Prediction of the Residual Durability of Structural Elements under the Dual Influence of Hydrogen

Keywords

hydrogen diffusion, hydrogen concentration, hydrogen-containing environment, local plastic deformation, mathematical model, crack propagation, residual durability

Abstract

On the basis of the previously developed calculation model of hydrogen-induced crack growth in metals under the action of long-term static loading under various HELP, HEDE mechanisms, kinetic diagrams of hydrogen cracking of steels were constructed 4340 and 4147 under different hydrogenation regimes. The residual durability of the plate with a crack under dual hydrogen exposure was calculated.

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