不同终冷温度对工程机械用钢组织和性能的影响  

Effect of Final Cooling Temperature on Microstructure and Properties of Steel Used in Engineering Machinery

作　　者：李斌[1] 

机构地区：[1]新乡职业技术学院,河南新乡453006

出　　处：《铸造技术》2014年第4期728-729,共2页Foundry Technology

基　　金：河南省科技厅决策研究招标课题资助(2011B248)

摘　　要：以超低碳贝氏体钢为研究对象,实验分析了不同终冷温度对该材料抗拉强度、屈服强度、屈强比的影响,并观察了不同终冷温度试样的显微组织。结合文献理论分析了终冷温度对钢显微组织的影响,从讨论了对实验钢力学性能影响机理。结果表明,实验钢伸长率随终冷温度的降低而降低,抗拉强度和屈服强度随着终冷温度的降低而升高。Taking low carbon bainitic steel as resea rch object, the influences of different final cooling temperature on the tensile strength, yield strength and yield ratio of the materials were analyzed by experiments, and the microstructure of different final cooling temperature were observed. The effects of final cooling temperature on the microstructure of the steel were analyzed combined with the literature theory, and the influence mechanism of final cooling temperature on the comprehensive mechanics performance was discussed. The results show that the experimental steel elongation with the final cooling temperature lower and lower, tensile strength and yield strength with the reduce of the final cooling temperature rises.

关 键 词：低碳贝氏体钢 终冷温度 贝氏体 

分 类 号：TG142.15[一般工业技术—材料科学与工程]