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by diffusion welding[3-4], vacuum brazing[5-6], friction welding[7] and explosion welding[8]. However, above welding methods are restricted by joint configuration or vacuum condition. In additional, low... and tensile strength of the joints can exceed that of most Al alloys[9-10]. Compared with brazing and diffusion-bonding, complex metallurgical reaction and diffusion process of elements appear due to fast......
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Characterization,Removal and Evaluation of Oxide Film in the Diffusion Bonding of Zr55Cu30Ni5Al10 Bulk Metallic GlassHaiyan Chen1,Jian Cao1,Xiaoguo Song2,Jiakun Liu1,Jicai Feng1,21. State Key Lab... is the dominant barrier on the diffusion bonding of bulk metallic glass rather than low atomic diffusion coefficient.关键词:......
borides and the grain size of precipitation zone decrease. Higher bonding temperature or longer bonding time is beneficial to the diffusion of melting point depressant elements (B and Si) from the PZ... for TLP bonding. Table 1 Chemical composition and solidus/liquidus temperature of GH99 alloy and BNi-2 interlayer The TLP bonding operation was carried out in a vacuum furnace (10-4 Pa). Coupons were......
结合 中图分类号:TB331 文献标志码:A Kinetics analysis of liquid phase diffusion bonding between Cu and Al ZHANG Jian-yu1, BEN Li-hua2, CHU Di2, WU Chun-jing2 (1. School of Mechanical...) Abstract: In order to improve the metallurgical bonding in Cu/Al composites, the mathematical model of isothermal reactive diffusion between Cu and Al in the temperature range between eutectic......
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profiles in diffusion zone have been conducted. The effect of the vacuum level during the process and the process parameters such as time and temperature on layer diffusion growth on the carbon steel... of chromium on the surface of carbon steel has been investigated using a novel CVD method that combines the low cost of pack cementation method with advantages of vacuum technique. The processes have been......
2016 Abstract: Vacuum thermal diffusion technique was applied to preparing alloying coating on AZ31B magnesium alloy. The microstructure and phase composition of the coatings prepared at different... of the coatings increased by 113% in comparison to the substrate, and the self-corrosion potential increased from -1.389 to -1.268 V at the same time. Key words: AZ31B magnesium alloy; vacuum diffusion; surface......