东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (10): 1427-1431.DOI: 10.12068/j.issn.1005-3026.2014.10.014

• 材料与冶金 • 上一篇    下一篇

电感应再加热对低合金钢热轧组织影响的模拟

陈泽军1，李宏图2，张静1，黄光杰1   

  1. (1. 重庆大学 材料科学与工程学院， 重庆400044；2. 中冶赛迪工程技术股份有限公司， 重庆401122)
  • 收稿日期:2013-07-25 修回日期:2013-07-25 出版日期:2014-10-15 发布日期:2014-05-19
  • 通讯作者: 陈泽军
  • 作者简介:陈泽军(1979-)，男，黑龙江鹤岗人，重庆大学副教授，博士生导师.
  • 基金资助:
    中央高校基本科研业务费专项资金资助项目(CDJZR14135504).

Simulation on Effect of Electric Induction Reheating on Microstructure of Hot Rolled Low Alloy Steel

CHEN Zejun1， LI Hongtu2， ZHANG Jing1， HUANG Guangjie1   

  1. 1. College of Materials Science and Engineering， Chongqing University， Chongqing 400044， China； 2.CISDI Engineering Co.， Ltd.， Chongqing 401122， China.
  • Received:2013-07-25 Revised:2013-07-25 Online:2014-10-15 Published:2014-05-19
  • Contact: CHEN Zejun
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摘要： 利用热模拟试验机Gleeble1500D研究了低合金钢变形后，冷却至一定温度进行电感应再加热后微观组织的变化情况.在不同冷却温度，以及淬火和正火两种热处理方式下，研究了再加热过程对微观组织的影响.结果表明:变形后再加热过程对淬火试样组织影响较大；冷却温度处于两相区时，电感应再加热过程能改善温度分布均匀性，影响铁素体相变过程和碳氮化物的析出行为，促进晶粒长大，能够有效地控制和改善淬火热处理钢材的微观组织和性能.

关键词: 感应加热, 微观组织, 热模拟, 热轧, 热处理

Abstract: The thermal simulator Gleeble 1500D was used to investigate the microstructure evolution of hot rolled low alloy steel during cooling and reheating. The effect of reheating process on microstructure was studied in the conditions of different cooling temperature， quenching and normalizing heat treatments， respectively. The results showed that the effect of the reheating process after rolling on the quenched steel sample is more remarkable than on normalized sample. When the deformed steel is cooled to twophase region， the reheating process improves the uniformity of temperature distribution， affects the phase transformation of ferrite and precipitation of carbonitrides， prompts the growth of grains， and effectively improves and controls the microstructure and mechanical properties of the quenched steels.

Key words: induction heating, microstructure, thermal simulation, hot rolling, heat treatment

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