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Derivation of Hillert-type 3D grain growth rate model with topological considerations and discussion on its grain size parameterGuoquan Liu; Haibo Yu;Xiaoyan Song;Xangge Qin;Chao Wang Materials...:<正> A Hillert-type three-dimensional grain growth rate model was derived through the grain topology-size correlation model,combined with a topology......
coarsening process. The program reflects the grain coarsening quite well even through the average grain size becomes very large. Follow results have been obtained: (a) The model reflect the normal grain...CELLULAR AUTOMATA MODELLING OF GRAIN COARSENING DURING REIHEATING AND VALIDATION WITH THE EXPERIMENTAL RESULTS S.P.Banks1,E.J.Palmiere2,W.H.Yu3,J.T.Han3 (1.Department of Automatic Control......
Effect of Relative Grain Size on the Flow Stress of Polycrystalline FCC Sheets杨梅Advanced Vocational Technical College, Shanghai University of Engineering Science摘 要:grain boundary constraints when the ratio of thickness-to-grain size was changed. The simulated......
Grain Size Dependence of Exchange-Coupling Interaction between Magnetically Soft-Hard Grains and Effective Anisotropy 傅爽1,韩广兵1,冯维存1,陈伟1,刘汉强1,高汝伟1 (1.School of Physics & Microelectronics, Shandong University, Jinan 250100, China) Abstract:Taking α-Fe and Nd2Fe14B grains as example, the grain size dependence of the exchange-coupling interaction and effective anisotropy and also their variations......
) on the microstructures of AZ91D alloy were explored experimentally. The results indicate that the micron carbon powders inoculation processing with 0.1% (mass fraction) addition level makes the grain size... stirring" processing improves grain shape of α-Mg further and refines grain size to about 72 μm, less than 15% that of the initial primary crystal. Key words: melt treatment; electromagnetic stirring......
Correlation between process parameters,grain size and hardness of friction-stir-welded Cu-Zn alloysAkbar Heidarzadeh,Tohid SaeidFaculty of Materials Engineering, Sahand University of Technology摘 要:In this study, the effects of tool rotational speed, tool traverse speed, and Zn content on the grain size and hardness of the friction-stir-welded(FSWed) Cu......
Effect of grain size on fatigue cracking at twin boundaries in a CoCrFeMnNi high-entropy alloyA.G.Wang1,X.H.An1,J.Gu2,X.G.Wang3,L.L.Li3,4,W.L.Li1,M.Song2,Q.Q.Duan3,Z.F.Zhang3,X.Z.Liao11. School... Mn Ni high-entropy alloy with three different grain sizes was systematically investigated under low-cycle fatigue. Irrespective of grain size,the change from slip band cracking to TB cracking occurred......
Effect of Bimodal Grain Size Distribution on the Strain Hardening Behavior of a Medium-Entropy AlloyIbrahim Ondicho1,2,Fredrick Madaraka1,2,Melody Chepkoech44. Department of Mechanical Engineering... microstructure and the grain size was studied using the Hollomon and Ludwigson equations.The specimens under study were partially recrystallized,fully recrystallized with ultrafine-grained......
slurry segregation, the representation parameters of gradation, i.e., average grain diameter and particle size distribution index, were established based on the Fuller formula. Eleven types of gradation... a discrepancy of 3.23% and 5.75%, respectively. Hence, the ranges of particle size distribution index and average grain diameter determined in the paper are accurate and reliable. Key words: grain......
Grain Size and Photocatalytic Activity of Nanometer TiO2 Thin FilmsPrepared by the Sol-gel Method余家国摘 要:Transparent anatase TiO2 nanometer thin films with photocatalytic activity were prepared via the sol-gel method on soda-lime glass. The thickness , crystalline phase, grain size, surface hydroxyl amount and so on were characterized by scanning......
