[1]秦世斌,杨聪俐,赵大力,等.淬火和回火温度对GX160CrMoV12钢显微组织和力学性能的影响[J].郑州大学学报(工学版),2021,42(03):70.
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淬火和回火温度对GX160CrMoV12钢显微组织和力学性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
42
期数:
2021年03期
页码:
70
栏目:
出版日期:
2021-05-10

文章信息/Info

作者:
秦世斌 杨聪俐 赵大力 董祥雷 赵红亮
文献标志码:
A
摘要:
高碳高铬钢具有高硬度,但钢中存在网状共晶碳化物,使用时易断裂为了改善GX160CrMoV12钢的组织和力学性能,采用OM¸SEM观察,硬度测试,冲击韧度测试和XRD测试等方法,研究了淬火和回火温度GX160CrMoV12钢组织与力学性能的影响结果表明:GX160CrMoV12钢淬火后的组织为马氏体+残余奥氏体+碳化物随着淬火温度升高,共晶碳化物逐渐溶解,马氏体尺寸变大,残余奥氏体含量升高,硬度先升高再降低,最优淬火温度为1040℃GX160CrMoV12-Ti-Ni-Y钢在回火后基体是回火马氏体,随着回火温度升高,硬度下降,冲击韧度升高,最优回火温度为200℃。
Abstract:
High carbon high chromium steel had high hardness,but there were network eutectic carbides in the steel,which made the steel easy to break when used. In order to improve the structure and mechanical properties of GX160CrMoV12 steel,OM,SEM observation,hardness test ,impact toughness test and XRD test were used to study the effect of quenching and tempering temperature on the structure and mechanical properties of GX160CrMoV12 steel. The results showed that the structure of GX160CrMoV12 steel after quenching was martensite + residual austenite + carbide.As the quenching temperature increased,the eutectic carbide gradually dissolved, the size of martensite became larger, the content of residual austenite increased,and the hardness increased first and then decreased. The optimal quenching temperature was 1 040℃ the matrix of GX160CrMoV12-Ti-Ni-Y steel was tempered martensite after tempering. As the tempering temperature increased,the hardness decreased and the impact toughness increased. The optimal tempering temperature was 200 ℃.
更新日期/Last Update: 2021-06-24