The role of pitting corrosion in reliability assessment for low alloy steels and carbon steel alloys

Abstract EN

Since reliability of an equipment or component is influenced through a product life cycle as a result of deficiencies occurring in design, production or due to external factors (end-environments).

The effect of pitting corrosion on reliability of different low alloy steels, and carbon steel alloys are estimated in this study so as to notice the failures that may result in the end environment.

Results show that the reliability decreases dramatically as pit density and average pit depth increases for all the studied alloys, in a way that the alloys turn to non-useful from reliability point of view.

Reliability is less affected by the corrosion rate of the relative alloy.

These results are related to the fact that the pit depth and density better describe pitting corrosion rather than the corrosion rate.