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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    Special 1    November 2007

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HIP diffusion bonding of P/M titanium alloy Ti-6Al-4V
and stainless steel 1Cr18Ni9Ti
LANG Ze-bao(郎泽保), WANG Liang(王  亮), ZHANG Xu-hu(张绪虎)

Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China

Abstract:The HIP diffusion bonding of P/M titanium alloy Ti-6Al-4V and stainless steel 1Cr18Ni9Ti using pure Ni as intermediate layer was studied. Bonding joint with complex bonding interface was obtained by HIPing pre-alloyed Ti-6Al-4V powders and stainless steel 1Cr18Ni9Ti in a vacuum canning. The joint strengths were examined and the characteristics of bonding joint were observed. The result shows that the maximized strength of HIP diffusion bonding between P/M titanium alloy Ti-6Al-4V and stainless steel 1Cr18Ni9Ti can be up to 388 MPa and the microstructure of bonding joint is acceptable.

 

Key words: Ti-6Al-4V; 1Cr18Ni9Ti; HIP diffusion bonding; stainless steel; titanium alloy; powder metallurgy

ISSN 1672-7029
CN 43-1423/U

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