IMECH-IR  > 非线性力学国家重点实验室
Plasticity performance of Al0.5CoCrCuFeNi high-entropy alloys under nanoindentation
Yu LP; Chen SY; Ren JL; Ren Y; Yang FQ; Dahmen KA; Liaw PK; Ren, JL (reprint author), Zhengzhou Univ, Sch Math & Stat, Zhengzhou 150001, Henan, Peoples R China.
Source PublicationJOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
2017
Conference Name17th IUMRS International Conference in Asia
Conference DateOCT 20-24, 2016
Conference PlaceQingdao, PEOPLES R CHINA
Abstract

The statistical and dynamic behaviors of the displacement-load curves of a high-entropy alloy, Al0.3CoCrCuFeNi, were analyzed for the nanoindentation performed at two temperatures. Critical behavior of serrations at room temperature and chaotic flows at 200 degrees C were detected. These results are attributed to the interaction among a large number of slip hands. For the nanoindentation at room temperature, recurrent partial events between slip hands introduce a hierarchy of length scales, leading to a critical state. For the nanoindentation at 200 degrees C, there is no spatial interference between two slip hands, which is corresponding to the evolution of separated trajectory of chaotic behavior.

KeywordTime-series Cryogenic Temperatures Multicomponent Alloys Serration Behavior Strange Attractors Metallic Glasses Fatigue Behavior Flow High-entropy Alloys Nanoindentation Critical Behavior Chaotic Behaviordeformation Dimension
WOS IDWOS:000401088300007
Indexed ByCPCI-S ; EI
Language英语
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Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/72168
Collection非线性力学国家重点实验室
Corresponding AuthorRen, JL (reprint author), Zhengzhou Univ, Sch Math & Stat, Zhengzhou 150001, Henan, Peoples R China.
Affiliation1.[Yu, Li-ping;Ren, Jing-li] Zhengzhou Univ, Sch Math & Stat, Zhengzhou 150001, Henan, Peoples R China
2.[Chen, Shu-ying;Liaw, Peter K.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
3.[Ren, Jing-li] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
4.[Ren, Yang] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA
5.[Yang, Fu-qian] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA
6.[Dahmen, Karin A.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
Recommended Citation
GB/T 7714
Yu LP,Chen SY,Ren JL,et al. Plasticity performance of Al0.5CoCrCuFeNi high-entropy alloys under nanoindentation[C]. BEIJING:JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD,2017.
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