Thermodynamics and solidification kinetics of Ag-Ni-Co immiscible alloys

doi:10.1007/s10853-020-05431-7

IMR OpenIR

	Thermodynamics and solidification kinetics of Ag-Ni-Co immiscible alloys
	Deng, Congkun 1,2; Jiang, Hongxiang 1; Zhao, Jiuzhou 1,2; Zhang, Lili 1; He, Jie 1
通讯作者	Zhao, Jiuzhou(jzzhao@imr.ac.cn)
	2020-10-26
发表期刊	JOURNAL OF MATERIALS SCIENCE
ISSN	0022-2461
页码	17
摘要	Phase equilibria in the Ag-Co and Ag-Ni-Co systems were experimentally determined. Thermodynamic assessments for these two systems were performed by applying the Calculation of Phase Diagrams method on the basis of the present and previous experimental results. The optimized thermodynamic parameters bring about a good agreement between the calculated results and experimental data in these two systems. Solidification experiments were conducted for Ag-Ni-Co alloys, and samples with composite microstructure were obtained, in which the (Ni, Co)-rich dispersed-phase particles (DPPs) distribute uniformly in the Ag matrix. The microhardness of the Ag-Ni-Co alloys increases with the content of nickel and cobalt and the cooling rate of the alloys during solidification. A model was developed to analyze the solidification microstructure formation of Ag-Ni-Co alloys by coupling the thermodynamic and kinetic calculations. The microstructure evolution was simulated and discussed in details. The numerical results are consistent with the experimental ones. They demonstrate that the cooling rate during the nucleation of the (Ni, Co)-rich dispersed-phase droplets (DPDs)/DPPs has a dominant influence on the solidification microstructure. The effect of Ostwald ripening of the DPDs/DPPs during solidification is very weak under the present cooling conditions. Graphic abstract
资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences Strategic Priority Program on Space Science ; Natural Science Foundation of Liaoning Province
DOI	10.1007/s10853-020-05431-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771210] ; National Natural Science Foundation of China[51971227] ; National Natural Science Foundation of China[51774264] ; National Natural Science Foundation of China[51901231] ; Chinese Academy of Sciences Strategic Priority Program on Space Science[XDA15013800] ; Natural Science Foundation of Liaoning Province[2020-MS-005]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000584362800003
出版者	SPRINGER
引用统计	被引频次：3[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/321006/141112
专题	中国科学院金属研究所
通讯作者	Zhao, Jiuzhou
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Deng, Congkun,Jiang, Hongxiang,Zhao, Jiuzhou,et al. Thermodynamics and solidification kinetics of Ag-Ni-Co immiscible alloys[J]. JOURNAL OF MATERIALS SCIENCE,2020:17.
APA	Deng, Congkun,Jiang, Hongxiang,Zhao, Jiuzhou,Zhang, Lili,&He, Jie.(2020).Thermodynamics and solidification kinetics of Ag-Ni-Co immiscible alloys.JOURNAL OF MATERIALS SCIENCE,17.
MLA	Deng, Congkun,et al."Thermodynamics and solidification kinetics of Ag-Ni-Co immiscible alloys".JOURNAL OF MATERIALS SCIENCE (2020):17.