In a tensile test on a steel specimen, true strain = 0.12 at a stress of 250MPa. When true stress= 350MPa, true = 0.26. Determine the strength coefficient and the strain hardening exponents in the flow curve equation.

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In a tensile test on a steel specimen, true strain = 0.12 at a stress of 250MPa. When true stress= 350MPa, true = 0.26. Determine the strength coefficient and the strain hardening exponents in the flow curve equation.

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