In Situ Observation of Solidification Process of AISI 304 Austenitic Stainless Steel
HUANG Fu��xiang1,WANG Xin��hua1,ZHANG Jiong��ming1, JI Chen��xi1,FANG Yuan2,YU Yan2
1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China; 2. Advanced Technology Institute of Technology Center, Baoshan Iron and Steel Co Ltd, Shanghai 201900, China
In Situ Observation of Solidification Process of AISI 304 Austenitic Stainless Steel
HUANG Fu��xiang1,WANG Xin��hua1,ZHANG Jiong��ming1, JI Chen��xi1,FANG Yuan2,YU Yan2
1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China; 2. Advanced Technology Institute of Technology Center, Baoshan Iron and Steel Co Ltd, Shanghai 201900, China
ժҪ The solidification process of AISI 304 stainless steel during cooling at a rate of 0��05 K/s has been observed in situ using a confocal scanning laser microscope (CSLM). The results show that the �� phase appeared first in liquid steel, as the temperature decreased, the �� phase precipitated prior at �Ī�grain boundary at 1 452��2 ��, the liquid steel disappeared at 1 431��3 ��, and then the �� phase precipitated on the �� ferrite. Based on the Scheil��Gulliver solidification model, the solidification processes of AISI 304 stainless steel are simulated using the Scheil model in Thermo��Calc, and the simulation results agree well with the results observed in the experiment.
Abstract��The solidification process of AISI 304 stainless steel during cooling at a rate of 0��05 K/s has been observed in situ using a confocal scanning laser microscope (CSLM). The results show that the �� phase appeared first in liquid steel, as the temperature decreased, the �� phase precipitated prior at �Ī�grain boundary at 1 452��2 ��, the liquid steel disappeared at 1 431��3 ��, and then the �� phase precipitated on the �� ferrite. Based on the Scheil��Gulliver solidification model, the solidification processes of AISI 304 stainless steel are simulated using the Scheil model in Thermo��Calc, and the simulation results agree well with the results observed in the experiment.
HUANG Fu��xiang;WANG Xin��hua;ZHANG Jiong��ming;JI Chen��xi;FANG Yuan;YU Yan. In Situ Observation of Solidification Process of AISI 304 Austenitic Stainless Steel[J]. �й������ڿ���, 2008, 15(6): 78-0.
HUANG Fu��xiang;WANG Xin��hua;ZHANG Jiong��ming;JI Chen��xi;FANG Yuan;YU Yan. In Situ Observation of Solidification Process of AISI 304 Austenitic Stainless Steel. Chinese Journal of Iron and Steel, 2008, 15(6): 78-0.
2008, Vol. 15 
