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Nucleation mechanism for grain refinement in A357 alloy by Al-Ti-B master alloysZHU Zhao-jun(朱兆军)1, ZENG Song-yan(曾松岩)1, GUO Li-wei(郭立伟)2, WANG Hong-wei(王宏伟)1(1.School of Materials Science... investigated based on the above results.Key words:A357 alloy; nucleation mechanism; grain refinement; Al-5Ti-1B master alloy......
ones.Key words:electropulsing; grain refinement; nucleation rate; TiAl alloy; TA15 alloy...Grain refinement by means of phase transformation and recrystallization induced by electropulsingSONG Hui1, WANG Zhong-jin2(1. Research Station on Mechanics for Postdoctoral Fellows, Harbin Institute......
simulate the nucleation and the grain growth during DRX[2-5]. However, its application is limited due to the deficiency that the time step used in MC simulation is difficult to map to real time. Since... that the R-grain is hardly to be accurately discriminated from deformed matrix, which leads to inaccuracy of so-determined nucleation rate. To improve the simulation performance, RANE et al[13......
and growth to increase creep-fatigue life. Key words:cavity nucleation factor; grain boundary serration; carbide morphology; austenitic stainless steel; grain boundary cavitation; [全文内容正在添加中] ...EFFECTS OF MODIFICATION OF THE CARBIDE CHARACTERISTICS THROUGH GRAIN BOUNDARY SERRATION ON CREEP-FATIGUE LIFE IN AUSTENITIC STAINLESS STEELS S.W.Nam1,H.U.Hong2,K.J.Kim1,K.S.Min3 (1.Dept.......
grain structure along the thickness in the sheets. Key words: 01420 Al-Li alloy; layered grain structure; grain refinement; thermo-mechanical processing; particle stimulated nucleation(PSN... The grain boundaries of the fine elongated grains and the deformed microstructures in the SL are the preferential nucleation sites for the precipitates[14-15] (see Fig.1(a)). The TEM image......
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direction can occupy the final growth space. Key words: high purity aluminum; directional solidification; grain nucleation; lattice orientation; competitive growth grain nucleation and growth in HPT bulk ingots were studied......
) nucleation and grain growth mechanism[24, 25]. 3.2 Chronoamperometric study Fig.2 shows the experimental current-time transient curves. It can be seen that, each of the "I-t" curves consists...Electrocrystallization nucleation and growth of NiFe alloys on brass substrate ZHANG Zhao(张 昭) (Department of Chemistry, Zhejiang University, Hangzhou 310027, China) Abstract......
Grain nucleation and growth behavior of a Sn-Pb alloy affected by direct current: An in situ investigationFenfen Yang1,Zongning Chen1,2,Fei Cao1,Rong Fan3,Huijun Kang1,Wanxia Huang4,Qingxi...="ChDivSummary">In situ synchrotron X-ray radiography was used to study the effect of direct current(DC) on the grain nucleation and growth of Sn-50 wt.%Pb alloy. The results showed that applying DC adequately......
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