气体渗碳中表面碳浓度增长动力学及传递系数β的研究
The Kinetics of the Increase in Surface C_ concentration and the Transfer Coefficient in Gas Carburization
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摘要: 本文研究了气体渗碳过程中表面碳浓度增长动力学规律,论证了气体渗碳过程属于界面反应和扩散混合控制型,测定了碳传递系数β值,并讨论了β的主要影响因素.Abstract: This paper deals with the kinetics to increase in surtace C_ concentration. It has proved that the process ot gas curburization is controlled by boundary reaction and diffusion together. The transfer coefficient β has been measured and the factors that infouence β are also disscussed.