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Temperature dependence of impact deformation behavior of single crystal Ni based superalloy
Yang, Y. H.; Yu, J. J.; Sun, X. F.; Jin, T.; Guan, H. R.; yhyang@imr.ac.cn
2015
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume31Issue:15Pages:1860-1866
AbstractThe impact test was carried out to investigate the intermediate temperature brittleness of single crystal Ni based superalloy. The samples were impacted at the velocity of similar to 5 m s(-1). The results showed that the impact toughness also exhibited intermediate temperature brittleness, which is similar to the situation in tensile. The samples showed the highest impact toughness at 600 degrees C but exhibited the lowest impact toughness at 760 degrees C. Results showed that the variety of impact toughness was due to the deformation mechanism. At 600 degrees C, a/2 < 110 > dislocation slips on the {111} slip system were attributed to the high impact toughness; however, a/2 < 110 > dislocation slips from octahedral {111} planes to cubic {100} planes resulted in significant work hardening, leading to the decrease of impact toughness.
description.department[yang, y. h. ; yu, j. j. ; sun, x. f. ; jin, t. ; guan, h. r.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china
KeywordSingle Crystal Superalloy Impact Toughness Fracture Deformation Mechanism
Funding OrganizationYunnan Province Academy School Cooperation [2012IB002]; National Natural Science Foundation of China [51331005, 51401210]; China Postdoctoral Science Foundation [2014M550481]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75180
Collection中国科学院金属研究所
Corresponding Authoryhyang@imr.ac.cn
Recommended Citation
GB/T 7714
Yang, Y. H.,Yu, J. J.,Sun, X. F.,et al. Temperature dependence of impact deformation behavior of single crystal Ni based superalloy[J]. MATERIALS SCIENCE AND TECHNOLOGY,2015,31(15):1860-1866.
APA Yang, Y. H.,Yu, J. J.,Sun, X. F.,Jin, T.,Guan, H. R.,&yhyang@imr.ac.cn.(2015).Temperature dependence of impact deformation behavior of single crystal Ni based superalloy.MATERIALS SCIENCE AND TECHNOLOGY,31(15),1860-1866.
MLA Yang, Y. H.,et al."Temperature dependence of impact deformation behavior of single crystal Ni based superalloy".MATERIALS SCIENCE AND TECHNOLOGY 31.15(2015):1860-1866.
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