Real time observation of equiaxed growth of Sn-Pb alloy under an applied direct current by synchrotron microradiography
Zhu, J; Wang, TM; Cao, F; Huang, WX; Fu, HW; Chen, ZN;黄万霞
刊名MATERIALS LETTERS
2012
卷号89页码:137-139
关键词X-ray techniques Metals and alloys Crystal growth Microstructure
学科分类Materials Science; Physics
DOI10.1016/j.matlet.2012.08.094
英文摘要The equiaxed growth of Sn-50 wt% Pb alloy with an applied direct current (DC) was investigated using an updated synchrotron radiation imaging technique, i.e. the diffraction enhanced imaging (DEI). Without DC, dendrites grew in an irregular manner due to the gravity-driven fluid flow; while imposing DC, the dendrites grew in an isotropous manner and more equiaxed morphology of grains was finally obtained. The electromagnetic flow induced by DC decreased the pileup of solute ahead of the growing solid/liquid interface and promoted the growth of the dendrites situated aside and below. Quantitative analysis on the growth rate of dendrites indicated that the interactions between dendrites were strengthened when imposing DC. It was thus believed that, with DC treatment, the formation of finer and more equiaxed grain structure is mainly attributed to the suppressed growth and strengthened interaction of growing grains. (C) 2012 Elsevier By. All rights reserved.
收录类别SCI
WOS记录号WOS:000311327200038
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223862
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Zhu, J,Wang, TM,Cao, F,et al. Real time observation of equiaxed growth of Sn-Pb alloy under an applied direct current by synchrotron microradiography[J]. MATERIALS LETTERS,2012,89:137-139.
APA Zhu, J,Wang, TM,Cao, F,Huang, WX,Fu, HW,&Chen, ZN;黄万霞.(2012).Real time observation of equiaxed growth of Sn-Pb alloy under an applied direct current by synchrotron microradiography.MATERIALS LETTERS,89,137-139.
MLA Zhu, J,et al."Real time observation of equiaxed growth of Sn-Pb alloy under an applied direct current by synchrotron microradiography".MATERIALS LETTERS 89(2012):137-139.
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