铈对Cr9Mo耐热钢的组织及性能的影响  

Effect of Cerium on Microstructure and Properties of Cr9Mo Heat Resistant Steel

作　　者：张迎春[1,2] 左著 

机构地区：[1]衡阳财经工业职业技术学院,湖南衡阳421008 [2]衡阳华菱钢管集团有限公司,湖南衡阳421001

出　　处：《稀土》2012年第4期33-37,共5页Chinese Rare Earths

摘　　要：采用金相显微分析、X射线能谱、扫描电子显微镜、显微硬度仪、拉伸性能、室温冲击韧性等分析手段,初步研究了Ce对Cr9Mo耐热钢显微组织和力学性能的影响,通过实验与分析得出,Ce加入量小于0.5%时,Ce能起到净化基体和细化晶粒尺寸的作用,对Cr9Mo耐热钢的综合力学性能有一定的改善。The effects of Ce on microstructure and mechanical properties of Cr9Mo steel were investigated by metallographic microscopic analysis,X-ray energy dispersive spectrometer,scanning electron microscope,micro hardness tester,tensile test and room-temperature impact toughness test.The results showded that,when addition amount of Ce is less than 0.5%,the microstructure of Cr9Mo steel is obviously refined,room temperature and high temperature（610 ℃） tensile strength and hardness of the room temperature decrease,elongation at break increases,and the plasticity increases.

关 键 词：CE Cr9Mo钢 显微组织 力学性能 

分 类 号：TG142.13[一般工业技术—材料科学与工程] O614.33[金属学及工艺—金属材料]