Abstract:Focus on the study of decarburization behavior of 1 mm iron-carbon alloy ribbons with carbon mass content of 4.2%,a series of gas-solid reaction experiments at different temperatures were carried out. The impact of different temperatures on the decarburization of Fe-C ribbons and the dynamics of decarburizing process were investigated with the atmosphere of Ar-H2-H2O mixed gas,the gas flow rate was set as 400 mL/min,and the ratio of[PH2O/PH2]was 0.85. The results showed that rising decarburizing temperature can improve the decarburization rate effectively. For example,the carbon content decreased to 0.12% after 30 min decarburization at 1 413 K. Apparent decarburizing process can be concluded as nearly first-order reaction. Apparent activation energy of the decarburizing process calculated is 157.9 kJ/mol. The surface gas-solid chemical reaction is the controlling step in initial decarburizing stage and then,the diffusion of carbon in ribbon bulk is the main controlling step in the following process.
李亚强,艾立群,李 强,程 荣,陈鹏飞,刘新亮. 1 mm铁碳合金薄带气-固反应脱碳试验[J]. 钢铁, 2017, 52(5): 19-23.
LI Ya-qiang,AI Li-qun,LI Qiang,CHENG Rong,CHEN Peng-fei,LIU Xin-liang. Experiment of gas-solid decarburization process of 1 mm Fe-C alloy ribbon. Iron and Steel, 2017, 52(5): 19-23.
Kohler, Frank H. Polymers ceramics, magnets… Introduction to Magnetism and Magnetic Materials, by D. Jiles, Chapman and Hall, London 1991, XXV, 440pp. £ 22.50, soft cover, ISBN 0‐412‐38640‐2[J]. Advanced Materials, 1992, 4(5):378-379.
[5]
Kohler, Frank H. Polymers ceramics, magnets… Introduction to Magnetism and Magnetic Materials, by D. Jiles, Chapman and Hall, London 1991, XXV, 440pp. £ 22.50, soft cover, ISBN 0‐412‐38640‐2[J]. Advanced Materials, 1992, 4(5):378-379.
[6]
Gunther K, Bolling F, Huneus H. Detrimental effect of oxidation on magnetic properties of nonoriented electrical steel sheet[J]. Journal of applied physics, 1988, 64(10): 5347-5349.
[6]
Gunther K, Bolling F, Huneus H. Detrimental effect of oxidation on magnetic properties of nonoriented electrical steel sheet[J]. Journal of applied physics, 1988, 64(10): 5347-5349.
[7]
Jiles D. Introduction to Magnetism and Magnetic Materials. London: Chapman & Hall, 1991. 272.
[7]
Jiles D. Introduction to Magnetism and Magnetic Materials. London: Chapman & Hall, 1991. 272.