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合金凝固组织形态及其演化一直是现代凝固组织的核心问题。近年来,分形几何的发展和应用为合金凝固组织的研究提供了一种新方法,并取得了一定进展。本文研究的Pd_(77.5)Au_6Si_(16.5)合金在无容器凝固环境下的凝固过程为一非平衡凝固过程,其凝固组织中初生相具有不规则的几何形貌,用分形分析的方法来定量地描述其形貌及演变过程尚未见报道。
Solidification of alloy morphology and its evolution has been the core issue of modern solidification organizations. In recent years, the development and application of fractal geometry has provided a new method for the study of alloy solidification and some progress has been made. The solidification process of the Pd_ (77.5) Au_6Si_ (16.5) alloy studied in this paper is a non-equilibrium solidification process. The primary phase in the solidified structure has irregular geometric morphology. The fractal analysis Describing the morphology and evolution has not been reported.