Effect of electric current pulses on grain size in castings

IMR OpenIR

	Effect of electric current pulses on grain size in castings; Effect of electric current pulses on grain size in castings
	R. S. Qin; B. L. Zhou
	1998 ; 1998
发表期刊	International Journal of Non-Equilibrium Processing ; International Journal of Non-Equilibrium Processing
ISSN	1368-9290 ; 1368-9290
卷号	11 期号:1 页码:77-86
摘要	The effect of electric current pulses (ECP) on grain size in castings is considered. The relationship between grain size and electric current density is revealed. Numerical calculation shows that an electric current density with a magnitude of 10(3) A/cm(2) is needed to reduce the grain size by one order of magnitude for some pure metals, such as Ni, Sn, Pb, Cu, and Fe. The effects of Joule heating, skin, and pinch force are proved to be of lesser importance. The theory gives a good explanation for the experimental results reported by Conrad and co-workers.; The effect of electric current pulses (ECP) on grain size in castings is considered. The relationship between grain size and electric current density is revealed. Numerical calculation shows that an electric current density with a magnitude of 10(3) A/cm(2) is needed to reduce the grain size by one order of magnitude for some pure metals, such as Ni, Sn, Pb, Cu, and Fe. The effects of Joule heating, skin, and pinch force are proved to be of lesser importance. The theory gives a good explanation for the experimental results reported by Conrad and co-workers.
部门归属	acad sinica, inst met res, shenyang 110015, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;qin, rs (reprint author), acad sinica, inst met res, shenyang 110015, peoples r china ; acad sinica, inst met res, shenyang 110015, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;qin, rs (reprint author), acad sinica, inst met res, shenyang 110015, peoples r china
关键词	Electric Current Pulse Electric Current Pulse Grain Size Grain Size Nanocrystalline Nanocrystalline Conductors Conductors
URL	查看原文 ; 查看原文
WOS记录号	WOS:000078177000007 ; WOS:000078177000007
引用统计	被引频次：63[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/321006/37755
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. S. Qin,B. L. Zhou. Effect of electric current pulses on grain size in castings, Effect of electric current pulses on grain size in castings[J]. International Journal of Non-Equilibrium Processing, International Journal of Non-Equilibrium Processing,1998, 1998,11, 11(1):77-86, 77-86.
APA	R. S. Qin,&B. L. Zhou.(1998).Effect of electric current pulses on grain size in castings.International Journal of Non-Equilibrium Processing,11(1),77-86.
MLA	R. S. Qin,et al."Effect of electric current pulses on grain size in castings".International Journal of Non-Equilibrium Processing 11.1(1998):77-86.