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Abstract

Quenching and residual stresses were evaluated in carburized (0·18% core carbon) steel cylinders. A variety of experimentally generated data including dilatation strains, temperature-dependent elastic-plastic properties, and thermal profiles from oil and water quenching were used as input data for a finite-element program. The program was designed specifically for cylinders and allowed determination of the stress history during quenching and the development of the residual-stress profiles. Special emphasis was given to evaluating the factors that lead to the final residual-stress patterns including the degree of plastic flow and the phase transformations for the carburized and high-carbon steels. To verify the results, residual stresses were evaluated by X-ray diffraction methods and compared with those determined by the finite-element program. The X-ray results corroborated those found with the finite-element program.

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Prediction of stress history in carburized and quenched steel cylinders

Abstract

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