Welding Crack of Ni-Based Alloys: A Review

doi:10.11900/0412.1961.2020.00200

	Welding Crack of Ni-Based Alloys: A Review
	Yu Lei 1,2; Cao Rui1,2
	2021-01-11
发表期刊	Jinshu Xuebao/Acta Metallurgica Sinica
ISSN	04121961
卷号	57 期号:1 页码:16-28
摘要	Recently, Ni-based weldments have been widely used in various industries, including aerospace, nuclear power, thermal power, and petrochemicals. In this paper, the classification and welding methods of Ni-based alloys are introduced. Fusion welding methods were mainly used for the welding of Ni-based alloys because of cost and technical limitations. The mechanism of welding cracks in Ni-based alloys and the effects of various elements on cracks are mainly reviewed. Solidification cracking, liquation cracking, ductility-dip cracking, and strain-age cracking frequently occurred in fusion welding processes. The appearance of a low-melting liquid film has been found to be the main reason for the relative clarity of the mechanisms of solidification cracking and liquation cracking. Ductility-dip cracking is still not clearly defined, and its mechanism in Ni-based alloys remains obscure. Strain-age cracking of Ni-based alloys is unique to precipitation-strengthened-Ni-based alloys and closely related to the precipitation rate. Though much research has been done, impurities and addition of elements have a major effect on welding cracks of Ni-based alloys. Therefore, the influence of most elements alone and the synergistic effects on cracks need further study. © 2021, Science Press. All right reserved.
关键词	Aerospace industry Ductility Liquid films Nuclear fuels Precipitation (chemical) Solidification Welding Ductility-dip cracking Liquation cracking Precipitation rates Solidification cracking Strain-age cracking Synergistic effect Technical limitations Welding method
DOI	10.11900/0412.1961.2020.00200
收录类别	EI ; SCIE
语种	中文
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000624917400002
出版者	Chinese Academy of Sciences
EI入藏号	20210309770888
EI主题词	Nickel alloys
EI分类号	538.2 Welding - 548.2 Nickel Alloys - 802.3 Chemical Operations - 951 Materials Science
来源库	Compendex
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/147216
专题	材料科学与工程学院
通讯作者	Yu Lei
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous M, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
第一作者单位	兰州理工大学; 材料科学与工程学院
通讯作者单位	兰州理工大学; 材料科学与工程学院
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Yu Lei,Cao Rui. Welding Crack of Ni-Based Alloys: A Review[J]. Jinshu Xuebao/Acta Metallurgica Sinica,2021,57(1):16-28.
APA	Yu Lei,&Cao Rui.(2021).Welding Crack of Ni-Based Alloys: A Review.Jinshu Xuebao/Acta Metallurgica Sinica,57(1),16-28.
MLA	Yu Lei,et al."Welding Crack of Ni-Based Alloys: A Review".Jinshu Xuebao/Acta Metallurgica Sinica 57.1(2021):16-28.

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