Rmin of prohibiting carbon deposition was calculated on certain condition of coal gas composition,temperature,pressure and velocity by Broyden method.

Effect of Carbon Segregation and Residual B on Hardenability of Bearing Steel 20CrMnTiH1;

Effect of mould electromagnetic stirring on carbon segregation of medium carbon continuous casting bloom;

Results show that the primary cause to the laminar defect of the umbrella bone steel in the process of cold bending to U-shape is the severe carbon segregation in the steel band.

The Time-Temperature-Transformation relation for the carbon eutectoid steel is deduced theoretically,based on the theory of diffusion and the theory of the heterogeneous nucleationThe deduction is agreeable to the experimental results

According to many years of spectral analysis practice,the important factors which affect carbon content analysis,such as environment,standard test specimen,argon purity and current capacity and whiteiron transformation and so on,are discussed.