铈元素对H13模具钢等向性能影响的研究  

Influence of Cerium Element on Isotropic Properties of H13 Die Steel

作　　者：邓开国[1,2] 李长荣[1,2] 杨远梅[1] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]贵州省冶金工程与过程节能重点实验室,贵州贵阳550025

出　　处：《中国稀土学报》2016年第4期439-443,共5页Journal of the Chinese Society of Rare Earths

基　　金：贵州省科技厅重点工业攻关项目(黔科合GY[2012]3016)资助

摘　　要：对H13热作模具钢进行了Ce元素处理,配合等温球化热处理工艺,开展了对H13钢等向性能的研究。采用JBN-300摆锤式冲击试验机对冲击韧性进行了检测,采用MICROHARDNESS TESTER HV-1000显微硬度仪对显微硬度进行了检测。结果表明:随Ce含量的增加,H13钢的横、纵向力学性能呈先增加后减小的趋势,当Ce含量为0.05%时钢的等向性能有大幅提高且达到最大值91.10%;Ce元素对显微硬度影响不大;添加Ce元素钢的等向性能都有不同程度的增加。H13 hot-working die steel was treated with adding of rare earth Ce element. The isotropic performance of H13 steel was studied along with isothermal spheroidizing heat treatment. The impact toughness was tested by JBN-300 pendulum impact test machine,and the micro-hardness was measured by TESTER HV-1000 MICROHARDNESS micro hardness tester. The results showed that with the increase of Ce,the transverse and longitudinal mechanical properties of H13 steel tend to firstly increased and then decreased,when Ce content was 0. 05%,isotropic performance of H13 die steel significantly increased to the maximum value of 91. 10%. Ce has little effect on the micro-hardness. The isotropic performance of H13 die steel increases differently by adding Ce.

关 键 词：H13钢 等温球化热处理 冲击韧性 等向性能 稀土 

分 类 号：TF03[冶金工程—冶金物理化学]