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Formation of long-period stacking ordered phase only within grains in Mg-Gd-Y-Zn-Zr casting by friction stir processing
Q. Yang; B. L. Xiao; D. Wang; M. Y. Zheng; K. Wu; Z. Y. Ma
2013
Source PublicationJournal of Alloys and Compounds
ISSN0925-8388
Volume581Pages:585-589
AbstractFriction stir processing (FSP) was applied to Mg-Gd-Y-Zn-Zr casting, resulting in significant dissolution of large grain boundary eutectic beta-Mg3RE and long-period stacking ordered (LPSO) phases. A fine-grained structure with a grain size of similar to 2.4 mu m was developed in the FSP sample. Besides, fine LPSO lamellae with a width of similar to 5 to similar to 200 nm were distributed only within the grains in the FSP sample, which is different from that observed in both solution-treated and other plastically deformed counterparts. Formation of such special structure is attributed to the high temperature severe plastic deformation generated by FSP. The FSP Mg-Gd-Y-Zn-Zr exhibited high mechanical properties with a yield strength of similar to 345 MPa and an elongation of similar to 21.5%. This study provides an effective way for mechanical property optimization in LPSO-contained magnesium alloys. (C) 2013 Elsevier B.V. All rights reserved.
description.department[yang, q. ; xiao, b. l. ; wang, d. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zheng, m. y. ; wu, k.] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china. ; ma, zy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zyma@imr.ac.cn
KeywordFriction Stir Processing Magnesium Alloys Long-period Stacking Ordered Structure Mechanical Properties Solidified Mg97zn1y2 Alloy Mechanical-properties Magnesium Alloy Microstructure Strength Texture 14h Morphology Evolution Behavior
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71633
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Q. Yang,B. L. Xiao,D. Wang,et al. Formation of long-period stacking ordered phase only within grains in Mg-Gd-Y-Zn-Zr casting by friction stir processing[J]. Journal of Alloys and Compounds,2013,581:585-589.
APA Q. Yang,B. L. Xiao,D. Wang,M. Y. Zheng,K. Wu,&Z. Y. Ma.(2013).Formation of long-period stacking ordered phase only within grains in Mg-Gd-Y-Zn-Zr casting by friction stir processing.Journal of Alloys and Compounds,581,585-589.
MLA Q. Yang,et al."Formation of long-period stacking ordered phase only within grains in Mg-Gd-Y-Zn-Zr casting by friction stir processing".Journal of Alloys and Compounds 581(2013):585-589.
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