PHASE-FIELD SIMULATION OF TWO-PHASE GRAIN GROWTH WITH HARD PARTICLES

IMR OpenIR

	PHASE-FIELD SIMULATION OF TWO-PHASE GRAIN GROWTH WITH HARD PARTICLES
	Gao Yingjun 1,2; Zhang Hailin 1; Jin Xing 1; Huang Chuanggao 1; Luo Zhirong 1
通讯作者	Gao Yingjun(gaoyj@gxu.edu.cn)
	2009-10-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	45 期号:10 页码:1190-1198
摘要	Grain growth, due to its importance in controlling the physical properties of a wide variety of materials, has been extensively investigated. Second-phase particles have the capacity to "pin" grain boundaries and therefore affect the grain growth behavior of polycrystalline materials profoundly. They reduce the mobility of grain boundaries and eventually, when a critical grain size is reached, arrest grain growth. Based on a diffuse-interface description, a computer simulation model for studying the microstructural evolution in two-phase solid has been developed. For a grain system with hard particles, the kinetics of two-phase grain growth with the third hard particles was investigated by phase field model with a continuum diffuse-interface field. A polycrystalline microstructure of temporal and spatial evolution of the three-phase-solid system was obtained by solving three kinetics equations. It is found that the pinning effect is enhanced with the increase of the size and the volume fraction of third-phase particles. The greater the volume fraction and size of third-phase particles are, the smaller the limited sizes of grain growth are. If the volume fraction of third-phase particle maintains a constant and the size of third-phase particles is smaller, then the pinning effect of third-phase particles is stronger. When third particles with two different sizes under the same volume fraction are introduced in the system of grain growth, the pinning effect of the particles is the best. The power growth law, grain morphology, critical grain size, grain growth dynamics and topology structure of two-phase polycrystalline materials simulated by phase-field model are in well accordance with the experimental results and theoretical results of other simulations.
关键词	phase-field simulation grain growth hard particle Zener pinning
资助者	National Natural Science Foundation of China
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50661001] ; National Natural Science Foundation of China[50061001]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000272062800007
出版者	SCIENCE PRESS
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/96721
专题	中国科学院金属研究所
通讯作者	Gao Yingjun
作者单位	1.Guangxi Univ, Sch Phys Sci & Engn, Nanning 530004, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Gao Yingjun,Zhang Hailin,Jin Xing,et al. PHASE-FIELD SIMULATION OF TWO-PHASE GRAIN GROWTH WITH HARD PARTICLES[J]. ACTA METALLURGICA SINICA,2009,45(10):1190-1198.
APA	Gao Yingjun,Zhang Hailin,Jin Xing,Huang Chuanggao,&Luo Zhirong.(2009).PHASE-FIELD SIMULATION OF TWO-PHASE GRAIN GROWTH WITH HARD PARTICLES.ACTA METALLURGICA SINICA,45(10),1190-1198.
MLA	Gao Yingjun,et al."PHASE-FIELD SIMULATION OF TWO-PHASE GRAIN GROWTH WITH HARD PARTICLES".ACTA METALLURGICA SINICA 45.10(2009):1190-1198.