TOUGHENING EFFECT OF Zn ON STEELS
Zn对钢的韧化效应

An improvement of toughness by microalloying of Zn over the steels, from 20% to 200%, may mainly increase both the tearing work during impact rupture. Zn is so bettered the drawing strength of the matrix slip that a remarkable feature of "drawing tongue"occurred on the macrofracture surface of the steels.