Effect mechanism of dilution on solidification crack in ENiCrFe-7 buffering layer of deposited metal

doi:10.12073/j.hjxb.20200202001

	Effect mechanism of dilution on solidification crack in ENiCrFe-7 buffering layer of deposited metal
	Yan, Yingjie1 ; Zhang, Kaijia 1; Wang, Ruomeng 2; Jiang, Yong 2; Cao, Rui1 ; Chen, Jianhong1
	2020-07-25
发表期刊	Hanjie Xuebao/Transactions of the China Welding Institution
ISSN	0253360X
卷号	41 期号:7 页码:12-17
摘要	Larger size microcracks were found in the buffering layer when ENiCrFe-7 nickel-based welding material is used as filler metal to weld Q345B steel. Adopting optical microscope, scanning electron microscope and energy spectrometer were used to analyse the distribution, morphology, and precipitation of cracks and compared results with the the area where no crack occurs. The results show that cracks are only distributed in the buffering layer which adjacent to the base material, and the dilution rate, Fe content, and number of Nb-rich precipitates in the crack occurrence area are higher than those in the area where no crack occurs; The crack is typical solidification crack and precipitation phases rich in Nb and S elements exist on the crack surface; The low melting point phase rich in Nb and S is the main cause of solidification cracking of buffering layer. Copyright © 2020 Transactions of the China Welding Institution. All rights reserved.
关键词	Filler metals Microcracks Morphology Scanning electron microscopy Crack occurrences Effect mechanism Energy spectrometer Low-melting-point-phase Nb-rich precipitates Solidification cracking Solidification cracks Welding materials
DOI	10.12073/j.hjxb.20200202001
收录类别	EI
语种	中文
出版者	Harbin Research Institute of Welding
EI入藏号	20204409408315
EI主题词	Solidification
EI分类号	538.2 Welding ; 802.3 Chemical Operations ; 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150879
专题	材料科学与工程学院_特聘教授组材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.The State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Atlantic China Welding Consumables, INC., Zigong; 643000, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Yan, Yingjie,Zhang, Kaijia,Wang, Ruomeng,et al. Effect mechanism of dilution on solidification crack in ENiCrFe-7 buffering layer of deposited metal[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2020,41(7):12-17.
APA	Yan, Yingjie,Zhang, Kaijia,Wang, Ruomeng,Jiang, Yong,Cao, Rui,&Chen, Jianhong.(2020).Effect mechanism of dilution on solidification crack in ENiCrFe-7 buffering layer of deposited metal.Hanjie Xuebao/Transactions of the China Welding Institution,41(7),12-17.
MLA	Yan, Yingjie,et al."Effect mechanism of dilution on solidification crack in ENiCrFe-7 buffering layer of deposited metal".Hanjie Xuebao/Transactions of the China Welding Institution 41.7(2020):12-17.