帘线钢82A大方坯的原位统计分布分析

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摘要采用金属原位分析仪对帘线钢82A大方坯进行了原位成分统计分布分析,并探讨了方坯不同区域中C、Si、Mn、P、S、Al和Ca元素的分布规律,发现C、S、P和Mn在中心存在明显的岛状偏析,中心区域的偏析较边部严重。C、S和Mn元素在方坯边部有明显的负偏析带,而Si的分布较为均匀。帘线钢中的Al基本上都以夹杂物的形式存在,并以Al、Ca的复合夹杂物为主,且中心的夹杂物含量明显比边部多。采用扫描电镜结合能谱分析的方法对不同区域夹杂物的尺寸和成分进行了研究,两种方法所得结果具有较好的一致性。

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	李江文
	张穗忠
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	李冬玲

关键词 ：原位统计分布分析, 帘线钢, 方坯, 偏析, 夹杂物

Abstract：Original position statistic distribution analysis was performed by metal original position analyzer for the large square billet of 82A tire cord steel. The regularities of the component distribution have been investigated for C,Si,Mn,P,S,Al and Ca in different areas of the square billet. Obvious central segregation of C,S, P and Mn with the shape of island has been found and the segregation degree in central area is greater than in the side area. An obvious negative segregation belt appears in the side area of the square billet and the content distribution of Si is more homogenous than other elements. Al mainly existed in the form of inclusion in tire cord steel and the large inclusions mostly belong to a complex inclusion of Al and Ca. The content of Al inclusion in central area is also much more than in the side area. The scanning electron microscope combined with energy spectrum analysis has been used to study the size and composition of the inclusions in different areas. The results obtained from the two methods have a good agreement.

Key words： original position statistic distribution analysis tire cord steel square billet segregation inclusion

收稿日期: 2012-02-26

ZTFLH:

O657.31

作者简介: 李江文(1981-),女,博士,高工,主要从事光谱及析出相分析方向的研究;E-mail:jiangwen_81@126.com

引用本文:

李江文,张穗忠,夏念平,余卫华,李冬玲. 帘线钢82A大方坯的原位统计分布分析[J]. 冶金分析, 2013, 33(7): 1-9. LI Jiang-wen, ZHANG Sui-zhong, XIA Nian-ping,YU Wei-hua,LI Dong-ling. Original position statistic distribution analysis for the large square billet of 82A tire cord steel. , 2013, 33(7): 1-9.

链接本文:

http://47.93.29.245/Jweb_yjfx/CN/ 或 http://47.93.29.245/Jweb_yjfx/CN/Y2013/V33/I7/1


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