Acta Metall Sin  2007, Vol. 43 Issue (10): 1107-1112     DOI:

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PHASE-FIELD SIMULATION OF THE EFFECT OF INTER-PARTICLE DIFFUSIONAL INTERACTION ON PRECIPITATE MORPHOLOGY AND COMPOSITION

ZHANG Yu-Xiang;WANG Jin-cheng;;Gencang Yang;Yaohe Zhou

西北工业大学凝固技术国家重点实验室

ZHANG Yu-Xiang; WANG Jin-cheng; Gencang Yang; Yaohe Zhou. PHASE-FIELD SIMULATION OF THE EFFECT OF INTER-PARTICLE DIFFUSIONAL INTERACTION ON PRECIPITATE MORPHOLOGY AND COMPOSITION. Acta Metall Sin, 2007, 43(10): 1107-1112 .

Abstract References Related Articles Recommended Metrics Download:  PDF(443KB)  Export:  BibTeX | EndNote (RIS)       Abstract  With a reasonable mesh-induced anisotropy, phase-field simulation is performed to investigate the effect of the diffusional interaction between the particles on precipitates morphologies and inside compositions without taking elastic interaction into account. Simulated results show that, precipitate-morphology transition will occur during growth and coarsening of the precipitate due to the interaction. The initially rounded particle may vary in the sequence of: circular square  circular  rhombic  circular, and the composition of precipitate will become inhomogeneous. With increase of the precipitate volume fraction, the influence of the inter-particle diffusional interaction on the precipitate morphology and the composition will become stronger. Key words:  phase-field method      precipitate      diffusion field      interaction       Received:  18 January 2007      ZTFLH:  TG111.6   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors ZHANG Yu-Xiang WANG Jin-cheng Gencang Yang Yaohe Zhou URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2007/V43/I10/1107 [1]Wang Y Z,Chert L Q,Khachaturyan A G.Scr Metall Mater,1991;25:1387 [2]Wang Y Z,Chen L Q,Khachaturyan A G.Phys Rev,1992; 46B:11194 [3]Wang Y Z,Khachaturyan A G.Acta Metall Mater,1995; 43:1837 [4]Wang Y Z,Chen L Q,Khachaturyan A G.Scr Metall Mater,1991;25:1969 [5]Wang Y Z,Khachaturyan A G.Philos Mag,1995;72A: 1161 [6]Hu S Y,Chen L Q.Acta Mater,2001;49:1879 [7]Hou H,Zhao Y H,Chen Z,Xu H.Acta Metall Sin,2005；41:695 (侯华，赵宇宏，陈铮，徐宏．金属学报，2005；41：695) [8]Li X L,Chen Z,Liu X G,Liu B.Acta Metall Sin,2002; 38:458 (李晓玲，陈铮，刘晓光，刘兵．金属学报，2002；38：458) [9]Braun R J,Cahn J W.McFndden G B,Wheeler A A. 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