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Temperature dependence of the Hall-Petch relationship in CoCrFeMnNi high-entropy alloy
Sun, S. J.; Tian, Y. Z.; Lin, H. R.; Dong, X. G.; Wang, Y. H.; Wang, Z. J.; Zhang, Z. F.
2019-10-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume806Pages:992-998
AbstractSingle-phase equiatomic CoCrFeMnNi high-entropy alloy (HEA) specimens with three different grain sizes (0.65 mu m, 2.1 mu m and 105 mu m) were processed by cold rolling and annealing treatment. Tensile properties were investigated over a broad temperature range from 77 K to 873 K. Superior strength-ductility balance can be achieved by refining grain size and decreasing temperature. The Hall-Petch relationship was well fitted, and the fitting parameters have a negative relation with temperature. The thermal and athermal contributions to the yield strength were revealed. This work has unveiled the superior mechanical property of HEAs at cryogenic temperatures. (C) 2019 Elsevier B.V. All rights reserved.
KeywordHigh-entropy alloy Grain size Temperature Hall-Petch relationship Mechanical properties
Indexed BySCI
Language英语
WOS IDWOS:000485039800112
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80687
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. Temperature dependence of the Hall-Petch relationship in CoCrFeMnNi high-entropy alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,806:992-998.
APA Sun, S. J..,Tian, Y. Z..,Lin, H. R..,Dong, X. G..,Wang, Y. H..,...&Zhang, Z. F..(2019).Temperature dependence of the Hall-Petch relationship in CoCrFeMnNi high-entropy alloy.JOURNAL OF ALLOYS AND COMPOUNDS,806,992-998.
MLA Sun, S. J.,et al."Temperature dependence of the Hall-Petch relationship in CoCrFeMnNi high-entropy alloy".JOURNAL OF ALLOYS AND COMPOUNDS 806(2019):992-998.
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