Dynamic Recrystallization and Grain Growth Behavior of 20SiMn Low Carbon Alloy Steel

• 作 者: 董岚枫 钟约先 马庆贤 袁朝龙 马力深
• 机 构: Department of Mechanical Engineering,Tsinghua University,
• 出 处: Tsinghua Science and Technology
• 发表日期: 2008年05期
• 关键词: Grain forging thermodynamics refined grains softening austenite doing optimize h

A series of thermodynamics experiments were used to optimize the hot forging process of 20SiMn low-carbon alloy steel. A dynamic recrystallization and grain growth model was developed for the 20SiMn steel for common production conditions of heavy forgings by doing a nonlinear curve fit of the experiment data. Optimized forging parameters were developed based on the control of the dynamic recrystallization and the MnS secondary phase. The data shows that the initial grain size and the MnS secondary phase all affect the behavior of the 20SiMn dynamic recrystallization and grain growth.

A series of thermodynamics experiments were used to optimize the hot forging process of 20SiMn low-carbon alloy steel. A dynamic recrystallization and grain growth model was developed for the 20SiMn steel for common production conditions of heavy forgings by doing a nonlinear curve fit of the experiment data. Optimized forging parameters were developed based on the control of the dynamic recrystallization and the MnS secondary phase. The data shows that the initial grain size and the MnS secondary phase all affect the behavior of the 20SiMn dynamic recrystallization and grain growth.