The Rate (Time)-Dependent Mechanical Behavior of Modified 9Cr-lMo Steel - II. Isothermal Modeling at 538°C Using Viscoplasticity Theory Based on Overstress

The viscoplasticity theory based on overstress (VBO) has been modified to produce effects of recovery of state. The ability to model recovery as well as rate dependence is demonstrated by the simulation of two experiments which were conducted on modified 9Cr-1Mo steel at 538°C. Experimental and numerical results compare reasonably well.

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OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
Published
2024-08-16
Primary Topic
Microstructure and Mechanical Properties of Steels
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article

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article

The Rate (Time)-Dependent Mechanical Behavior of Modified 9Cr-lMo Steel - II. Isothermal Modeling at 538°C Using Viscoplasticity Theory Based on Overstress

Patrick S. Majors, E. Krempl, M.B. Ruggles
OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
Microstructure and Mechanical Properties of Steels
article

The Rate (Time)-Dependent Mechanical Behavior of Modified 9Cr-lMo Steel - II. Isothermal Modeling at 538°C Using Viscoplasticity Theory Based on Overstress

Patrick S. Majors, E. Krempl, M.B. Ruggles
article en

Abstract

The viscoplasticity theory based on overstress (VBO) has been modified to produce effects of recovery of state. The ability to model recovery as well as rate dependence is demonstrated by the simulation of two experiments which were conducted on modified 9Cr-1Mo steel at 538°C. Experimental and numerical results compare reasonably well.

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
Oak Ridge National Laboratory (US), Rensselaer Polytechnic Institute (US)
U.S. Department of Energy
Microstructure and Mechanical Properties of Steels
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