Advances in Materials Science and Engineering

Research Article

Modeling of the Growth Kinetics of Boride Layers in Powder-Pack Borided ASTM A36 Steel Based on Two Different Approaches

Table 1

Experimental values of parabolic growth constants at the (Fe2B/substrate) interface in the range of 1123–1273 K and estimated values of boron diffusion coefficients in the Fe2B layers by using the first approach.
Temperature (K)Type of layerGrowth constants (m2s−1) equation (19) (m2s−1)
1123Fe2B2.810 × 10−14.28 × 10−11
11736.120 × 10−19.32 × 10−11
122312.80 × 10−11.95 × 10−10
127320.89 × 10−13.18 × 10−10