Dynamic Recrystallization and Grain Growth Behavior of 20SiMn Low Carbon Alloy Steel |
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Authors: | DONG Lanfeng ZHONG Yuexian MA Qingxian YUAN Chaolong MA Lishen |
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Institution: | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China |
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Abstract: | A senes 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 expenment 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. |
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Keywords: | 20SiMn flow stress dynamic recrystallization grain growth secondary phase |
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