Precipitation Kinetics of Cr-2 N in High Nitrogen Austenitic Stainless Steel

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	Precipitation Kinetics of Cr-2 N in High Nitrogen Austenitic Stainless Steel
其他题名	Precipitation Kinetics of Cr2 N in High Nitrogen Austenitic Stainless Steel
	Shi Feng; Wang Lijun; Cui Wenfang; Liu Chunming
	2008
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
卷号	15 期号:6 页码:72-77
摘要	The precipitation behavior of Cr-2 N during isothermal aging in the temperature range from 700 degrees C to 950 degrees C in Fe-18Cr-12Mn-0.48N (in mass percent) high nitrogen austenitic stainless Steel. including morphology and content of precipitate, was investigated using optical microscopy. Scanning electron Microscopy, and transmission electron microscopy. The isothermal precipitation kinetics curve of Cr-2 N and the corresponding precipitation activation energy were obtained. The results show that Cr-2 N phase precipitates in a cellular way and its morphology is transformed from initial granular precipitates to lamellar ones in the cell with increasing aging time. The nose temperature of Cr-2 N precipitation is about 800 degrees C. with a corresponding incubation period of 30 min, and the ceiling temperature of Cr-2 N precipitation is 950 degrees C. The diffusion activation energy of Cr-2 N precipitation is 296 kJ/mol.
其他摘要	The precipitation behavior of Cr2 N during isothermal aging in the temperature range from 700 ℃ to 950 ℃ in Fe-18Cr-12Mn-0.48N （in mass percent） high nitrogen austenitic stainless steel, including morphology and content of precipitate, was investigated using optical microscopy, scanning electron microscopy, and transmission electron microscopy. The isothermal precipitation kinetics curve of Cr2 N and the corresponding precipitation activation energy were obtained. The results show that Cr2N phase precipitates in a cellular way and its morphology is transformed from initial granular precipitates to lamellar ones in the cell with increasing aging time. The nose temperature of Cr2 N precipitation is about 800 ℃, with a corresponding incubation period of 30 min, and the ceiling temperature of Cr2N precipitation is 950℃. The diffusionactivation energy of Cr2 N precipitation is 296 kJ/mol.
关键词	DISCONTINUOUS PRECIPITATION CELLULAR PRECIPITATION CR2N high nitrogen austenitic stainless steel isothermal aging precipitation kinetics precipitation activation energy
收录类别	CSCD
语种	英语
资助项目	[National Basic Research Program of China] ; [National Natural Science Foundation of China]
CSCD记录号	CSCD:3584342
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/156562
专题	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	Shi Feng,Wang Lijun,Cui Wenfang,et al. Precipitation Kinetics of Cr-2 N in High Nitrogen Austenitic Stainless Steel[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2008,15(6):72-77.
APA	Shi Feng,Wang Lijun,Cui Wenfang,&Liu Chunming.(2008).Precipitation Kinetics of Cr-2 N in High Nitrogen Austenitic Stainless Steel.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,15(6),72-77.
MLA	Shi Feng,et al."Precipitation Kinetics of Cr-2 N in High Nitrogen Austenitic Stainless Steel".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 15.6(2008):72-77.