中高铬超纯铁素体不锈钢夹杂物行为研究
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- 英文论文题名：Study on Inclusion Behaviour of Ultra Purity Ferritic Stainless Steel with Medium-High Chromium
- 论文作者：陈兆平 ; 徐迎铁 ; 李实
- 英文论文作者：Chen Zhaoping ; Xu Yingtie ; Li Shi ; Baoshan Iron & Steel Co. ; Ltd. ; Baosteel Stainless Steel Co. ; Ltd.
- 年：2016
- 作者机构：宝山钢铁股份有限公司研究院;宝钢不锈钢有限公司炼钢厂;
- 论文关键词：超纯铁素体不锈钢 ; 夹杂物 ; 热力学 ; 钙处理
- 英文论文关键词：ultra purity ferritic stainless steel ; inclusion ; thermodynamics ; calcium treatment
- 会议召开时间：2016-05-19
- 会议录名称：第十九届（2016年）全国炼钢学术会议大会报告及论文摘要集
- 语种：中文
- 分类号：TF764.1
- 学会代码：ZGJS
- 会议名称：第十九届（2016年）全国炼钢学术会议
- 会议地点：中国湖南长沙
- 主办单位：中国金属学会炼钢分会
- 学会名称：中国金属学会
- 页数：1
- 文件大小：60k
- 原文格式：O
- 会议级别：全国
摘要
本文论述了超纯铁素体不锈钢夹杂物形成的热力学,通过光学显微镜和扫描电镜研究了B439不锈钢中夹杂物从冶炼到浇铸过程的演变规律,并对B443、B445R不锈钢铸坯中夹杂物进行非水电解,观测了夹杂物的三维形貌。在此基础上,开发了中高铬超纯不锈钢冶炼纯净度控制技术以及钙处理技术,在生产中高铬系超纯铁素体不锈钢中实现了2炉以上连续浇铸,确保了产品质量的稳定,实现了中高铬超纯铁素体不锈钢的规模化生产。
This paper reviews the thermodynamics of inclusion formation in the ultra purity ferritic stainless steel.The inclusion evolution in B439 ferritic stainless steel produced by the route of EAF-AOD-VOD-CC were investigated by optical microscope,scanning electron microscope.The inclusions of B443 、 B445 R stainless steel were full viewed by electrolysis of non-aqueous solution.On the basis of the above.fundamental research,the purity control technology for ultra clean ferritic stainless steel to reduce the inclusions amount and calcium treatment technology were developed in Baosteel stainless steel Co.,Ltd.Above two or two heats of the hard refining stainless steel can be cast continuously and the quality of the products are very stable without defects.So the medium-high chromium content ultra clean ferritic stainless steel production on large scale has been realized in Baosteel.
This paper reviews the thermodynamics of inclusion formation in the ultra purity ferritic stainless steel.The inclusion evolution in B439 ferritic stainless steel produced by the route of EAF-AOD-VOD-CC were investigated by optical microscope,scanning electron microscope.The inclusions of B443 、 B445 R stainless steel were full viewed by electrolysis of non-aqueous solution.On the basis of the above.fundamental research,the purity control technology for ultra clean ferritic stainless steel to reduce the inclusions amount and calcium treatment technology were developed in Baosteel stainless steel Co.,Ltd.Above two or two heats of the hard refining stainless steel can be cast continuously and the quality of the products are very stable without defects.So the medium-high chromium content ultra clean ferritic stainless steel production on large scale has been realized in Baosteel.
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