Study on Microstructure and Property of H13 Die Steel with Nitrogen

被引:1
作者
Chen Yulai Liu Biao Zhao Peng Tang Di Li Jingyuan University of Science and Technology Beijing Beijing China [100083 ]
机构
关键词
H13; steel; nitrogen; chemical composition; mechanical property;
D O I
暂无
中图分类号
TG142.4 [各种钢材:按用途区分];
学科分类号
摘要
Composition segregation and microstructure nonuniform of H13 steel have been obviously improved though adding nitrogen element. The microstructure and property of H13 steel with nitrogen contents of 0.021% and 0.085% are studied under various quenching and tempering states. Dual quenching that is quenching between 1000-1010 ℃ twice is employed in order to increase the tensile strength and hardness of coupons. The temperature and time are explored for improving the toughness under optimal quenching treatment. For extrusion die steel, the tensile strength can reach a satisfactory level and impact toughness are met the requirements of NADCA at the temperature.
引用
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页码:234 / 236
页数:3
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