Abstract
This paper offers a numerical modeling of hydrogen embrittlement and notch tensile strength of high-strength pearlitic steel (supplied in the form of hot rolled bars) in the presence of blunt notches, by using the finite element method in order to determine how the notch depth influences the concentration of hydrogen in the steady-state regime for different loading values. Numerical results show that the maximum hydrostatic stress location (towards which hydrogen is directed by a mechanism of stress-assisted diffusion) shifts from the notch tip to the inner points of the specimen under increasing load, even reaching the sample axis for the most elevated levels of externally applied stress.
Published Version
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