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of diffusion layers were observed at the interface and the thicknesses of diffusion layers have increased with aging time as a result of the diffusion bonding. The interfaces were composed of 3-ply diffusion...]. It is crucial to improve the bonding strength of Cu/Al bar clad material by controlling the interface properties with post heat treatment. The aim of this work is to investigate the effect of diffusion layers......
the deformation ratio. A layer of yttrium oxide powder was laid between the specimens and the pressure bars to avoid bonding of them. Diffusion bonding was carried out in the vacuum furnace (Centorr-M60... of Technology, Harbin 150001, China Received 4 January 2010; accepted 12 April 2010 Abstract: Diffusion bonding of TC21 titanium alloy was carried out at temperature ranging from 780 °C to 980 °C......
is D=1.64×10-20 cm2/s at 200 ℃[15]. This diffusion is faster than that of Au in Cu because the Cu atom is smaller than the Au atom. It was found from some ultrasonic wire bonding investigations that temperature rise at the bonding interface was 80-300 ℃[16]. According to the Fick’s diffusion law, the thermal interdiffusion distance can be obtained from the following equation: X2=Dt, where t......
Diffusion Bonding of Al6061 and Cu by Hot Isostatic Pressing滕庆,LI Xiu,WEI QingsongState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Technology, Huazhong University of Science and Technology摘 要:Diffusion bonding between Al and Cu was successfully performed by hot isostatic pressing(HIP). To improve......
:Similar diffusion bonding of 1Cr11Ni2W2MoV stainless steel was conducted at different bonding temperatures. The interface characteristics and mechanical... was ascribed to the combined effects of plastic flow of materials around voids,interface diffusion and volume diffusion. Owing to the elimination of void from the bonding interface,the sound joint obtained......
materials bonding can be evaluated by ultrasonic method. Key words: non-destructive evaluation; ultrasonic testing; diffusion bonding; dissimilar material CLC number: TG115 Document code: A 1 INTRODUCTION Diffusion bonding is playing a very important role in precision welding, special materials joining, dissimilar materials joining and so on. It becomes an indispensable assembly......
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Superplasticity and Diffusion Bonding of Ti3AI Intermetallic CompoundsYi GUO Peng LIU Yiwen WU Zijing HE Dong LI Institute of Metal Research,Academia Sinica,Shenyang,110015,China摘 要:diffusion bonding technology and good joints were created,the simulatedspecimens were......
Diffusion Bonding of Ti-6Al-4V to QAl 10-3-1.5 with Ni/Cu InterlayersWei GUO, Xihua ZHAO, Minxia SONG, Jicai FENG and Biao YANG Key Laboratory of Automobile Materials (Jilin University), Ministry..., Harbin 150001, China摘 要:<正>Ti-6Al-4V and QAl 10-3-1.5 diffusion bonding has been carried out with Ni/Cu interlayers. The diffusion-bonded joints......
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