Review of Damage Models for Environmentally Assisted Cracking on Metals

Abstract

Stress corrosion cracking (SCC) is a form of failure in metals that is present mostly in systems where humidity contact and mechanical load play a key role. Therefore, prediction of the combined effect is desired. There are models based on path dissolution and film rupture, Hydrogen-embrittlement, based on empirical observations, and the unified approach which recognizes not the maximum applied stress intensity factor (SIF) but the SIF range as the fatigue driving force. So, in the later one, the contribution of corrosion to crack growth is recognized by adding a corrosion SIF.