Interfacial reaction and mechanical properties of diffusion bonded titanium/17-4 PH stainless steel dissimilar joint using a silver interlayer

被引：2
|
作者：
Feng, Bo [1 ,2 ,4 ]
Deng, Yongqiang [3 ]
Feng, Xiaowei [1 ]
Wang, Juan [1 ,2 ]
Zheng, Kaihong [1 ,2 ]
机构：
[1] Guangdong Acad Sci, Inst Mat & Proc, Guangzhou 510650, Peoples R China
[2] Guangdong Key Lab Met Toughening Technol & Applic, Guangzhou 510650, Peoples R China
[3] Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[4] Henan Univ Sci & Technol, Natl Joint Engn Res Ctr Abras Control & Molding M, Luoyang 471000, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2020年 / 7卷 / 11期
基金：
中国国家自然科学基金;
关键词：
titanium; stainless steel; dissimilar joining; silver interlayer; interfacial reaction; STRENGTH PROPERTIES; PURE TITANIUM; MICROSTRUCTURE; NICKEL; TI-6AL-4V; TEMPERATURE; EVOLUTION; PHASES; COPPER;
D O I：
10.1088/2053-1591/abc910
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diffusion bonding of titanium (Ti) to 17-4 PH high strength stainless steel is challenging owing to the formation of brittle Ti-Fe intermetallic compounds (IMCs) at joint interface. In the current study, it was demonstrated that such detrimental Ti-Fe IMCs can be effectively eradicated by using a silver (Ag) interlayer. The diffusion bonded Ti/Ag/17-4 PH stainless steel is characterized by Ti-Ag solid solution, TiAg, remnant Ag interlayer and Ag-(Fe, Cr, Ni) interdiffusion layer. The interfacial reaction phase TiAg exhibited no detrimental effect on bonding strength. During tensile test, ductile fracture took place in the remaining Ag interlayer of resultant joint. Bonding strength up to similar to 420 MPa was obtained over bonding durations in the range of 15 similar to 25 min. It is thus concluded that using an Ag interlayer is highly appealing in improving bonding strength of diffusion bonded Ti/17-4 PH stainless steel dissimilar joint.
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页数：9
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