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Faceted Kurdjumov-Sachs interface-induced slip continuity in the eutectic high-entropy alloy, AlCoCrFeNi2.1
Xiong, Ting1,2; Yang, Wenfan1,2; Zheng, Shijian1,3; Liu, Zhaorui4,5,6; Lu, Yiping7; Zhang, Ruifeng4,5,6; Zhou, Yangtao1; Shao, Xiaohong1; Zhang, Bo1; Wang, Jun8; Yin, Fuxing3; Liaw, Peter K.9; Ma, Xiuliang1,10
Corresponding AuthorZheng, Shijian(sjzheng@imr.ac.cn) ; Zhang, Ruifeng(zrf@buaa.edu.cn) ; Liaw, Peter K.(pliaw@utk.edu) ; Ma, Xiuliang(xlma@imr.ac.cn)
2021-02-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume65Pages:216-227
AbstractRecently, the eutectic high-entropy alloy (EHEA), AlCoCrFeNi2.1, can reach a good balance of strength and ductility. The dual-phase alloy exhibits a eutectic lamellar microstructure with large numbers of interfaces. However, the role of the interfaces in plastic deformation have not been revealed deeply. In the present work, the orientation relationship (OR) of the interfaces has been clarified as the Kurdjumov-Sachs (KS) interfaces presenting < 111 >(B2) parallel to < 110 >(FCC) and {110}(B2) parallel to {111}(FCC) independent of their morphologies. There exist three kinds of interfaces in the EHEA, namely, (321)(B2)parallel to(112)(FCC), (01 (1) over bar)(B2)parallel to(332<())over bar>(FCC), and (23 (1) over bar)(B2) parallel to(552)(FCC). The dominating (321)(B2)parallel to(112)(FCC) interface and the secondary (01 (1) over bar)(B2)parallel to(33 (2) over bar)(FCC) interface are both non-slip planes and atomistic-scale faceted, facilitating the nucleation and slip transmission of the dislocations. The formation mechanism of the preferred interfaces is revealed using the atomistic geometrical analysis according to the criteria of the low interfacial energy based on the coincidence-site lattice (CSL) theory. In particular, the ductility of the dual-phase alloy originates from the KS interface-induced slip continuity across interfaces, which provides a high slip-transfer geometric factor. Moreover, the strengthening effect can be attributed to the interface resistance for the dislocation transmission due to the mismatches of the moduli and lattice parameters at the interfaces. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordHigh-entropy alloy AlCoCrFeNi2.1 Interface Kurdjumov-Sachs (KS) Dislocation
Funding OrganizationNational Natural Science Foundation of China ; Key Project of Natural Science Foundation of Liaoning Province, China ; Shenyang National Laboratory for Materials Science ; State KeyLaboratory of Solidification Processing in Northwestern Polytechnical University ; U.S. Army Research Office Project ; National Science Foundation
DOI10.1016/j.jmst.2020.04.073
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771201] ; National Natural Science Foundation of China[51822402] ; Key Project of Natural Science Foundation of Liaoning Province, China[20180510059] ; Shenyang National Laboratory for Materials Science[2017RP17] ; State KeyLaboratory of Solidification Processing in Northwestern Polytechnical University[SKLSP201902] ; U.S. Army Research Office Project[W911NF-13-1-0438] ; U.S. Army Research Office Project[W911NF-19-2-0049] ; National Science Foundation[DMR-1611180] ; National Science Foundation[DMR-1809640]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000609935300022
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159091
Collection中国科学院金属研究所
Corresponding AuthorZheng, Shijian; Zhang, Ruifeng; Liaw, Peter K.; Ma, Xiuliang
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
3.Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin Key Lab Mat Laminating Fabricat & Interfa, Tianjin 300130, Peoples R China
4.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
5.Beihang Univ, Ctr Integrated Computat Mat Engn, Int Res Inst Multidisciplinary Sci, Minist Ind & Informat Technol, Beijing 100191, Peoples R China
6.Beihang Univ, Key Lab High Temp Struct Mat & Coatings Technol, Minist Ind & Informat Technol, Beijing 100191, Peoples R China
7.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, Dalian 116024, Peoples R China
8.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
9.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
10.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
Recommended Citation
GB/T 7714
Xiong, Ting,Yang, Wenfan,Zheng, Shijian,et al. Faceted Kurdjumov-Sachs interface-induced slip continuity in the eutectic high-entropy alloy, AlCoCrFeNi2.1[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,65:216-227.
APA Xiong, Ting.,Yang, Wenfan.,Zheng, Shijian.,Liu, Zhaorui.,Lu, Yiping.,...&Ma, Xiuliang.(2021).Faceted Kurdjumov-Sachs interface-induced slip continuity in the eutectic high-entropy alloy, AlCoCrFeNi2.1.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,65,216-227.
MLA Xiong, Ting,et al."Faceted Kurdjumov-Sachs interface-induced slip continuity in the eutectic high-entropy alloy, AlCoCrFeNi2.1".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 65(2021):216-227.
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