IMR OpenIR
Microstructure and mechanical properties of Mg-7Zn-3Al alloy with Nd and Y additions
Alternative TitleMicrostructure and mechanical properties of Mg-7Zn-3Al alloy with Nd and Y additions
Luo Jinhua1; Qiu Kehui1; Wang Jie2; Dong Xuguang2; Li Fensheng1
2012
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume30Issue:5Pages:486-491
AbstractThe effects of combined addition of 0.6 wt.% Nd and 0.4 wt.% Y on the microstructure and mechanical properties of Mg-7Zn-3Al alloy were investigated. The results indicated that the Nd and Y addition led to obvious dendrite coarsening. However, it could modify the morphology and distribution of tau-Mg-32(Al,Zn)(49) intermetallics. Moreover, Al2REZn2 phase could be introduced into the alloy with the Nd and Y addition. With the effective second-phase strengthening, the ultimate tensile strength and elongation in as-cast state can be improved by the Nd and Y addition. After ageing treatment, the alloy with the Nd and Y addition exhibited better precipitation strengthening effects by forming finer MgZn2 and Mg-32(Al,Zn)(49) precipitates into the alpha-Mg matrix. As a result, the yield and ultimate strength of Mg-7Zn-3Al-0.6Nd-0.4Y alloy could be increased to 182 and 300 MPa by peak-ageing treatment.
Other AbstractThe effects of combined addition of 0.6 wt.% Nd and 0.4 wt.% Y on the microstructure and mechanical properties of Mg-7Zn-3Al alloy were investigated.The results indicated that the Nd and Y addition led to obvious dendrite coarsening.However,it could modify the morphology and distribution of-Mg_(32)(Al,Zn)_(49) intermetallics.Moreover,Al_2REZn_2 phase could be introduced into the alloy with the Nd and Y addition.With the effective second-phase strengthening,the ultimate tensile strength and elongation in as-cast state can be improved by the Nd and Y addition.After ageing treatment,the alloy with the Nd and Y addition exhibited better precipitation strengthening effects by forming finer MgZn_2 and Mg_(32)(Al,Zn)_(49) precipitates into the-Mg matrix.As a result,the yield and ultimate strength of Mg-7Zn3Al-0.6Nd-0.4Y alloy could be increased to 182 and 300 MPa by peak-ageing treatment.
KeywordZN-AL ALLOYS MAGNESIUM ALLOY BEHAVIOR CREEP Mg-7Zn-3Al alloy microstructure mechanical properties rare earths
Indexed ByCSCD
Language英语
CSCD IDCSCD:4557984
Citation statistics
Cited Times:8[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/153451
Collection中国科学院金属研究所
Affiliation1.Chengdu Univ Technol, Institute Mat Sci & Engn, Chengdu 610059, Peoples R China
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Luo Jinhua,Qiu Kehui,Wang Jie,et al. Microstructure and mechanical properties of Mg-7Zn-3Al alloy with Nd and Y additions[J]. JOURNAL OF RARE EARTHS,2012,30(5):486-491.
APA Luo Jinhua,Qiu Kehui,Wang Jie,Dong Xuguang,&Li Fensheng.(2012).Microstructure and mechanical properties of Mg-7Zn-3Al alloy with Nd and Y additions.JOURNAL OF RARE EARTHS,30(5),486-491.
MLA Luo Jinhua,et al."Microstructure and mechanical properties of Mg-7Zn-3Al alloy with Nd and Y additions".JOURNAL OF RARE EARTHS 30.5(2012):486-491.
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
[Luo Jinhua]'s Articles
[Qiu Kehui]'s Articles
[Wang Jie]'s Articles
Baidu academic
Similar articles in Baidu academic
[Luo Jinhua]'s Articles
[Qiu Kehui]'s Articles
[Wang Jie]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Luo Jinhua]'s Articles
[Qiu Kehui]'s Articles
[Wang Jie]'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.