On the Destructive Behavior of Carbon Steel Forgings Due to Impact Bending (II)

Abstract

(i) Effect of Carbon Contents The Carbon Contents of the Carbon Steel Forgings used are from 0.20 to 0.55% inclusive, and their forging ratio about 22. The time required for destruction and energy consumed for destruction are both decreased as the Carbon Contents increased. But the behaviors of the Yield Point have no relation to the carbon contents and hold constant values so far as the impact velocities are constant. (ii) Effect of Forging Ratio We made several kinds of forgings (their forging ratio from 1.0 to 64 inclusive) from the carbon steel ingot (its carbon contents 0.26%). The time required for destruction and energy consumed for destruction are proportional to the forging ratio so far as Forging Ratio ≨ 15.2.