Effect of temperature on the tensile deformation behavior and fracture mechanism of a transient liquid-phase bonding joint of gamma'-strengthened Co-based single-crystal superalloy

doi:10.1007/s10853-022-07351-0

IMR OpenIR

	Effect of temperature on the tensile deformation behavior and fracture mechanism of a transient liquid-phase bonding joint of gamma'-strengthened Co-based single-crystal superalloy
	Wang, S. Y.1; Hou, X. Y.1; Cheng, Y.1,2; Sun, Y.1; Yang, Y. H.1; Li, J. G.1; Zhang, H. W.1; Zhou, Y. Z.1
通讯作者	Wang, S. Y.(sywang16b@imr.ac.cn) ; Sun, Y.(yuansun@imr.ac.cn)
	2022-06-21
发表期刊	JOURNAL OF MATERIALS SCIENCE
ISSN	0022-2461
页码	22
摘要	Tensile behavior at different deformation temperature of a transient liquidphase (TLP) bonded joint of gamma'-strengthened Co-based superalloy was investigated. A temperature dependence phenomenon of the joint's fracture position was found, which transferred from the base metal to the bonding area with increase in the temperature, and this is related to the deformation mechanism. At room temperature, dislocation shearing the gamma' phases in different areas of the joint domains the deformation and makes it heterogeneous, and more deformation has occurred at the BM because of lower content of gamma' phase, which makes the failure occurred at the BM. The deformation mechanism gradually transferred from dislocation shearing to bypassing the gamma' with increasing the temperature, making the deformation become diffused, and this can lead to the fracture of the joint's brittle borides, and the coalescence of the boride-induced cracks makes the fracture occur at the diffusion affect zone at 600 degrees C similar to 900 degrees C. As the secondary-gamma' in the joint's isothermal solidification zone dissolves at 1000 degrees C, more deformation occurs there and the accumulation of micro-voids induced by the dislocation climbing leads to the fracture.
资助者	National Natural Science Foundation of China ; Key Specialized Research and Development Breakthrough-unveiling and commanding the special project program in Liaoning province
DOI	10.1007/s10853-022-07351-0
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[2021YFB3700401] ; Key Specialized Research and Development Breakthrough-unveiling and commanding the special project program in Liaoning province[2021JH15]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000814034900003
出版者	SPRINGER
引用统计	被引频次：6[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/321006/174685
专题	中国科学院金属研究所
通讯作者	Wang, S. Y.; Sun, Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 JinZhai Rd, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wang, S. Y.,Hou, X. Y.,Cheng, Y.,et al. Effect of temperature on the tensile deformation behavior and fracture mechanism of a transient liquid-phase bonding joint of gamma'-strengthened Co-based single-crystal superalloy[J]. JOURNAL OF MATERIALS SCIENCE,2022:22.
APA	Wang, S. Y..,Hou, X. Y..,Cheng, Y..,Sun, Y..,Yang, Y. H..,...&Zhou, Y. Z..(2022).Effect of temperature on the tensile deformation behavior and fracture mechanism of a transient liquid-phase bonding joint of gamma'-strengthened Co-based single-crystal superalloy.JOURNAL OF MATERIALS SCIENCE,22.
MLA	Wang, S. Y.,et al."Effect of temperature on the tensile deformation behavior and fracture mechanism of a transient liquid-phase bonding joint of gamma'-strengthened Co-based single-crystal superalloy".JOURNAL OF MATERIALS SCIENCE (2022):22.