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Rare earth texture and improved ductility in a Mg-Zn-Gd alloy after high-speed extrusion
Jiang, M. G.; Xu, C.; Nakata, T.; Yan, H.; Chen, R. S.; Kamado, S.; Yan, H; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wencui Rd, Shenyang 110016, Peoples R China.
2016-06-14
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume667Pages:233-239
AbstractMg-1.58Zn-0.52Gd (wt%) alloy was successfully extruded at high extrusion speed of 60 m/min, suggesting the much better extrudability than commercial AZ31 alloy. After high-speed extrusion (die-exit speed >= 24 m/min), the Mg-Zn-Gd alloy exhibited a fully recrystallized microstructure with fine Mg3Zn3Gd2 phase at grain boundaries (GBs) and within grain interiors and rare earth (RE) texture at the position between [2 (1) over bar(1) over bar4] and [2 (1) over bar(1) over bar2] parallel to the extrusion direction. The RE texture favored the operation of both basal slip and {10 (1) over bar2} extension twins, thus leading to a highly improved ductility of similar to 30%, which was twice than that of the AZ31 alloy. It is hypothesized that the segregation of Gd solutes at GBs greatly influences the recrystallization behavior and thus contributes to the formation of RE texture. (c) 2016 Elsevier B.V. All rights reserved.
description.department[jiang, m. g. ; yan, h. ; chen, r. s.] chinese acad sci, inst met res, grp magnesium alloys & their applicat, 62 wencui rd, shenyang 110016, peoples r china ; [jiang, m. g.] univ chinese acad sci, 19 yuquan rd, beijing 100049, peoples r china ; [xu, c. ; nakata, t. ; kamado, s.] nagaoka univ technol, dept mech engn, nagaoka, niigata 9402188, japan
KeywordMagnesium Alloy Extrusion Texture Ductility Rare Earth
Subject AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
Funding OrganizationState Key Program of National Natural Science of China [51531002]; National Basic Research Program of China (973 Program) [2013CB632202]; National Natural Science Foundation of China (NSFC) [51301173]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75829
Collection中国科学院金属研究所
Corresponding AuthorYan, H; Chen, RS (reprint author), Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wencui Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Jiang, M. G.,Xu, C.,Nakata, T.,et al. Rare earth texture and improved ductility in a Mg-Zn-Gd alloy after high-speed extrusion[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,667:233-239.
APA Jiang, M. G..,Xu, C..,Nakata, T..,Yan, H..,Chen, R. S..,...&Chen, RS .(2016).Rare earth texture and improved ductility in a Mg-Zn-Gd alloy after high-speed extrusion.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,667,233-239.
MLA Jiang, M. G.,et al."Rare earth texture and improved ductility in a Mg-Zn-Gd alloy after high-speed extrusion".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 667(2016):233-239.
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