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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
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume659Pages:130-142
AbstractThe 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.
description.department[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
KeywordNi-base Single Crystal Superalloy Secondary Orientation Holes Tensile Test Digital Image Correlation Technique In-situ Scanning Electron Microscopy
Subject AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51201164, 51171193]; National High Technology Research and Development Program of China [2012AA03A511]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75913
Collection中国科学院金属研究所
Corresponding AuthorWang, L (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
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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