【摘要】 本文从合金相形成理论出发,对合金中固溶度的变化和形成化合物的趋势(中间相的稳定性)进行了分析,提出合金相中元素间交互作用强度的概念;并用元素间交互作用强度对稀土铝合金铸态组织中合金元素和化合物的分布规律进行了分析。更多还原

【Abstract】 In order to account for the different effects of rare earth metals on as--cast alumini-um alloys, the tendency of intermetallic compound formation and the alteration of solu-bility (or residual supersaturation) of alloying elements in the matrix was investigated,from the viewpoint of the theory of alloy phase formation. A new concept--interactionintensity of alloying elements in an alloy was proposed, and it was used to account forthe distribution of alloying elements and intermediate phases in as--cast aluminium al-loys with rare earth additions.更多还原