Effects of Si and Cr on Complete Decarburization Behavior of High Carbon Steels in Atmosphere of 2 vol.% O2
Yang-bo LIU1,2,Wei ZHANG1,Qian TONG1,Qi-song SUN1
1. Shougang Research Institute of Technology, Beijing 100043, China 2. Beijing Key Laboratory of Green Recyclable Process for Iron & Steel Production Technology, Beijing 100043, China
Effects of Si and Cr on Complete Decarburization Behavior of High Carbon Steels in Atmosphere of 2 vol.% O2
Yang-bo LIU1,2,Wei ZHANG1,Qian TONG1,Qi-song SUN1
1. Shougang Research Institute of Technology, Beijing 100043, China 2. Beijing Key Laboratory of Green Recyclable Process for Iron & Steel Production Technology, Beijing 100043, China
ժҪ The effects of chemical compositions, especially silicon and chromium contents, on the complete decarburization behaviors of steels in atmosphere of 2 vol.% O2 and 98 vol.% N2 were investigated by using a simultaneous thermal analyzer. Complete decarburization was observed at both 750 and 800 �� for 60Si2MnA steel, while 750 �� only for 92A steel. For GCr15 steel, no decarburization was found at 750 or 800 ��, and only partial decarburization was observed at 850 ��. It indicates that silicon promotes while chromium prevents the complete decarburization of steels in atmosphere with 2 vol.% O2. The main reason is that silicon increases while chromium reduces the equilibrium concentration of ferrite at the interface of ferrite and austenite, which results in the complete decarburization.
Abstract��The effects of chemical compositions, especially silicon and chromium contents, on the complete decarburization behaviors of steels in atmosphere of 2 vol.% O2 and 98 vol.% N2 were investigated by using a simultaneous thermal analyzer. Complete decarburization was observed at both 750 and 800 �� for 60Si2MnA steel, while 750 �� only for 92A steel. For GCr15 steel, no decarburization was found at 750 or 800 ��, and only partial decarburization was observed at 850 ��. It indicates that silicon promotes while chromium prevents the complete decarburization of steels in atmosphere with 2 vol.% O2. The main reason is that silicon increases while chromium reduces the equilibrium concentration of ferrite at the interface of ferrite and austenite, which results in the complete decarburization.
Yang-bo LIU,,Wei ZHANG,Qian TONG,Qi-song SUN. Effects of Si and Cr on Complete Decarburization Behavior of High Carbon Steels in Atmosphere of 2 vol.% O2[J]. �й������ڿ���, 2016, 23(12): 1316-1322.
Yang-bo LIU,,Wei ZHANG,Qian TONG,Qi-song SUN. Effects of Si and Cr on Complete Decarburization Behavior of High Carbon Steels in Atmosphere of 2 vol.% O2. Chinese Journal of Iron and Steel, 2016, 23(12): 1316-1322.
2016, Vol. 23 
