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Development of dilute Mg-Zn-Ca-Mn alloy with high performance via extrusion
Jiang, M. G.; Xu, C.; Nakata, T.; Yan, H.; Chen, R. S.; Kamado, S.; hyan@imr.ac.cn; rschen@imr.ac.cn
2016
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume668Pages:13-21
AbstractDilute Mg-0.21Zn-0.30Ca-0.14Mn (wt.%) alloy was newly developed as low-cost wrought Mg alloy. Excellent balance of strength and ductility was achieved via extrusion process by grain refinement and texture modification. The dilute alloy extruded at 300 degrees C exhibited a tensile yield strength of 307 MPa and an elongation of 20.6% due to a bimodal microstructure consisting of fine dynamically recrystallized (DRXed) grains of similar to 2.3 mm and strongly textured coarse unDRXed grains. After extrusion at 350 degrees C, almost fully DRXed microstructure (DRX fraction of similar to 0.96) and significantly weakened basal texture (maximum intensity of 3.2) with rare-earth texture component were achieved, consequently resulting in a high compression/tension yield ratio of similar to 0.8 with tensile elongation of 30.0% and tensile yield strength of 164 MPa. Besides, fine spherical Mg2Ca and alpha-Mn phases dynamically precipitated during extrusion, acting as effective pinning obstacles against the DRXed grain growth. (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
KeywordMg-zn-ca-mn Alloy Extrusion Microstructure Texture Mechanical Properties
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/321006/74718
Collection中国科学院金属研究所
Corresponding Authorhyan@imr.ac.cn; rschen@imr.ac.cn
Recommended Citation
GB/T 7714
Jiang, M. G.,Xu, C.,Nakata, T.,et al. Development of dilute Mg-Zn-Ca-Mn alloy with high performance via extrusion[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,668:13-21.
APA Jiang, M. G..,Xu, C..,Nakata, T..,Yan, H..,Chen, R. S..,...&rschen@imr.ac.cn.(2016).Development of dilute Mg-Zn-Ca-Mn alloy with high performance via extrusion.JOURNAL OF ALLOYS AND COMPOUNDS,668,13-21.
MLA Jiang, M. G.,et al."Development of dilute Mg-Zn-Ca-Mn alloy with high performance via extrusion".JOURNAL OF ALLOYS AND COMPOUNDS 668(2016):13-21.
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