Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism

doi:10.11900/0412.1961.2020.00493

IMR OpenIR

	Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism
	Ren Shaofei 1,2; Zhang Jianyang 2; Zhang Xinfang 1; Sun Mingyue 2,3; Xu Bin 2,3; Cui Chuanyong 4
通讯作者	Zhang Xinfang(xfzhang@ustb.edu.cn) ; Sun Mingyue(mysun@imr.ac.cn)
	2022-02-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	58 期号:2 页码:129-140
摘要	Superalloys with excellent high-temperature resistance and oxidation resistance have been widely used in aviation and energy fields. The new Ni-Co base superalloy is considered a candidate for the next generation of turbine discs due to its higher performance of mechanical properties and microstructure stability at high temperatures. However, tungsten inert gas (TIG) welding, metal inert gas (MIG) welding, and other welding techniques are not suitable for welding the new Ni-Co base superalloy because the Al + Ti content of the alloy reaches 7.5%, while traditional welding techniques (electron beam welding, friction welding, and diffusion welding) also have some disadvantages. For example, friction welding has certain requirements on the shape of the sample, and it is not suitable for welding largevolume alloys. Diffusion welding requires a long heat retention period and a harmful precipitation phase exists at the interface. A new welding method is applied in this study to solve the problem of welding nickel-based superalloy, achieving a better bonding effect. The Gleeble 3500 thermal simulator was used to study the plastic deformation bonding of Ni-Co base superalloys in a temperature range of 1000-1200 degrees C and a strain range of 5%-40% with a strain rate of 0.001 s(-1). The recrystallization behavior of the interface was studied by OM, EBSD, and TEM, and the bonding mechanism of the interface was clarified. The results showed that the resistance to deformation of the alloy was low when the plastic deformation bonding was performed at 1150 degrees C, and there was no risk of cracking of the alloy. Plastic deformation bonding experiments with different deformations had shown that the alloy can achieve complete bonding of the interface under the condition of 40% deformation, and its mechanical properties can reach the same level as the matrix. The tensile fracture analysis showed that the fracture profile of the 40% deformed joint was consistent with the base material, showing a ductile fracture pattern. The results of EBSD and TEM showed that the coarse grains near the interface were first refined during the plastic deformation. With the increase of deformation, the refined grain removed the original interface by the migration of the interfacial grain boundaries with the assistance of a continuous dynamics recrystallization process and ultimately led to the bonding of the interface.
关键词	Ni-Co base superalloy plastic deformation bonding dynamic recrystallization
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Program of CAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS
DOI	10.11900/0412.1961.2020.00493
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFA0702900] ; National Natural Science Foundation of China[51774265] ; National Natural Science Foundation of China[51874023] ; National Science and Technology Major Project of China[2019ZX06004010] ; Program of CAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000750160800001
出版者	SCIENCE PRESS
引用统计	被引频次：5[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/321006/173519
专题	中国科学院金属研究所
通讯作者	Zhang Xinfang; Sun Mingyue
作者单位	1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ren Shaofei,Zhang Jianyang,Zhang Xinfang,et al. Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism[J]. ACTA METALLURGICA SINICA,2022,58(2):129-140.
APA	Ren Shaofei,Zhang Jianyang,Zhang Xinfang,Sun Mingyue,Xu Bin,&Cui Chuanyong.(2022).Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism.ACTA METALLURGICA SINICA,58(2),129-140.
MLA	Ren Shaofei,et al."Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism".ACTA METALLURGICA SINICA 58.2(2022):129-140.