Study on Carburizing Kinetics of Low-carbon Steel at High-temperature and Short-term
来源期刊：JOURNAL OF RARE EARTHS2007年增刊第1期
论文作者：Lu Sheng Xiao Nianxin Zhang Hailong
Key words：low-carbon steel; high-temperature carburizing of liquid cast-iron; kinetics; carburizing microstructure; rare earths;
Abstract: In this paper, the carburizing kinetics of low-carbon steel at high-temperature and short-term in liquid cast-iron were studied by metallographic microscope, chemical analysis and so on, and the microstructure of carburized layer was also analyzed. The results show that the carburizing rate of low-carbon steel at high-temperature and short-term is so fast, and the microstructure of carburized layer possess higher carbon content, and cementite, pearlite and ferrite exist in carburized layer structure simultaneously. Besides, the kinetic equations of permeating layer forming have been presented, and the carburizing mechanism was preliminary discussed also.
Lu Sheng1，Xiao Nianxin2，Zhang Hailong2
(1.Department of Applied Technology, Daqing Petroleum Institute, Daqing 163318, China;
2.Department of Machinery and Electron, Hebei Normal University of Science & Technology, Qinhuangdao 066004, China)
Abstract:In this paper, the carburizing kinetics of low-carbon steel at high-temperature and short-term in liquid cast-iron were studied by metallographic microscope, chemical analysis and so on, and the microstructure of carburized layer was also analyzed. The results show that the carburizing rate of low-carbon steel at high-temperature and short-term is so fast, and the microstructure of carburized layer possess higher carbon content, and cementite, pearlite and ferrite exist in carburized layer structure simultaneously. Besides, the kinetic equations of permeating layer forming have been presented, and the carburizing mechanism was preliminary discussed also.
Key words:low-carbon steel; high-temperature carburizing of liquid cast-iron; kinetics; carburizing microstructure; rare earths;
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