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PHASE-FIELD SIMULATION OF TWO-PHASE GRAIN GROWTH WITH HARD PARTICLES
Gao Yingjun1,2; Zhang Hailin1; Jin Xing1; Huang Chuanggao1; Luo Zhirong1
Corresponding AuthorGao Yingjun(gaoyj@gxu.edu.cn)
2009-10-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume45Issue:10Pages:1190-1198
AbstractGrain 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.
Keywordphase-field simulation grain growth hard particle Zener pinning
Funding OrganizationNational Natural Science Foundation of China
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[50661001] ; National Natural Science Foundation of China[50061001]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000272062800007
PublisherSCIENCE PRESS
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/96723
Collection中国科学院金属研究所
Corresponding AuthorGao Yingjun
Affiliation1.Guangxi Univ, Sch Phys Sci & Engn, Nanning 530004, Peoples R China
2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
Recommended Citation
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.
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