Mo含量对耐火建筑钢组织及性能的影响  

Effect of Mo Content on Microstructure and Properties of Refractory Steel

作　　者：侯佳[1] 涂勇[2] 

机构地区：[1]郑州职业技术学院,河南郑州450121 [2]河南职业技术学院,河南郑州450007

出　　处：《热加工工艺》2015年第14期101-103,共3页Hot Working Technology

基　　金：河南省软科学研究项目(132400410726)

摘　　要：采用金相显微镜、扫描电镜、透射电镜、万能试验机和冲击试验等法表征了耐火钢的组织和性能。结果表明,0.18Mo+B系列耐火钢主要为等轴或块状铁素体和小岛组成,先共析铁素体含量较少;0.30Mo系列耐火钢组织主要为大量等轴或块状先共析铁素体。0.18Mo+B系列耐火钢室温强度高于0.36 Mo,韧性低于0.36Mo。Nb元素对耐火钢强化效果优于V元素,V元素对耐火钢的韧性提高影响较大。The metallographic microscope, scanning electron microscopy（SEM）, transmission electron microscopy（TEM）,universal testing and impact test were used to characterize the structure and properties of refractory steel. The results show that there are mainly shaft or blocky ferrite and islands on 0.18Mo＋B series refractory, and with less proeutectoid ferrite content. The0.30 Mo series refractory steel is mainly for large shaft or massive proeutectoid ferrite. The room temperature strength of 0.18Mo＋B series is higher than that of 0.36 Mo, and the toughness is lower than that of 0.36 Mo. The Nb element of refractory steel reinforcement effect is superior to the element of V. V elements has greatly influenced on the toughness of refractory steel.

关 键 词：耐火钢 MO 金相组织 力学性能 

分 类 号：TG156.3[金属学及工艺—热处理]