Effect of Chemical Composition on Secondary Hardening of WD1 Steel Used for Warm Work Dies
A new kind of die steel, WD1 used for warm work dies, was developed. The secondary hardening behavior and its affecting factors were studied. The results show that the secondary hardness increases with the content of C, Mo and V elements and Si element can significantly improve the secondary hardening effect though it’s not one of secondary hardening elements. The hardness of WD1 steel tempered at 520°C is more than HRC60, which can meet the requirements of warm work dies.
Guojun Zhang and Jessica Xu
X. Zhao and X. L. Yang, "Effect of Chemical Composition on Secondary Hardening of WD1 Steel Used for Warm Work Dies", Advanced Materials Research, Vols. 160-162, pp. 369-372, 2011