摘要
以06Cr19Ni10不锈钢为研究对象,对轧制强化的主要因素(轧制变形量、试验温度、轧制前冷却保持时间)进行正交试验,借助光学显微镜、GL2011离子抛光仪、离子减薄仪、透射电镜、X射线衍射仪、微力材料试验机和扫描电镜,对不锈钢轧制过程中的显微组织演变规律进行研究。结果表明:轧制变形量对α'-马氏体转变量的影响程度最大,试验温度次之,轧制前冷却保持时间的影响可以忽略。得出的最优工艺参数组合为轧制变形量为90%、试验温度为273 K、轧制前冷却保持时间10 min时,α'-马氏体的转变量达到本次试验的最大值为94. 2%,孪晶与位错交互作用剧烈,奥氏体相已经几乎完全转变为马氏体相,轧制强化效果最好。
The orthogonal test about main factors of rolling strength (rolling deformation,test temperature,cooling time before rolling) of 06Cr19Ni10 stainless steel was carried out. The evolution rule of microstructure in stainless steel rolling is studied by means of optical microscope,polishing machine,ions reduction,transmission electron microscopy,X-ray diffractometer,micro force material testing machine and scanning electron microscopy. The results show that the influence of rolling deformation on the transformation of α’-martensite precipitation amount is the best,the second is test temperature,and the effect of cooling holding time before rolling can be ignored. It is concluded that the optimal process parameters including the rolling deformation of 90% at 273 K for 10 min before rolling cooling,by which,the α’-martensite transformation volume reaches maximum of 94. 2%. With the severe interaction of twin and dislocation,and the austenitic phase nearly totally transforms into martensite phase,then the rolling strengthening effect becomes the best.
作者
黄可
陶永德
刘江
丁仁华
Huang Ke;Tao Yongde;Liu Jiang;Ding Renhua(Institute of Mechanical Engineering, Changzhou Vocational Institute of Mechatronic Technology,Changzhou Jiangsu 213164,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2019年第3期153-159,共7页
Heat Treatment of Metals
基金
常州机电职业技术学院院级课题(2017-zdkj-02)
常州市工业机器人系统集成技术重点实验室(CM20153002)
江苏省高等职业教育高水平骨干专业建设项目(苏教高【2017】17号)
作者简介
黄可(1987-),男,实验师,高级技师,主要从事金属材料研究,发表论文10余篇,联系电话:13401538490, E-mail:244193480@qq.com.
