基于非均匀温度场的GCr15轴承钢均匀化轧制  

Homogenizing rolling technology of GCr15 bearing steel based on non-uniform temperature field

作　　者：邢鹏达 王玉辉 王志蒙 曹文全[2] 王天生[3] 彭艳 

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]钢铁研究总院特殊钢研究所,北京100081 [3]燕山大学亚稳材料制备与科学国家重点实验室,河北秦皇岛066004

出　　处：《钢铁》2017年第10期59-64,共6页Iron and Steel

基　　金：河北省高等学校高层次人才科学研究项目资助项目(GCC2014039);重型机械协同创新资助项目(JX2014-09);"十三五"专项资助项目(2016YFB0300101)

摘　　要：针对GCr15轴承钢线棒材生产时易出现的内部组织不均匀及低倍组织缺陷等传统均温轧制无法解决的问题,提出了基于非均匀温度场的均匀化轧制技术。采用DEFORM有限元软件模拟了非均匀温度场条件下GCr15轴承钢线棒材的孔型轧制,并与传统的均温轧制方式进行对比。此外,利用Gleeble热模拟技术对非均温轧制模拟结果进行了试验验证。结果表明,非均温轧制可以有效增加GCr15轴承钢心部变形量,细化心部组织,可以明显改善GCr15轴承钢线棒材轧制过程中出现的内部组织不均匀及低倍组织缺陷问题。Aim to improve the uneven internal organization and low magnification microstructure defects in GCrl5 steel, which could not be solved by the conventional way, the rolling technology based on non-uniform temperature field was proposed in the current study. Under non-uniform temperature field, the rolling process of GCrl5 steel was simulat- ed by using DEFORM finite element software and compared with the conventional way. Besides, the Gleeble physical simulation technology was employed to validate the simulation results. The results of simulation and experiment show that the deformation and the fined structure at the center were increased and the problem of the uneven internal organiza- tion and low magnification microstructure defects of GCrl5 steel were improved by rolling technology base on non-uni- form temperature field.

关 键 词：GCR15轴承钢 非均温 轧制 晶粒 

分 类 号：TG335[金属学及工艺—金属压力加工]