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Effect of post-weld aging treatment on the precipitation and mechanical behavior of Fe-Ni based alloy weldment
Chen, SH; Hu, HL; Zhao, MJ; Rong, LJ; Chen, SH (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2018-03-07
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
卷号718页码:363-370
摘要Precipitation and mechanical behavior of Fe-Ni based alloy weldment in the post-weld aging condition were investigated in the present work. Microstructural analysis showed that an inhomogeneous distribution of gamma' phase was present in the dendritic structure of fusion zone, exhibiting that gamma' phase were precipitated in the interdendritic region while a gamma' phase depletion zone was developed in the dendrite core. Cleavage of the dendritic-interdendritic boundaries could be found in the nail-head region by the combined effects of directional growth of dendrite and inhomogenous distribution of gamma' phase in the dendritic structure during tensile test. Distinct differences in the hydrogen embrittlement susceptibility between the dendrite core and the interdendritic region led to a higher sensitivity to cleavage cracking in the hydrogen-precharged weldment.; Precipitation and mechanical behavior of Fe-Ni based alloy weldment in the post-weld aging condition were investigated in the present work. Microstructural analysis showed that an inhomogeneous distribution of gamma' phase was present in the dendritic structure of fusion zone, exhibiting that gamma' phase were precipitated in the interdendritic region while a gamma' phase depletion zone was developed in the dendrite core. Cleavage of the dendritic-interdendritic boundaries could be found in the nail-head region by the combined effects of directional growth of dendrite and inhomogenous distribution of gamma' phase in the dendritic structure during tensile test. Distinct differences in the hydrogen embrittlement susceptibility between the dendrite core and the interdendritic region led to a higher sensitivity to cleavage cracking in the hydrogen-precharged weldment.
部门归属[chen, shenghu ; hu, honglei ; zhao, mingjiu ; rong, lijian] chinese acad sci, inst met res, key lab nucl mat & safety assessment, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
关键词Heat-affected-zone Liquid-film Migration Electron-beam Welds Solute Redistribution Fusion Zone Nickel-base Cracking Microstructure Susceptibility Solidification
学科领域Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79435
专题中国科学院金属研究所
通讯作者Chen, SH (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Chen, SH,Hu, HL,Zhao, MJ,et al. Effect of post-weld aging treatment on the precipitation and mechanical behavior of Fe-Ni based alloy weldment[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,718:363-370.
APA Chen, SH,Hu, HL,Zhao, MJ,Rong, LJ,&Chen, SH .(2018).Effect of post-weld aging treatment on the precipitation and mechanical behavior of Fe-Ni based alloy weldment.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,718,363-370.
MLA Chen, SH,et al."Effect of post-weld aging treatment on the precipitation and mechanical behavior of Fe-Ni based alloy weldment".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 718(2018):363-370.
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