IMR OpenIR
Microstructural evolution and mechanical properties of a Mg-Gd-Y alloy processed by impact forging
Shah, S. S. A.; Wu, D.; Wang, W. H.; Chen, R. S.; Wu, D; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wenhui Rd, Shenyang 110016, Liaoning, Peoples R China.
2017-08-15
Source PublicationELSEVIER SCIENCE SA
ISSN0921-5093
Volume702Pages:153-160
AbstractA multi-direction impact forging (MDIF) has been applied to a solutionized Mg-Gd-Y-Zr alloy in this work. An inhomogeneous microstructure, mostly fine grains, some twins and a few of coarse deformed grains were achieved with a weak and non-basal texture after 50 forging passes. Due to retarded DRX behavior by RE solute drag effect and the sharp drop of forging temperature, the alloy did not obtain a full DRX microstructure until 100 forging passes. During MDIF process, density of extension twins initially were induced in microstructure, which effectively refined the coarse grains by dividing and intersecting each other. In turn, those twining regions provided nucleation sites for DRX, and a continuous dynamic recrystallization converted most of the twin-matrix laminates to fine equi-axial grains. The ultimate tensile strength and elongation to failure of GW94 alloy were continuously improved during MDIF process, from less than 200 MPa and 2% of the initial solutionized specimen to more than 300 MPa and 7% of the one by 50 forging passes respectively.; A multi-direction impact forging (MDIF) has been applied to a solutionized Mg-Gd-Y-Zr alloy in this work. An inhomogeneous microstructure, mostly fine grains, some twins and a few of coarse deformed grains were achieved with a weak and non-basal texture after 50 forging passes. Due to retarded DRX behavior by RE solute drag effect and the sharp drop of forging temperature, the alloy did not obtain a full DRX microstructure until 100 forging passes. During MDIF process, density of extension twins initially were induced in microstructure, which effectively refined the coarse grains by dividing and intersecting each other. In turn, those twining regions provided nucleation sites for DRX, and a continuous dynamic recrystallization converted most of the twin-matrix laminates to fine equi-axial grains. The ultimate tensile strength and elongation to failure of GW94 alloy were continuously improved during MDIF process, from less than 200 MPa and 2% of the initial solutionized specimen to more than 300 MPa and 7% of the one by 50 forging passes respectively.
description.department[shah, s. s. a. ; wu, d. ; wang, w. h. ; chen, r. s.] chinese acad sci, inst met res, grp magnesium alloys & their applicat, 62 wenhui rd, shenyang 110016, liaoning, peoples r china ; [shah, s. s. a.] univ chinese acad sci, 19 yuquan rd, beijing 100049, peoples r china
KeywordMagnesium Alloys Forging Twinning Dynamic Recrystallization Grain Refinement Mechanical Properties
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationState Key Program of National Natural Science Foundation of China [51531002]; National Natural Science Foundation of China (NSFC) [51601193, 51301173]; National Key Research and Development Program of China [2016YFB0301104]; National Basic Research Program of China (973 Program) [2013CB632202]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79148
Collection中国科学院金属研究所
Corresponding AuthorWu, D; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wenhui Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Shah, S. S. A.,Wu, D.,Wang, W. H.,et al. Microstructural evolution and mechanical properties of a Mg-Gd-Y alloy processed by impact forging[J]. ELSEVIER SCIENCE SA,2017,702:153-160.
APA Shah, S. S. A.,Wu, D.,Wang, W. H.,Chen, R. S.,Wu, D,&Chen, RS .(2017).Microstructural evolution and mechanical properties of a Mg-Gd-Y alloy processed by impact forging.ELSEVIER SCIENCE SA,702,153-160.
MLA Shah, S. S. A.,et al."Microstructural evolution and mechanical properties of a Mg-Gd-Y alloy processed by impact forging".ELSEVIER SCIENCE SA 702(2017):153-160.
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
[Shah, S. S. A.]'s Articles
[Wu, D.]'s Articles
[Wang, W. H.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shah, S. S. A.]'s Articles
[Wu, D.]'s Articles
[Wang, W. H.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shah, S. S. A.]'s Articles
[Wu, D.]'s Articles
[Wang, W. H.]'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.