Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications

doi:10.1007/s40194-024-01826-1

IMR OpenIR

	Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications
	Shen, Yuanxun 1; Li, Yunyue 1; Sheng, Lanbing 1; Liang, Yiming 1; Hao, Chuanyong 2; She, Chun 1
通讯作者	Shen, Yuanxun(shenyuanxun@126.com)
	2024-08-27
发表期刊	WELDING IN THE WORLD
ISSN	0043-2288
页码	8
摘要	In this paper, the brazing of high-reliability C/C composite-metal joints for high-temperature application was studied. The surface of C/C composites was modified by the Cr metallization process and then brazed to Ni-based superalloy by AgPd braze. Alumina block was used as interlayer, and a zig-zag interfacial structure was constructed at the composites/braze interface. The results show that, after the metallization process, a strong adhesion reaction layer consisting of Cr carbides was coated on the C/C surface which in turn obviously improved the wettability of braze. The molted braze filled completely into the laser-machined holes in the C/C substrate and well-bonded interfaces and a homogeneous Ag(Pd) solution microstructure were obtained in the joint. The strength of the joint with C/C metalized at 1100 degree celsius is higher than that of the joint with 1300 degree celsius. The joints exhibit very high bending strength of up to 82 MPa and shear strength of up to 54 MPa, respectively. The braze spikes increase the connection area and provide a strong pinning effect.
关键词	C/C composites Ni-based superalloy Cr metallization process Brazing Microstructure Mechanical properties
资助者	Henan Province Science and Technology Innovation Talent Program
DOI	10.1007/s40194-024-01826-1
收录类别	SCI
语种	英语
资助项目	Henan Province Science and Technology Innovation Talent Program
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001298757300001
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：1[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/321006/189489
专题	中国科学院金属研究所
通讯作者	Shen, Yuanxun
作者单位	1.Zhengzhou Res Inst Mech Engn Co LTD, State Key Lab Adv Brazing Filler Met & Technol, Zhengzhou 450001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shen, Yuanxun,Li, Yunyue,Sheng, Lanbing,et al. Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications[J]. WELDING IN THE WORLD,2024:8.
APA	Shen, Yuanxun,Li, Yunyue,Sheng, Lanbing,Liang, Yiming,Hao, Chuanyong,&She, Chun.(2024).Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications.WELDING IN THE WORLD,8.
MLA	Shen, Yuanxun,et al."Microstructure and mechanical properties of C/C composites/Ni superalloy dissimilar brazed joint for high-temperature applications".WELDING IN THE WORLD (2024):8.