金属热处理 ›› 2020, Vol. 45 ›› Issue (5): 115-118.DOI: 10.13251/j.issn.0254-6051.2020.05.021

• 工艺研究 • 上一篇    下一篇

连续冷却速度对挖掘机履带用钢15B36-M相变和显微组织的影响

张群, 王德勇, 阚开   

  1. 本钢板材股份有限公司 技术研究院, 辽宁 本溪 117000
  • 收稿日期:2019-10-17 出版日期:2020-05-25 发布日期:2020-09-02
  • 作者简介:张 群(1981—),男,高级工程师,硕士,主要研究方向为特殊钢的研发,E-mail: 41479105@qq.com

Effect of continuous cooling rate on phase transformation and microstructure of 15B36-M track steel for excavator

Zhang Qun, Wang Deyong, Kan Kai   

  1. Product Research Institute, Bengang Steel Plates Co., Ltd., Benxi Liaoning 117000, China
  • Received:2019-10-17 Online:2020-05-25 Published:2020-09-02

摘要: 采用热模拟试验研究不同冷却速度对挖掘机履带用钢15B36-M相变及显微组织的影响,对试样以0.5、1、2、5、8、10、15、20、25、30、35和40 ℃·s-1等12个不同的冷却速度进行冷却。结果表明,在不同的冷却速度下,15B36-M钢的热膨胀曲线组织转变温度不同,可通过CCT曲线来指导15B36-M钢材的轧制过程以得到需要的组织形态。

关键词: 15B36-M钢, 冷却速度, 热模拟试验, 显微组织

Abstract: Effect of different cooling rates on the phase transformation and microstructure of 15B36-M track steel for excavator was studied by thermal simulation test, and the specimens were cooled at the different cooling rates of 0.5, 1, 2, 5, 8, 10, 15, 20, 25, 30, 35 and 40 ℃·s-1. The results show that at different cooling rates, the thermal expansion curve of the 15B36-M steel has different microstructure transformation temperatures. The CCT curve can be used to guide the rolling process of the 15B36-M steel to obtain required microstructures.

Key words: 15B36-M steel, cooling rate, thermal simulation test, microstructure

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