Alloying Design for High Wear-Resistant Cast Hot-Forging Die Steels  

作　　者：CUI Xiang-hong SHAN Jun YANG Zi-run WEI Min-xian WANG Shu-qi DONG Chuang 

机构地区：[1]School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China [2]Harbin Zhuoyue Information Technology Advance Limited Company, Harbin 150001, Heilongjiang, China [3]State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, Liaoning, China

出　　处：《Journal of Iron and Steel Research International》2008年第4期67-72,共6页

基　　金：Item Sponsored by Hi-Tech Research and Development Program of China (2002AA331180);State Key Laboratory of Materials Modification by Laser,Ion and Electron Beams(0708)

摘　　要：The alloying design of cast hot-forging die steels was analyzed. The relationship of the life of cast hot-forging dies with the failure patterns was studied. The thermal wear resistance was believed to be the key property for the alloying design of cast hot-forging die steels. The alloying design parameters were selected and optimized for the cast hot-forging die steel with high wear resistance. The wear resistance of the optimized cast die steel was evaluated in comparison with commercial H13 steels and 3Cr2WSV steel. In the new cast hot-forging die steel, VC is predominant carbide with Cr and Mo as the main solution elements in α-Fe. It is found that the cast die steel has significantly lower wear rate than normal H13 steel and 3Cr2W8V steel, almost the same as that of high purity H13 steel. The high wear resistance of the new cast hot-forging die steel can be attributed to its reasonable alloying design and nonsensibility to the detrimental function of S and P.The alloying design of cast hot-forging die steels was analyzed. The relationship of the life of cast hot-forging dies with the failure patterns was studied. The thermal wear resistance was believed to be the key property for the alloying design of cast hot-forging die steels. The alloying design parameters were selected and optimized for the cast hot-forging die steel with high wear resistance. The wear resistance of the optimized cast die steel was evaluated in comparison with commercial H13 steels and 3Cr2WSV steel. In the new cast hot-forging die steel, VC is predominant carbide with Cr and Mo as the main solution elements in α-Fe. It is found that the cast die steel has significantly lower wear rate than normal H13 steel and 3Cr2W8V steel, almost the same as that of high purity H13 steel. The high wear resistance of the new cast hot-forging die steel can be attributed to its reasonable alloying design and nonsensibility to the detrimental function of S and P.

关 键 词：hot-forging die cast steel wear resistance alloying design 

分 类 号：TG14[一般工业技术—材料科学与工程]