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Effect of silicon on phase selection of ternary compounds during solidification of ZA84 magnesium alloy ZHANG Chun-xiang1,2, GUAN Shao-kang3, LIU Tao2, LI Shao-hua2, LIU Zhong-xia1 1... that with increasing Si addition in ZA84 alloy, the liquidus temperatures of the alloys and the solidification temperature ranges decrease. The ternary compound in ZA84 alloy is mainly τ phase and a little φ......
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in these two alloys are featured by that fine block Si uniformly distributes on the α matrix and no conventional eutectic structure exists. The evolution mechanism of this structure peculiarity was presented. It is believed that the final microstructures of spray deposited hypereutectic alloys are the result of the porce eutectic, which appears in the depositing solidification process. The large number......
growth by Monte Carlo method [J]. Acta Metall Mater, 1992, 40: 3369-3379. [6] RAPPAZ M, GANDIN C A. Probabilistic modelling of micro- structure formation in solidification processes [J]. Acta Metall... Two-dimensional cellular automaton model for simulating structural evolution of binary alloys during solidification ZHANG Lin(张 林), ZHANG Cai-bei(张彩碚) School of Science, Northeastern University......
to Al on as-cast microstructure and solidification behaviour of Mg-Zn-Al ternary magnesium alloys YANG Ming-bo1, 2, PAN Fu-sheng2, LI Zhong-sheng2, SHEN Jia1 (1. School of Materials Science... of Zn to Al on the as-cast microstructure and solidification behaviour of Mg-Zn-Al ternary magnesium alloys was investigated. The results indicate that, when the mass ratio of Zn to Al......
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Trans. Nonferrous Met. Soc. China 26(2016) 2247-2256 Solidification process and microstructure of transition layer of Cu-Al composite cast prepared by method of pouring molten aluminum Shu-ying CHEN...: The Cu-Al composite casts were prepared by the method of pouring molten aluminum. The solidification process and the microstructure of the transition layer were investigated during the recombination......
which causes the numerous nucleation and growth of globular crystals. [ Keyword: semi solid material processing; solidification structure; succinonitrile water...率的突变容易造成球晶的大量形核生长. 关键词: 半固态处理;凝固组织;丁二腈水;球晶; 中图分类号: TG24 收稿日期:1999-12-03 基金:国家杰出青年科学基金!资助项目 ( 5982 51 0 8); Formation of globular structure during semi-solid......
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A METHOD OF AS-CAST CRACK PREDICTION BASED UPON NUMERICAL SIMULATION OF SOLIDIFICATION J.Z.Jin1,X.S.Zheng1,S.Yao1 (1.Research Center of Foundry Engineering, Dalian University of Technology,Dalian 116024, China) Abstract:Based on the numerical simulation of solidification of castings, a thermal stress formula and a thermal crack initiation criterion are established, which suggest......