Morphology and reaction kinetics of the interface phase formed by diffusion bonding micron-thick Mo-Al rolled foils

Jiangtao Xiong, Jinglong Li, Xuechao Lu, Weihua Yang, Fusheng Zhang, Weidong Huang

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

Mo and Al rolled foils with 20 and 60μm in thickness respectively, were diffusively bonded at 873-913 K for 40-240 min. Primary phase formed during Mo-Al interfacial reaction is Al8Mo3, which nucleated in Mo foils and grew up with breaking the covering Mo layer. With diffusion bonding time increasing, Al8Mo3, Al5Mo and Al12Mo layers presented between Mo and Al, and Al4Mo appeared between Al8Mo3 and Al5Mo after bonding at 913 K for 240 min. Kinetics analysis indicated that the incubation period of primary phase decreased from 52 to 34.5 min when bonding temperature increased from 873 to 913 K, the pre-exponential factor and diffusion activation energy for an Al atom in the phases produced by Mo-Al reaction are 4.61×10-2cm2/min and 0.98 eV respectively, correspondingly, those for an Al atom in Mo foils are 2.05×10-2cm2/min and 1.48 eV.

源语言英语
页(从-至)943-948
页数6
期刊Jinshu Xuebao/Acta Metallurgica Sinica
44
8
出版状态已出版 - 8月 2008

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