Microstructure and mechanical property of the fusion boundary region in an Alloy 182-low alloy steel dissimilar weld joint

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	Microstructure and mechanical property of the fusion boundary region in an Alloy 182-low alloy steel dissimilar weld joint
	J. Hou; Q. J. Peng; Y. Takeda; J. Kuniya; T. Shoji; J. Q. Wang; E. H. Han; W. Ke
	2010
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	45 期号:19 页码:5332-5338
摘要	Characterizations of the microstructure and mechanical property of the fusion boundary region of an Alloy 182-A533B low alloy steel (LAS) dissimilar weld joint were conducted. The existence of type-II boundary that parallels to the fusion boundary in the dilution zone (DZ) of Alloy 182 within a distance of about 50 mu m was observed. The chemical composition transition was found in the narrow zone between the type-II and the fusion boundaries. Highest hardness was also found in this narrow zone in the fusion boundary region, implying a high residual strain level in the narrow zone. Lath martensite was observed in both sides of the type-II boundary in DZ, suggesting the localized enrichment of Fe and C adjacent to the type-II boundary due to the diffusion from LAS to DZ. Massive precipitations of carbides were observed on the type-II boundary but not on the fusion boundary. In addition, the orientation relationship at the fusion boundary between the lath martensite in the heat-affected zone in LAS and the austenite in the DZ was found to be Bain, K-S and N-W relationships.
部门归属	[hou, j.; peng, q. j.; takeda, y.; kuniya, j.; shoji, t.] tohoku univ, fracture & reliabil res inst, grad sch engn, aoba ku, sendai, miyagi 9808579, japan. [hou, j.; wang, j. q.; han, e. -h.; ke, w.] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;peng, qj (reprint author), tohoku univ, fracture & reliabil res inst, grad sch engn, aoba ku, 6-6-01 aramaki aoba, sendai, miyagi 9808579, japan;qpeng@rift.mech.tohoku.ac.jp
关键词	Low-carbon Steels Lath Martensite Metal Welds Morphology Crystallography Evolution
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WOS记录号	WOS:000280597600026
引用统计	被引频次：66[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31149
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Hou,Q. J. Peng,Y. Takeda,et al. Microstructure and mechanical property of the fusion boundary region in an Alloy 182-low alloy steel dissimilar weld joint[J]. Journal of Materials Science,2010,45(19):5332-5338.
APA	J. Hou.,Q. J. Peng.,Y. Takeda.,J. Kuniya.,T. Shoji.,...&W. Ke.(2010).Microstructure and mechanical property of the fusion boundary region in an Alloy 182-low alloy steel dissimilar weld joint.Journal of Materials Science,45(19),5332-5338.
MLA	J. Hou,et al."Microstructure and mechanical property of the fusion boundary region in an Alloy 182-low alloy steel dissimilar weld joint".Journal of Materials Science 45.19(2010):5332-5338.