Influence of temperature history on strain-induced austenite transformation in 304 stainless steel

1987 ◽  
Vol 58 (5) ◽  
pp. 231-235 ◽  
Author(s):  
Mirosław Piwecki ◽  
Paweł Małecki
Keyword(s):  
Stainless Steel ◽  
304 Stainless Steel ◽  
Temperature History ◽  
Influence Of Temperature ◽  
Austenite Transformation

Variable Temperature Creep and Creep Recovery of 304 Stainless Steel

1984 ◽  
Vol 106 (4) ◽  
pp. 393-396 ◽  
Author(s):  
U. W. Cho ◽  
W. N. Findley
Keyword(s):  
Stainless Steel ◽  
Temperature Increase ◽  
Variable Temperature ◽  
Superposition Principle ◽  
304 Stainless Steel ◽  
Temperature History ◽  
Effect Of Temperature ◽  
Creep Recovery ◽  
Temperature Creep ◽  
Dependent Theory

Creep and creep recovery data are reported for pure tension of 304 stainless steel under variable temperature between 593°C and 649°C. Varying temperature experiments involved multiple steps of abrupt temperature increase and decrease at a constant stress of 86.2 MPa (12.5 ksi). A temperature-compensated time proposed by Sherby and Dorn was employed to represent the effect of temperature. The temperature history dependent theory combined with the modified superposition principle was used to predict the variable temperature creep and creep recovery from data under constant temperature. The test data were predicted reasonably well by the theory.

Constitutive Modeling of Anisothermal Cyclic Plasticity of 304 Stainless Steel

1989 ◽  
Vol 111 (1) ◽  
pp. 106-114 ◽  
Author(s):  
N. Ohno ◽  
Y. Takahashi ◽  
K. Kuwabara
Keyword(s):  
Stainless Steel ◽  
Constitutive Modeling ◽  
Phase Changes ◽  
Cyclic Plasticity ◽  
304 Stainless Steel ◽  
Temperature History ◽  
Isotropic Hardening ◽  
Plastic Behavior ◽  
Extended Model ◽  
Thermomechanical Cycling

Temperature-history dependence in anisothermal cyclic plasticity of 304 stainless steel is studied for the constitutive modeling within the temperature range from room temperature to 600°C. Cyclic plastic behavior under in-phase and out-of-phase changes of temperature and athermal strain is analyzed first by use of an elaborate constitutive model with its material constants determined from isothermal experiments; good agreement is obtained between the predictions and experiments, if we assume that the internal change proper to higher temperature prevails under such thermomechanical cycling. This finding leads us to extend the evolution equation of isotropic hardening so that it can be valid for more complex variations of temperature. The extended model simulates well the recent experiments of Niitsu and Ikegami under multi-step changes of temperature.

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