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

IMR OpenIR

	Microstructure selection of Fe-Cr-Ni alloy during directional solidification; Microstructure selection of Fe-Cr-Ni alloy during directional solidification
	J. W. Fu; Y. S. Yang; J. J. Guo
	2010 ; 2010
发表期刊	International Journal of Cast Metals Research ; International Journal of Cast Metals Research
ISSN	1364-0461 ; 1364-0461
卷号	23 期号:2 页码:119-123
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.; 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.
部门归属	[fu, j. w.; yang, y. s.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [guo, j. j.] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china.;fu, jw (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ysyang@imr.ac.cn ; [fu, j. w.; yang, y. s.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [guo, j. j.] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china.;fu, jw (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ysyang@imr.ac.cn
关键词	Stainless Steel Stainless Steel Directional Solidification Directional Solidification Phase Selection Phase Selection Microstructure Microstructure Austenitic Stainless-steels Austenitic Stainless-steels Rapid Solidification Rapid Solidification Phase Selection Phase Selection Gamma-transition Gamma-transition Laser Treatment Laser Treatment Growth Growth Welds Welds Evolution Evolution Delta Delta Nucleation Nucleation
URL	查看原文 ; 查看原文
WOS记录号	WOS:000275308000006 ; WOS:000275308000006
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31110
专题	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, Microstructure selection of Fe-Cr-Ni alloy during directional solidification[J]. International Journal of Cast Metals Research, International Journal of Cast Metals Research,2010, 2010,23, 23(2):119-123, 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.