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Ultra-fine grain size and exceptionally high strength in dilute Mg-Ca alloys achieved by conventional one-step extrusion
Pan, Hucheng1; Yang, Changlin2; Yang, Yantao1; Dai, Yongqiang1; Zhou, Dengshan1; Chai, Linjiang3; Huang, Qiuyan4; Yang, Qingshan5; Liu, Shengming6; Ren, Yuping1; Qin, Gaowu1
Corresponding AuthorPan, Hucheng(panhc@atm.neu.edu.cn) ; Qin, Gaowu()
2019-02-15
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume237Pages:65-68
AbstractWe reported that the Mg-Ca dilute alloys can exhibit ultra-fine grain size (less than 1 um) and the exceptionally high yield strength, e.g., similar to 290 MPa in the Mg-0.1 wt% Ca alloy and similar to 377 MPa in Mg-1.0 wt% Ca alloy, achieved by conventional one-step extrusion. Both increased activations of non-basal slips due to Ca addition and the dynamic partitioning of Ca atoms during extrusion are believed to play the critical role in facilitating formation of the submicron matrix grains. Multi-scale substructures, including the ultrafine recrystallized grains, the mono-dispersive Mg-2 Ca nano-phases, residual dislocations and Ca enriched sub-grain boundaries contribute to the high strength. (C) 2018 Elsevier B.V. All rights reserved.
KeywordWrought Mg alloy Grain size Segregations Recrystallization Strength properties
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; State Key Laboratory of Solidification Processing in NWPU ; Open Research Subject of Key Laboratory (Research Base) ; Fundamental Research Funds for the Central Universities
DOI10.1016/j.matlet.2018.11.080
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFB0701200] ; National Natural Science Foundation of China[51525101] ; National Natural Science Foundation of China[U1610253] ; National Natural Science Foundation of China[51501032] ; National Natural Science Foundation of China[51701033] ; State Key Laboratory of Solidification Processing in NWPU[SKLSP201738] ; Open Research Subject of Key Laboratory (Research Base)[szjj2017-018] ; Fundamental Research Funds for the Central Universities[N170204011]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000454609700017
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130944
Collection中国科学院金属研究所
Corresponding AuthorPan, Hucheng; Qin, Gaowu
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China
2.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
3.Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
5.Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chongqing 401331, Peoples R China
6.Xihua Univ, Coll Mat Sci & Engn, Chengdu 610039, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Pan, Hucheng,Yang, Changlin,Yang, Yantao,et al. Ultra-fine grain size and exceptionally high strength in dilute Mg-Ca alloys achieved by conventional one-step extrusion[J]. MATERIALS LETTERS,2019,237:65-68.
APA Pan, Hucheng.,Yang, Changlin.,Yang, Yantao.,Dai, Yongqiang.,Zhou, Dengshan.,...&Qin, Gaowu.(2019).Ultra-fine grain size and exceptionally high strength in dilute Mg-Ca alloys achieved by conventional one-step extrusion.MATERIALS LETTERS,237,65-68.
MLA Pan, Hucheng,et al."Ultra-fine grain size and exceptionally high strength in dilute Mg-Ca alloys achieved by conventional one-step extrusion".MATERIALS LETTERS 237(2019):65-68.
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