Microstructure Evolution of the Pb-Al Alloy Solidified Under the Effect of Electric Current Pulses

doi:10.1007/s11663-023-02857-7

IMR OpenIR

	Microstructure Evolution of the Pb-Al Alloy Solidified Under the Effect of Electric Current Pulses
	Li, Yanqiang 1,2; Jiang, Hongxiang 1,2; Sun, Hao 1,2; Zhang, Lili 1; He, Jie 1,2; Zhao, Jiuzhou 1,2
通讯作者	Jiang, Hongxiang(hxjiang@imr.ac.cn)
	2023-07-18
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
ISSN	1073-5615
页码	11
摘要	A theoretical model was built to describe the microstructure evolution during the solidification of a liquid-solid phase separation alloy under the effect of electric current pulses (ECPs). Solidification experiments were performed with Pb-0.15 wt pct Al alloy and the microstructure evolution was simulated. The simulation results are consistent with the experimental ones. They show that the Joule heating effect of ECPs can enhance the melt convection; the electromagnetic force induced by ECPs leads to a migration of minority phase particles (MPPs) from the surface to the center; the electromagnetic energy induced by ECPs can effectively promote the nucleation of MPPs, resulting in the refinement of MPPs. The peak current density (j(max)) of ECPs and the temperature drop of the melt in the nucleation region during one pulse cycle Delta T-F,T-Nuc = F-1 center dot (partial derivative T=partial derivative t)(Nuc)) dominate the refinement extent of MPPs. When the peak current density is lower than a critical value, the size of MPPs is almost unchanged. While when the peak current density is higher, the size of MPPs decrease rapidly. For a fixed value of j(max), there is an optimal value of Delta T-F,T-Nuc to achieve the best refinement extent of MPPs.
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; China's Manned Space Station Project ; Science and Technology Project of Fujian Province ; Space Utilization System of China Manned Space Engineering
DOI	10.1007/s11663-023-02857-7
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China ; National Natural Science Foundation of China[2021YFA0716303] ; National Natural Science Foundation of China[51971227] ; National Natural Science Foundation of China[51974288] ; China's Manned Space Station Project ; Science and Technology Project of Fujian Province[52174380] ; Space Utilization System of China Manned Space Engineering[2020T3037] ; [KJZ-YY-NCL06]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001093245500001
出版者	SPRINGER
引用统计	被引频次：1[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/321006/177865
专题	中国科学院金属研究所
通讯作者	Jiang, Hongxiang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Li, Yanqiang,Jiang, Hongxiang,Sun, Hao,et al. Microstructure Evolution of the Pb-Al Alloy Solidified Under the Effect of Electric Current Pulses[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2023:11.
APA	Li, Yanqiang,Jiang, Hongxiang,Sun, Hao,Zhang, Lili,He, Jie,&Zhao, Jiuzhou.(2023).Microstructure Evolution of the Pb-Al Alloy Solidified Under the Effect of Electric Current Pulses.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,11.
MLA	Li, Yanqiang,et al."Microstructure Evolution of the Pb-Al Alloy Solidified Under the Effect of Electric Current Pulses".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2023):11.