35CrMo钢低温韧性试验研究  

Research on Low Temperature Toughness Test of 35CrMo Steel

作　　者：张秋红[1] 樊湘芳[1] 赵健明 方稷丰 申龙章[1] 

机构地区：[1]南华大学机械工程学院,湖南衡阳421001 [2]衡阳市华菱钢管有限公司,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2017年第3期52-55,共4页Journal of University of South China：Science and Technology

基　　金：湖南省质量工程项目:南华大学-南岳电控(衡阳)工业技术有限公司机械类专业校企合作人才培养示范基地(湘教通[2014]272号);湖南省大学生研究性学习和创新性实验计划项目(湘教通[2016]283号)

摘　　要：针对35CrMo钢石油套管调质处理后低温冲击韧性偏低且不稳定的问题,对35CrMo钢进行"零保温"热处理试验.结果表明:与常规调质热处理相比,"零保温"热处理的35CrMo钢获得非常细小的回火索氏体,在不降低强度的前提下能有效改善其低温韧性.因节省了保温时间,能耗可较大程度降低.'Zero insulation'heat treatment was done to 35 CrMo steel to solve the problem of low toughness and the instability of 35 CrMo steel oil casting after treated by quenching and tempering.The results show that 35 CrMo steel treated by 'zero insulation'heat treatment can obtain very fine sorbite compared with the traditional heat treatment,which can improve remarkably the low temperature toughness of the steel without reducing the strength.At the same time,the 'zero insulation'heat treatment can reduce the energy consumption to a greater extent as it saves the holding time.

关 键 词：零保温 35CrMo 热处理 低温冲击韧性 

分 类 号：TG156[金属学及工艺—热处理]