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Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy
Sun, S. J.; Tian, Y. Z.; Lin, H. R.; Lu, S.; Yang, H. J.; Zhang, Z. F.
2019-04-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume163Pages:111-115
AbstractCoCrFeMnNi high-entropy alloy (HEA) exhibits excellent combination of strength and ductility, but low yield strength. In order to ameliorate the mechanical properties, prestrain was applied in this work. The HEA prestrained at 77 K possesses higher yield strength and uniform elongation than the HEA prestrained at 293 K, indicating that the trade-off relationship between strength and ductility can be broken by modulating the prestrain history. Furthermore, the yield point phenomenon was disappeared after prestrained at 77 K. This can be related to the density and distribution of dislocations as imposed in the prestrain process at 293 K and 77 K. (C) 2019 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
KeywordHigh-entropy alloy Prestrain Temperature Yield strength Elongation
Indexed BySCI
Language英语
WOS IDWOS:000458940000023
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81239
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Sun, S. J.,Tian, Y. Z.,Lin, H. R.,et al. Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy[J]. SCRIPTA MATERIALIA,2019,163:111-115.
APA Sun, S. J.,Tian, Y. Z.,Lin, H. R.,Lu, S.,Yang, H. J.,&Zhang, Z. F..(2019).Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy.SCRIPTA MATERIALIA,163,111-115.
MLA Sun, S. J.,et al."Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy".SCRIPTA MATERIALIA 163(2019):111-115.
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