Flow Stress Modeling of Ferrous Alloys and Comparative Study of Dynamic Recrystallization Behaviors during Hot Rolling

2020 ◽  
Vol 44 (6) ◽  
pp. 421-428
Author(s):  
Sang Min Byon
Keyword(s):  
Flow Stress ◽  
Comparative Study ◽  
Dynamic Recrystallization ◽  
Hot Rolling ◽  
Ferrous Alloys ◽  
Stress Modeling

Turning Force Prediction of AISI 4130 Considering Dynamic Recrystallization

2017 ◽  
Author(s):  
Zhipeng Pan ◽  
Yixuan Feng ◽  
Xia Ji ◽  
Steven Y. Liang
Keyword(s):  
Grain Size ◽  
Flow Stress ◽  
Dynamic Recrystallization ◽  
Analytical Model ◽  
Cutting Forces ◽  
Material Flow ◽  
Explicit Calculation ◽  
Material Microstructure ◽  
Machining Forces ◽  
Aisi 4130

Thermal mechanical loadings in machining process would promote material microstructure changes. The material microstructure evolution, such as grain size evolution and phase transformation could significantly influence the material flow stress behavior, which will directly affect the machining forces. An analytical model is proposed to predict cutting forces during the turning of AISI 4130 steel. The material dynamic recrystallization is considered through Johnson-Mehl-Avrami-Kolmogorov (JMAK) model. The explicit calculation of average grain size is provided in an analytical model. The grain size effect on the material flow stress is considered by introducing the Hall-Petch relation into a modified Johnson-Cook model. The cutting forces prediction are based on Oxley’s contact mechanics with consideration of mechanical and thermal loads. The model is validated by comparing the predicted machining forces with experimental measurements.

A Study of Dynamic Recrystallization During Hot Rolling of Microalloyed Steels

CIRP Annals ◽  
1996 ◽  
Vol 45 (1) ◽  
pp. 227-230 ◽  
Author(s):  
Jajal Biglou ◽  
John G. Lenard
Keyword(s):  
Dynamic Recrystallization ◽  
Hot Rolling ◽  
Microalloyed Steels

scholarly journals Mathematical Model for Predicting Flow Stress in Hot Rolling of Alloy Steel

2017 ◽  
Vol 58 (12) ◽  
pp. 1640-1646
Author(s):  
Atsushi Matsumoto ◽  
Shunsuke Sasaki ◽  
Tatsuro Katsumura ◽  
Hiroki Ota
Keyword(s):  
Mathematical Model ◽  
Flow Stress ◽  
Alloy Steel ◽  
Hot Rolling
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