on room temperature tensile behaviors of Ni-base single crystal superalloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,659,130-142.
MLA Zhou, Z. J.,et al."Effect of secondary orientation on room temperature tensile behaviors of Ni-base single crystal superalloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 659(2016):130-142.
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