Hereditary effect of Al-based modifiers and grain refiners on structure and properties of A356.2 alloys

来源期刊：中国有色金属学报(英文版)2002年第2期

论文作者：李培杰 张燕飞 V. I. Nikitin E. G. Kandalova K. V. Nikitin

文章页码：233 - 237

Key words：master alloys; hereditary effect; grain refinement

Abstract: The hereditary effect of Al-Ti, Al-Ti-B, Al-Sr master alloys on the structure and properties of A356.2 alloys was investigated, and comparison analysis between the master alloys used in the foundry industry and the fine-crystalline grain refiners produced by technologies of Samara State Technical University was conducted. The results show that less than 0.5% additions of FCR master alloys can promote 8%～20% in the elongation of as-cast A356.2 alloys. FCR additives are more efficient in comparison with conventional grain refiners and modifiers. Their effectiveness depends on their genetic effect of their finer structures.