Microstructure selection of Fe-Cr-Ni alloy during directional solidification

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	Microstructure selection of Fe-Cr-Ni alloy during directional solidification
	J. W. Fu ; Y. S. Yang ; J. J. Guo
刊名	International Journal of Cast Metals Research
	2010
卷号	23 期号:2 页码:119-123
关键词	Stainless steel Directional solidification Phase selection Microstructure austenitic stainless-steels rapid solidification phase selection gamma-transition laser treatment growth welds evolution delta nucleation
ISSN号	1364-0461
中文摘要	Phase and microstructure selection in directionally solidified AISI 304 stainless steel has been theoretically studied using the highest interface temperature criterion to explore primary phase prediction during rapid directional solidification. It is found that competitive growth exists between the stable phase (delta) and themetastable phase (gamma) because of different solidification conditions. For the alloy calculated, metastable phase (gamma) dendrites begin to precipitate as the primary phase when the growth rate is higher than 4.2 cm s(-1) at the given temperature gradient of 300 K mm(-1). Strip casting experiments on 304 using a symmetrical water cooled copper mould confirmed the theoretical prediction. The influence of temperature gradient on the velocity scope and the interface temperatures of planar growth and dendrite/cellar growth in directionally solidified stainless steel are also discussed.
原文出处	://WOS:000275308000006
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31110]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	J. W. Fu,Y. S. Yang,J. J. Guo. Microstructure selection of Fe-Cr-Ni alloy during directional solidification[J]. International Journal of Cast Metals Research,2010,23(2):119-123.
APA	J. W. Fu,Y. S. Yang,&J. J. Guo.(2010).Microstructure selection of Fe-Cr-Ni alloy during directional solidification.International Journal of Cast Metals Research,23(2),119-123.
MLA	J. W. Fu,et al."Microstructure selection of Fe-Cr-Ni alloy during directional solidification".International Journal of Cast Metals Research 23.2(2010):119-123.