Paper Abstracts Contained in the Proceedings of the 10^(th) International Conference on Semi-Solid Processing of Alloys and Composites,S2P2008(Part Ⅲ)  

出　　处：《China Foundry》2009年第4期378-382,共5页中国铸造（英文版）

摘　　要：19. Microstructural Evolution of AZ91 Alloy Containing 3%Ca Prepared by Cooling Slope A. ravani. H. Aashuri, P. Davami, A. Narimannezhad, A. Foroughi and M. Kiani Abstract： Globulization of the grain refined AZ91 magnesium alloy with Ca on a cooling slope was investigated. Dendritic morphology of the grains was transferred into round and well distributed small particles as a result of grainrefinement effect of Ca in the alloy. Semi-solid holding of the alloy was carried out at different temperatures to improve the spherecity of the globules. Results show that, remelting at 540 ℃ for 30 rain provides the best shape factor for the alloy. The study of coarsening kinetic in this alloy showed lower growth rate alternative other research which used same condition for produce semi-solid billet just in using Ca.26. Microstructure Evolution and Mechanical Properties of Rheoformed YL112 Aluminum AlloyXiang Jie Yang and Hong Min Guo Abstract: Rheo-die casting (RDC) based on LSPSF (low superheat pouring with a shear field) rheocasting process has been exploited. In case of secondary die casting aluminum alloy YL112, LSPSF

关 键 词：半固态合金 论文摘要 复合材料 国际会议 AZ91镁合金 程序 半固态坯料 钙合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程] G232[金属学及工艺—金属材料]