The Effects of Anisotropic Yield Functions on Plastic Behavior of 304 Stainless Steel

2018 ◽  
Vol 46 (6) ◽  
pp. 20170112 ◽  
Author(s):  
Bora Sener ◽  
Mehmet Emin Yurci
Keyword(s):  
Stainless Steel ◽  
304 Stainless Steel ◽  
Plastic Behavior ◽  
Yield Functions

Effect of Temperature Variation on Cyclic Elastic-Plastic Behavior of SUS 304 Stainless Steel

1990 ◽  
Vol 112 (2) ◽  
pp. 152-157 ◽  
Author(s):  
Y. Niitsu ◽  
K. Ikegami
Keyword(s):  
Stainless Steel ◽  
Temperature Variation ◽  
Cyclic Hardening ◽  
Experimental Results ◽  
304 Stainless Steel ◽  
Effect Of Temperature ◽  
Plastic Behavior ◽  
Elastic Plastic ◽  
Temperature Conditions ◽  
Hardening Models

The cyclic elastic-plastic behavior of SUS 304 stainless steel was investigated experimentally under various temperatures and temperature-changing conditions. The specimens were cyclically loaded between fixed axial strain limits at constant temperatures in the range from room temperature to 600°C. The effects of the cyclic strain amplitude on the saturation property of cyclic hardening were obtained at various temperatures. The effects of temperature variations on the cyclic hardening were examined under the temperature conditions of changing between two different temperatures. From these experimental results, the effects of the temperature variation on the saturation properties were found under several temperature conditions. The three different hardening models accounting for these cyclic hardening properties were proposed. The experimental results were compared with the results calculated by those three cyclic hardening models.

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.

Thermo-Mechanical Cyclic Plastic Behavior of 304 Stainless Steel at Large Temperature Ranges

2016 ◽  
Vol 725 ◽  
pp. 275-280
Author(s):  
Nobutada Ohno ◽  
Ryohei Yamamoto ◽  
Dai Okumura
Keyword(s):  
Stainless Steel ◽  
Cyclic Loading ◽  
Cyclic Hardening ◽  
Cyclic Behavior ◽  
304 Stainless Steel ◽  
Maximum Temperature ◽  
Plastic Behavior ◽  
Temperature Ranges ◽  
Hardening Parameter ◽  
Maximum Temperatures

Thermo-mechanical cyclic experiments on 304 stainless steel were performed at several temperature ranges which had maximum temperatures ranging from 350°C to 1000°C and a minimum temperature of 150 °C. Related isothermal cyclic experiments were also performed. Temperature-history dependent cyclic hardening significantly occurred under thermo-mechanical cyclic loading with maximum temperatures around 600°C, whereas almost no cyclic hardening was observed when the maximum temperature was 1000°C. The observed thermo-mechanical cyclic plastic behavior in the saturated state of cyclic hardening was then simulated using a cyclic viscoplastic constitutive model, leading to the following findings. It was difficult to predict the saturated thermo-mechanical cyclic behavior using only the isothermal cyclic experimental data. The saturated thermo-mechanical cyclic behavior was simulated well by introducing a cyclic hardening parameter depending on the maximum temperature. This means that the cyclic hardening parameter should not change with temperature but depend on the maximum temperature in the saturated state of cyclic hardening under thermo-mechanical cyclic loading.

Comparison of Recovery and Recrystallization in Stainless Steel Following Plane-Wave Shock Loading and Explosive Forming

1970 ◽  
Vol 28 ◽  
pp. 428-429 ◽  
Author(s):  
J. A. Korbonski ◽  
L. E. Murr
Keyword(s):  
Stainless Steel ◽  
Shock Loading ◽  
Pressure Pulse ◽  
Shock Pressure ◽  
304 Stainless Steel ◽  
Strain Rates ◽  
Two Dimensional ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Explosive Forming

Comparison of recovery rates in materials deformed by a unidimensional and two dimensional strains at strain rates in excess of 104 sec.−1 was performed on AISI 304 Stainless Steel. A number of unidirectionally strained foil samples were deformed by shock waves at graduated pressure levels as described by Murr and Grace. The two dimensionally strained foil samples were obtained from radially expanded cylinders by a constant shock pressure pulse and graduated strain as described by Foitz, et al.

Pyrolytic carbon filaments and associated catalytic particles formed in steel tubes

1984 ◽  
Vol 42 ◽  
pp. 662-663
Author(s):  
Y. L. Chen ◽  
J. R. Bradley
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Catalyst Particle ◽  
Pyrolytic Carbon ◽  
Plain Carbon Steel ◽  
304 Stainless Steel ◽  
Hydrocarbon Gases ◽  
Steel Tubes ◽  
Filamentous Carbon ◽  
Carbon Filaments

Considerable effort has been directed toward an improved understanding of the production of the strong and stiff ∼ 1-20 μm diameter pyrolytic carbon fibers of the type reported by Koyama and, more recently, by Tibbetts. These macroscopic fibers are produced when pyrolytic carbon filaments (∼ 0.1 μm or less in diameter) are thickened by deposition of carbon during thermal decomposition of hydrocarbon gases. Each such precursor filament normally lengthens in association with an attached catalyst particle. The subject of filamentous carbon formation and much of the work on characterization of the catalyst particles have been reviewed thoroughly by Baker and Harris. However, identification of the catalyst particles remains a problem of continuing interest. The purpose of this work was to characterize the microstructure of the pyrolytic carbon filaments and the catalyst particles formed inside stainless steel and plain carbon steel tubes. For the present study, natural gas (∼; 97 % methane) was passed through type 304 stainless steel and SAE 1020 plain carbon steel tubes at 1240°K.

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