Modeling of the Precipitation Kinetics During Aging a Predeformed Fe-Cu Alloy

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	Modeling of the Precipitation Kinetics During Aging a Predeformed Fe-Cu Alloy
	J. Z. Zhao; Q. L. Wang; H. L. Li; J. He
	2011
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	42A 期号:10 页码:3200-3207
摘要	A model is developed to describe the microstructure evolution during aging a Fe-Cu alloy. The precipitation process during aging a predeformed Fe-1.5 wt pct Cu is calculated and the kinetic details of aging are discussed. The model is satisfactorily tested by comparing with the reported experimental results. The numerical results demonstrate that the nucleation of the precipitates occurs on dislocations first. However, the maximum nucleation rate of the precipitates in the matrix is much higher than that on dislocations and it is not affected by the appearance of dislocations. Only a small fraction of precipitates locate on dislocations immediately after nucleation. The particles in the matrix dissolve preferentially during coarsening, and most of the remained precipitates locate on dislocations in an overaged sample. Dislocations have little effect on the number density and average radius of the precipitates in the late stage of aging, although they promote the beginning of precipitation in the early stage of aging. The heating rate of the specimen almost does not affect the summit of the particle number density as well as its corresponding mean particle radius.
部门归属	[zhao, j. z.; wang, q. l.; li, h. l.; he, j.] chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhao, jz (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jzzhao@imr.ac.cn
关键词	Copper Precipitation Alpha-fe Steel Simulation Iron Irradiation Nucleation System Energy
URL	查看原文
WOS记录号	WOS:000293969900028
引用统计	被引频次：8[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/321006/30949
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Z. Zhao,Q. L. Wang,H. L. Li,et al. Modeling of the Precipitation Kinetics During Aging a Predeformed Fe-Cu Alloy[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2011,42A(10):3200-3207.
APA	J. Z. Zhao,Q. L. Wang,H. L. Li,&J. He.(2011).Modeling of the Precipitation Kinetics During Aging a Predeformed Fe-Cu Alloy.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,42A(10),3200-3207.
MLA	J. Z. Zhao,et al."Modeling of the Precipitation Kinetics During Aging a Predeformed Fe-Cu Alloy".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 42A.10(2011):3200-3207.