Cylindrical specimen of a metal alloy 46.0 mm long and 9.72 mm in diameter is stressed in tension. A true stress of 386 MPa causes the specimen to plastically elongate to a length of 52.9 mm. If it is known that the strain-hardening exponent for this alloy is 0.2, calculate the true stress (in MPa) necessary to plastically elongate a specimen of this same material from a length of 46.0 mm to a length of 55.6 mm.
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Physics, 21.06.2019 17:00, brookemcelhaney
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Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
Cylindrical specimen of a metal alloy 46.0 mm long and 9.72 mm in diameter is stressed in tension. A...
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