Effects of heat treatment on the microstructures and mechanical properties of a new type of nitrogen-containing die steel

查看全文 作　　者：Jing-yuan [1]Li;Peng [2]Zhao;Jun [3]Yanagimoto;Sumio [3]Sugiyama;Yu-lai [4]Chen

机构地区：[1]School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;[2]Institute of Radar and Avionics, Aviation Industry Corporation of China, Suzhou 215151, China;[3]Institute of Industrial Science, the University of Tokyo, Tokyo 153-8505, Japan;[4]Engineering Research Institute, University of Science and Technology Beijing, Beijing 100083, China

出　　处：《International Journal of Minerals,Metallurgy and Materials》索引2012年第19卷第6期,共7页

基　　金：supported by the National Natural Science Foundation of China (Nos.50974014 and 51174026) 摘　　要：Nitrogen can increase the strength of steels without weakening the toughness and improve the corrosion resistance at the same time. Compared with conventional nitrogen-free die steels, a new type of nitrogen-containing die steel was developed with many superior properties, such as high strength, high hardness, and good toughness. This paper focused on the effects of heat treatment on the microstruc-tures and mechanical properties of the new type of nitrogen-containing die steel, which were investigated by the optimized deformation process and heat treatment. Isothermal spheroidal annealing and high-temperature quenching as well as high-temperature tempering were ap-plied in the experiment by means of an orthogonal method after the steel was multiply forged. The mechanical properties of nitro-gen-containing die steel forgings are better than the standard of NADCA #207-2003. 关键词：力学性能模具钢热处理含氮显微组织等温球化退火正交试验法耐腐蚀性

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Effects of heat treatment on the microstructures and mechanical properties of a new type of nitrogen-containing die steel

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