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Evolution of the Microstructure and Strength in the Nugget Zone of Friction Stir Welded SiCp/Al-Cu-Mg Composite
D. Wang; B. L. Xiao; Q. Z. Wang; Z. Y. Ma
2014
Source PublicationJournal of Materials Science & Technology
ISSN1005-0302
Volume30Issue:1Pages:54-60
AbstractA 6 mm-thick SiCp/2009Al composite plate was successfully joined by friction stir welding (FSW) using an ultra-hard material tool to investigate the evolution of the microstructure and the strength in the nugget zone (NZ). While some SiC particles were broken up during FSW, most of them rotated in the matrix. Large compound particles on the interfaces were broken off during FSW, whereas the amorphous layer and small compound particles remained on the interfaces. The dynamically recrystallized Al grains nucleated on the surface of fractured SiC particles during FSW, forming nano-sized grains around the SiC particles. The yield strength of the NZ decreased slightly due to the variation in the size, shape, and distribution of the SiC particles. The clean interfaces were beneficial to the load transfer between SiC particles and Al matrix and then increased the ultimate tensile strength of the NZ.
description.department[wang, d. ; xiao, b. l. ; wang, q. z. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wang, d.] univ sci & technol china, hefei 230026, peoples r china. ; xiao, bl (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; blxiao@imr.ac.cn
KeywordMetal-matrix Composites Friction Stir Welding Microstructure Mechanical Properties Metal-matrix Composites Aluminum-alloy Composite Sic/al Composite Mechanical-properties Interface Structure Welding Parameters Powder-metallurgy Tensile Property Behavior
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72363
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
D. Wang,B. L. Xiao,Q. Z. Wang,et al. Evolution of the Microstructure and Strength in the Nugget Zone of Friction Stir Welded SiCp/Al-Cu-Mg Composite[J]. Journal of Materials Science & Technology,2014,30(1):54-60.
APA D. Wang,B. L. Xiao,Q. Z. Wang,&Z. Y. Ma.(2014).Evolution of the Microstructure and Strength in the Nugget Zone of Friction Stir Welded SiCp/Al-Cu-Mg Composite.Journal of Materials Science & Technology,30(1),54-60.
MLA D. Wang,et al."Evolution of the Microstructure and Strength in the Nugget Zone of Friction Stir Welded SiCp/Al-Cu-Mg Composite".Journal of Materials Science & Technology 30.1(2014):54-60.
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