Abstract
Electrodeposited chromium of 30μm in thickness was diffused into its 0.2% C substrate steel by high-frequency induction heating; the frequency varied from 8kHz to 9MHz. Interdiffusion coefficient between chromium and iron was greater in high-frequency induction heating than in conventional electric heating, and showed a maximum value within the above range. It is concluded that the skin effect produced by the high-frequency induction heating causes an increase in the rate of chromium diffusion into carbon steel.
