铈、硫在工业铸铁中的分布及其交互作用

›› 1989, Vol. 25 ›› Issue (4): 82-86.

铈、硫在工业铸铁中的分布及其交互作用

杜维玺;蒋青;韩其勇;张钟植;孙大仁;曹占义

吉林工业大学;北京科技大学

发布日期:1989-09-01

DISTRIBUTION AND INTERACTION OF Ce AND S IN INDUSTRIAL CAST IRON

Du Weixi;Jiang Qing;Han Qiyong;Zhang Zhongzhi;Shun Daren;Cao Zhanyi

Jilin University of Technology Beijing University of Science & Technology

Published:1989-09-01

摘要/Abstract

摘要： 本文采用电解相分离—放射性测量及显微自射线照相法，研究了球化元素铈及反球化元素硫在工业铸铁各相中的分布。结果表明：铈在石墨中富集；铸铁中铈含量的增加，使铸铁中的含硫量及石墨中的硫含量均下降，后者下降速度更快；发现即使球使石墨，其中仍有一定的含硫量；铈与硫彼此均阻碍对方在石墨中吸附；石墨中铈可能在晶体缺陷中吸附，而硫则以间隙固溶形式在石墨中固溶；硫的固溶量很低，硫主要以MnS形式存在，微量硫的存在有利于蠕墨铸铁的获得。

关键词: 电解相分离, 放射性测量, 工业铸铁, 铈的显微分布

Abstract: This paper take advantage of electrolysis separation-radiometry and microradlonulography to study the distribution of nodulizing element Ce and anti-nodulizing element S in various phases of industrial cast iron. Test make it apparent that Ce concentrates most in graphite. As Ce content in cast iron increases, S content both in cast iron and in graphite decreases, but the latter decreases faster. Even if graphite morphology is nodular there is still some S in graphite, Ce blocks S to absorb in graphite and vice versa. In graphite, Ce may absorb in lattice defect, while perhaps S exists in graphite as interstitial dissolved form, dissolved S content in cast iron is very little. S mainly exists in east iron as MnS. It is beneficial that a little S exists in cast iron for getting vermicular graphite cast iron.

Key words: 电解相分离, 放射性测量, 工业铸铁, 铈的显微分布

杜维玺;蒋青;韩其勇;张钟植;孙大仁;曹占义. 铈、硫在工业铸铁中的分布及其交互作用[J]. , 1989, 25(4): 82-86.

Du Weixi;Jiang Qing;Han Qiyong;Zhang Zhongzhi;Shun Daren;Cao Zhanyi. DISTRIBUTION AND INTERACTION OF Ce AND S IN INDUSTRIAL CAST IRON[J]. , 1989, 25(4): 82-86.