两相区淬火对14MnCrMoNiNb钢组织和性能的影响  

Effects of Quenching in Two-phase Region on Microstructure and Properties of 14MnCrMoNiNb Steel

作　　者：贺景春[1] 姜涛[2] 李智丽[1] 余泽金[1] 姜海龙[1] 米永峰[2] He Jing-chun;Jiang Tao;Li Zhi-li;Yu Ze-jin;Jiang Hai-long;Mi Yong-feng(Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China;Steel Tube Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China)

机构地区：[1]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司钢管公司,内蒙古包头014010

出　　处：《包钢科技》2019年第4期1-3,共3页Science & Technology of Baotou Steel

摘　　要：试验采用14MnCrMoNiNb钢,进行了淬火+两相区淬火+回火工艺(QQ’T)研究,试验结果表明,QQ’T工艺可以获得回火索氏体+少量铁素体的复相组织,在不损失材料强度和韧性的前提下,可以使材料的屈强比降低到0. 80左右,从而大幅提高材料的使用安全性能。The experiment with 14 MnCrMoNiNb steel was for studying quenching + quenching in two-phase region + tempering process( QQ’T). The experimental results showed that the multiphase microstructure of tempered sorbite + a small amount of ferrite could be obtained with the QQ’T process. On the premise of without losing the strength and toughness of material,the yield ratio of material could be reduced to about 0. 80 so that the serviceability safety performance of material could be improved greatly.

关 键 词：14MnCrMoNiNb 淬火 两相区淬火 回火 屈强比 

分 类 号：TG113.1[金属学及工艺—物理冶金] TG113.2[金属学及工艺—金属学]