理化检验-物理分册2025，Vol.61Issue(2)：6-10,5.DOI:10.11973/lhjy-wl240020
两种坯型生产的高铁弹条用60Si2Mn钢盘条显微组织和性能
Microstructure and properties of 60Si2Mn steel wire rod for high-speed railway bullets produced by two different shapes
邓素怀 1刘奋永 2来萍 1张玮 1刘锟1
作者信息
- 1. 首钢集团有限公司 技术研究院,北京 100043
- 2. 北京铁科首钢轨道技术有限公司,北京 102206
- 折叠
摘要
Abstract
The microstructure and mechanical properties of 60Si2Mn steel wire rods produced from different sizes of continuous casting billets were analyzed using metallographic examination,electron backscatter diffraction analysis,hardness testing.The results show that the chemical composition,microstructure and mechanical properties after heat treatment of the wire rods produced using two different blank shapes were relatively similar,but there was a significant difference in grain size.The wire rods produced using large blank shapes had larger austenite grain size and pearlite cluster size.When it was necessary to assure the internal quality and grain refinement of the wire rod,large billets could be used for production.By increasing the deformation during the rough rolling stage and optimizing the continuous casting process parameters,the grain could be refined to improve the quality of the wire rod.关键词
高铁弹条/60Si2Mn钢盘条/连铸坯/晶粒尺寸/力学性能/显微组织Key words
high-speed rail bullet bar/60Si2Mn steel wire rod/continuous casting billet/grain size/mechanical property/microstructure分类
通用工业技术引用本文复制引用
邓素怀,刘奋永,来萍,张玮,刘锟..两种坯型生产的高铁弹条用60Si2Mn钢盘条显微组织和性能[J].理化检验-物理分册,2025,61(2):6-10,5.
