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Article ID: 1003-6326(2005)02-0291-05 Modeling of solidification grain structure for Ti-45%Al alloy ingot by cellular automaton WU Shi-ping(吴士平), LIU Dong-rong(刘东戎), GUO Jing-jie(郭景杰), FU Heng-zhi(傅恒志) (School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China) Abstract: A cellular automaton model for simulating grain structure formation during......
automaton-finite element (CAFE) model in CALCOSOFT package. The model was first validated by comparison of the reported grain structure of Al-7%Si (mass fraction) alloy. Then, the influence of pouring... the heat convection coefficient has little influence on the stray grain formation. Key words: computer simulation; unidirectional solidification; stray grain; grain structure 1 Introduction......
J. Cent. South Univ. Technol. (2008) 15: 147-152 DOI: 10.1007/s11771-008-0029-4 Formation mechanism of gradient-distributed particles and their effects on grain structure in 01420 Al-Li alloy... microstructures along the thickness. The precipitate behavior of the second phase particles and their effects on the distribution of dislocations and layered recrystallized grain structure were analyzed......
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Phase composition and structure of grain boundary of oversintered Y3Al5O12 ceramics LI Chang-qing(李长青), ZUO Hong-bo(左洪波), HAN Jie-cai(韩杰才), ZHANG Ming-fu(张明福), MENG Song-he(孟松鹤), YAO Tai(姚 泰... composition of the grain boundary is composed of eutectic type of structure such as YAP phase and α- Al2O3 phase tested by energy-dispersive spectrometry(EDS) analysis in Fig.7. Although hexagonal YAP......
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means the solidification structure would be coarse grain. Recalescence limits the refinement of grain size by allowing growth of existing grains but preventing further nucleation [9-10]. However... Correlation of recalescence with grain refinement of magnesium alloys GAO Lei(高 磊)1, 2, LIANG Song-mao(梁松茂)1, 2, CHEN Rong-shi(陈荣石)1, HAN En-hou(韩恩厚)1 1. State Key Laboratory for Corrosion......
flammable and explosive, special primary crystal structure, and so on. The results such as the grain size decreasing sharply, approximately spherical grain shape and mechanical properties enhancement... Influences of melt treatment on grain sizes and morphologies of AZ91D alloy QI Xiang-chao(齐祥超)1, TANG Jing-lin(唐靖林)1, 2, LI Shuang-shou(李双寿)1, 2, ZENG Da-ben(曾大本)1 1. Department of Mechanical......
construction and development of society, and such material is characterized by ultra-fine grain. In this paper, 400MPa class plain carbon structure steel has been studied, making its yield strength...The Study on 400 MPa Class Plain Carbon Structure Steel DU Lin-xiu1,WANG Guo-dong1,LI Wei-juan2,ZHANG Hong-mei2,LI Sheng-li2 (1.State Key Lab of Rolling and Automatic, Northeastern University......