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 |
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页(从-至) | 943-948 |
页数 | 6 |
期刊 | Jinshu Xuebao/Acta Metallurgica Sinica |
卷 | 44 |
期 | 8 |
出版状态 | 已出版 - 8月 2008 |