Construction and application of quenching critical cooling rate model

  • Tian-liang FuEmail author
  • Ri-qing Wang
  • Zhao-dong Wang
  • Guo-dong Wang
  • Ming-tao Wang


Based on exploring quenching mechanism, three types of quenching critical cooling rate models of medium-carbon steel and low-carbon steel and low-alloy construction steel were established, as modified Maynier model, Eldis model and isothermal curve model, respectively. During construction process, regression analysis and Newton interpolation method were used for higher calculated precision. Through comparing and analyzing, the superior one was selected to evaluate the full hardening thickness after quenching. According to hardness analyzing, the deviation between predicted hardness distribution and the experimental value is within 6%.

Key words

medium-carbon steel and low-carbon steel low-alloy construction steel critical cooling rate hardenability 


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Copyright information

© China Iron and Steel Research Institute Group 2010

Authors and Affiliations

  • Tian-liang Fu
    • 1
    Email author
  • Ri-qing Wang
    • 2
  • Zhao-dong Wang
    • 1
  • Guo-dong Wang
    • 1
  • Ming-tao Wang
    • 3
  1. 1.The State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang, LiaoningChina
  2. 2.Productive SectorNorthern Heavy Industries Group Co LtdShenyang, LiaoningChina
  3. 3.Heat Treatment Workshop, Linfen Medium Plate PlantTaiyuan Iron and Steel GroupLinfen, ShanxiChina

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