Novel ledeburite cast die steel with granular carbide was fabricated to increase the strength and toughness of conventional ledeburite cast die steel with network carbide.

• 研制了含粒状碳化物的新型莱氏体型铸造模具钢，发现其可使传统莱氏体型铸造模具钢的低强韧性得以提高，并探讨了其磨损机理。