In order to determine the optimum condition of deep drawing for the AMS 5604
stainless steel sheet (chemical composition: Cr 16.5, Ni 4.0, Cu 4.0, Mn 1.0, Mo 0.5,
Si 1.0, Nb 0.3, C 0.07 wt. pct.), the effect of forming temperature on the basic mechanical
properties (such as yield stress, ultimate strength, total and uniform elongation,
strain hardening parameters and plastic anisotropy factor) of the material was
experimentally investigated. Uniaxial tensile test was performed to determine mechanical
parameters of the 1.0 mm thick stainless steel at different temperature: 20 °C (room
temperature, cold forming conditions), 400 °C, 500 °C, 600 °C, 650 °C and 700 °C. The
tensile specimens of 50 mm gauge length and 12.5 mm width were prepared from
strips cut at 0°, 45° and 90° according to the rolling direction of the sheet. The tests
performed at evaluated temperature were carried out in the protective argon gas atmosphere.
The experiments were carried out using a special device which recorded
simultaneously the tensile load and the current length of specimen. The strain-stress
relation was described employing Hollomon equation in the form of: σ = Cε n
, where n
is strain hardening exponent and C is strain hardening coefficient.
Some of the specimens were deformed (up to uniform elongation) in order to determinate
plastic anisotropy coefficient defined as
In order to determine the optimum condition of deep drawing for the AMS 5604stainless steel sheet (chemical composition: Cr 16.5, Ni 4.0, Cu 4.0, Mn 1.0, Mo 0.5,Si 1.0, Nb 0.3, C 0.07 wt. pct.), the effect of forming temperature on the basic mechanicalproperties (such as yield stress, ultimate strength, total and uniform elongation,strain hardening parameters and plastic anisotropy factor) of the material wasexperimentally investigated. Uniaxial tensile test was performed to determine mechanicalparameters of the 1.0 mm thick stainless steel at different temperature: 20 °C (roomtemperature, cold forming conditions), 400 °C, 500 °C, 600 °C, 650 °C and 700 °C. Thetensile specimens of 50 mm gauge length and 12.5 mm width were prepared fromstrips cut at 0°, 45° and 90° according to the rolling direction of the sheet. The testsperformed at evaluated temperature were carried out in the protective argon gas atmosphere.The experiments were carried out using a special device which recordedsimultaneously the tensile load and the current length of specimen. The strain-stressrelation was described employing Hollomon equation in the form of: σ = Cε n, where nis strain hardening exponent and C is strain hardening coefficient.Some of the specimens were deformed (up to uniform elongation) in order to determinateplastic anisotropy coefficient defined as
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