摘要
从液态合金凝固的热力学、动力学及传热学角度,对铸造合金的晶粒细化过程作了分析,综合现有的铝硅合金晶粒细化度热分析法评估判据,针对晶体的形核和长大过程,提出了“过冷面积和团相生长加速度”的晶粒细化度的评估判据。
Based on thermal dynamics, billetics and heat--transfer of solidification of the liquid metal, the grain refining treatments has been analyzed in the field of casting alloys. The existing evaluation criterions for grain refinement of Al--Si alloys by thermal analysis were reviewed. According to nucleation and growth of crystals, the new evaluation criterions of 'undercooling area and growth acceleration of solid phase' were suggested.
出处
《铸造》
CAS
CSCD
北大核心
1994年第5期2-6,共5页
Foundry