Determine the carburizing time necessary to achieve a carbon con

Determine the carburizing time necessary to achieve a carbon concentration of 0.45 wt% at a position 2 mm into an iron窶田arbon alloy that initially contains 0.20 wt% C. The surface concentration is to be maintained at 1.30 wt% C, and the treatment is to be conducted at 1000(C. Use the diffusion data for g-Fe in Table5.2.