金属热处理 ›› 2021, Vol. 46 ›› Issue (6): 41-44.DOI: 10.13251/j.issn.0254-6051.2021.06.09

• 工艺研究 • 上一篇    下一篇

Cr含量和加热温度对高铁弹条用60Si2Mn弹簧钢脱碳层的影响

包万遥1, 李金波1, 高秀华1, 陈红卫2, 李绍杰3, 吴红艳1, 张志新2, 杜林秀1   

  1. 1.东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳 110819;
    2.河钢集团钢研总院 河北 石家庄 050031;
    3.河钢集团石钢公司, 河北 石家庄 050031
  • 收稿日期:2021-02-03 出版日期:2021-06-25 发布日期:2021-07-21
  • 通讯作者: 李金波,男,高级工程师,博士,E-mail:lijinbonet@163.com
  • 作者简介:包万遥(1996—),男,硕士研究生,主要研究方向为材料组织性能控制,E-mail:baowan.yao@163.com。
  • 基金资助:
    国家高技术研究发展计划(863计划)(2015AA03A5001)

Effect of Cr content and heating temperature on decarburized layer of 60Si2Mn spring steel for high-speed rail spring

Bao Wanyao1, Li Jinbo1, Gao Xiuhua1, Chen Hongwei2, Li Shaojie3, Wu Hongyan1, Zhang Zhixin2, Du Linxiu1   

  1. 1. State Key Laboratory of Rolling and Automation, Northeast University, Shenyang Liaoning 110819, China;
    2. Hesteel Group Central Iron and Steel Research Institute, Shijiazhuang Hebei 050023, China;
    3. Hesteel Group Shisteel Company, Shijiazhuang Hebei 050031, China
  • Received:2021-02-03 Online:2021-06-25 Published:2021-07-21

摘要: 通过提高高铁铁轨扣件系统中的弹条用60Si2Mn弹簧钢中的Cr元素含量,分析了不同加热温度下钢的脱碳情况,研究了Cr元素以及加热温度对60Si2Mn弹簧钢脱碳层组织形貌及厚度的影响。结果表明,Cr元素含量提高至0.35%后,弹簧钢在不同加热温度下的脱碳层厚度都有明显减少,当加热温度在900 ℃以上时只存在部分脱碳现象,且脱碳层厚度随着加热温度的升高而增加。

关键词: 60Si2Mn弹簧钢, 耐蚀元素, 加热温度, 脱碳层, 微观组织

Abstract: Through increasing Cr element content in the 60Si2Mn spring steel for fastener system of high-speed rail and analyzing its decarburization under different heating temperature, the influence of Cr element and heating temperature on microstructure and thickness of the decarburized layer on the spring steel were determined. The results show that the thickness of the decarburized layer under different heating temperatures is obviously reduced when increasing the Cr element content to >0.35%, and only partial decarburization exists when the heating temperture is above 900 ℃. At the same time, the thickness of the decarburized layer increases with the increase of heating temperature.

Key words: 60Si2Mn spring steel, corrosion-resistant element, heating temperature, decarburized layer, microstructure

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