Inclusions for Ultra-pure Ferritic Stainless Steels Containing 21% Chromium

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	Inclusions for Ultra-pure Ferritic Stainless Steels Containing 21% Chromium
	Wang Hongpo; Sun Lifeng; Peng Bo; Jiang Maofa
刊名	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
	2013
卷号	20 期号:10 页码:70-74
关键词	LIQUID-IRON TITANIUM-OXIDES THERMODYNAMICS EQUILIBRIUM EVOLUTION BEHAVIOR OXYGEN MELT ultra-pure ferritic stainless steel ingot inclusion stabilizing element
ISSN号	1006-706X
其他题名	Inclusions for Ultra-pure Ferritic Stainless Steels Containing 21% Chromium
英文摘要	As stabilizing elements added into ultra-pure ferritic stainless steels, niobium and titanium react with carbon and nitrogen to form carbonitrides and have great effects on the ratio of equiaxed zone and the grain size of solidification structure of ingots, which remarkably affect the quality of cold-rolled sheets. Combined with thermodynamic calculation, style and precipitation progress of inclusions in ultra-pure ferritic stainless steels were investigated by optical microscopy, scanning electron microscopy, transmission electron microscopy and energy dispersive spectroscopy. The results indicate that the inclusions are mainly Ti-Al-N-O system inclusions in ultra-pure ferritic stainless steels. Al2O3 starts to precipitate firstly and then TiOx and TiN precipitates sequently. The inclusions are mainly single TiN particles and complex inclusions with Al2O3-Ti2O3 as cores and covered with TiN under the condition of 0. 31% titanium addition and mainly Al2O3 under the condition of 0.01% titanium addition. A few (Nb, Ti)N particles precipitate because of no enough titanium to react with nitrogen when titanium addition is 0. 01%. In addition, fine Nb(C,N) particles with size of less than 500 nm precipitate at relatively low temperature.
资助项目	[Fundamental Research Funds for Central Universities of China] ; [National Natural Science Foundation of China]
语种	英语
CSCD记录号	CSCD:4958492
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/147603]
专题	金属研究所_中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Wang Hongpo,Sun Lifeng,Peng Bo,et al. Inclusions for Ultra-pure Ferritic Stainless Steels Containing 21% Chromium[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2013,20(10):70-74.
APA	Wang Hongpo,Sun Lifeng,Peng Bo,&Jiang Maofa.(2013).Inclusions for Ultra-pure Ferritic Stainless Steels Containing 21% Chromium.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,20(10),70-74.
MLA	Wang Hongpo,et al."Inclusions for Ultra-pure Ferritic Stainless Steels Containing 21% Chromium".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 20.10(2013):70-74.