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

doi:10.12073/j.hjxb.20200202001

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	Effect mechanism of dilution on solidification crack in ENiCrFe-7 buffering layer of deposited metal
	Yan, Yingjie 2; Zhang, Kaijia 2; Wang, Ruomeng 1; Jiang, Yong 1; Cao, Rui 2; Chen, Jianhong 2
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2020-07-25
卷号	41 期号:7 页码:12-17
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
ISSN号	0253360X
DOI	10.12073/j.hjxb.20200202001
英文摘要	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.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150879]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.Atlantic China Welding Consumables, INC., Zigong; 643000, China 2.The State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
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.