科研之友
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摘要
Experiments consisting of melting followed by thermal stabilization under a temperature gradient have been performed on Al-Ni peritectic alloys. A non-planar interface around the peritectic temperature has been observed. This is found to be induced by the primary Al3Ni2 phase dissolution above the equilibrium peritectic temperature T-P. A solute depleted zone in a distance above T-P and a solute enriched zone below T-P have been characterized. The dissolution perturbation is explained in light of the constitutional superheating driven by solute diffusion under a temperature gradient.
- 出版日期2011-11-1
- 单位哈尔滨工业大学
