IMR OpenIR
Realizing ultra-fine grains and ultra-high strength in conventionally extruded Mg-Ca-Al-Zn-Mn alloys: The multiple roles of nano-precipitations
Li, Man1; Xie, Dongsheng1; Li, Jingren1; Xie, Hongbo1; Huang, Qiuyan2; Pan, Hucheng1; Qin, Gaowu1
Corresponding AuthorPan, Hucheng(panhc@atm.neu.edu.cn)
2021-05-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume175Pages:7
AbstractAn ultra-high strength and low-cost magnesium wrought alloy, Mg-1Ca-1Al-0.3Zn-0.4Mn (wt%), has been fabricated by conventional extrusion, with yield strength of -435 MPa, the ultimate tensile strength of -449 MPa and the elongation of -4.2%. Mono-dispersive nano-precipitations, e.g., the Al2Ca phase and AlMn phase, have been induced during extrusion, which can effectively pin pyramidal dislocation motions in grain interiors and thus provide substantial nucleation sites for dynamic recrystallization in present Ca-containing Mg alloys. Simultaneously, these fine-precipitates distributing at the new grain boundaries can prevent their growths, which thus guarantee the ultra-fine grains formation (300?500 nm). After heat treatment, a higher number density of nano Al2Ca and AlMn phases can be further precipitated, which results in the alloy still maintaining the ultrahigh strength of -444 MPa. The multiple roles of the same nano-precipitations in both promoting the ultrafine grains formation and affording precipitation hardening have been clarified in present Mg wrought alloy.
KeywordWrought magnesium alloy Dynamic recrystallization Microstructure evolution Ultra-high strength Precipitation
Funding OrganizationNational Natural Science Foundation of China ; Project of Promoting Talents in Liaoning province ; Young Elite Scientists Sponsorship Program by CAST ; Fundamental Research Funds for the Central Universities ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science
DOI10.1016/j.matchar.2021.111049
Indexed BySCI
Languageen
Funding ProjectNational Natural Science Foundation of China[51701211] ; National Natural Science Foundation of China[51971053] ; Project of Promoting Talents in Liaoning province[XLYC1808038] ; Young Elite Scientists Sponsorship Program by CAST[20192021QNRC001] ; Young Elite Scientists Sponsorship Program by CAST[20192021QNRC002] ; Fundamental Research Funds for the Central Universities[N2002011] ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science[2019JH3/30100040]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000647775400003
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161160
Collection中国科学院金属研究所
Corresponding AuthorPan, Hucheng
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, Man,Xie, Dongsheng,Li, Jingren,et al. Realizing ultra-fine grains and ultra-high strength in conventionally extruded Mg-Ca-Al-Zn-Mn alloys: The multiple roles of nano-precipitations[J]. MATERIALS CHARACTERIZATION,2021,175:7.
APA Li, Man.,Xie, Dongsheng.,Li, Jingren.,Xie, Hongbo.,Huang, Qiuyan.,...&Qin, Gaowu.(2021).Realizing ultra-fine grains and ultra-high strength in conventionally extruded Mg-Ca-Al-Zn-Mn alloys: The multiple roles of nano-precipitations.MATERIALS CHARACTERIZATION,175,7.
MLA Li, Man,et al."Realizing ultra-fine grains and ultra-high strength in conventionally extruded Mg-Ca-Al-Zn-Mn alloys: The multiple roles of nano-precipitations".MATERIALS CHARACTERIZATION 175(2021):7.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Man]'s Articles
[Xie, Dongsheng]'s Articles
[Li, Jingren]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Man]'s Articles
[Xie, Dongsheng]'s Articles
[Li, Jingren]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Man]'s Articles
[Xie, Dongsheng]'s Articles
[Li, Jingren]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.