Abstract
The present research was intended to study the effect of surface roughness and test temperature on localized corrosion at welds in structural and stainless steel under marine conditions. It was observed that surfaces in the 'as received' condition have more resistance to corrosion than the 'machined' ones due to oxidation of the surfaces in the 'as received' condition. Irrespective of surface roughness and test temperature, specimens in all materials suffered pitting and perforation. Pits were distributed and associated preferentially with the HAZ. The damage increased in severity in the order: stainless steel/stainless steel (welding process: Stainarc MA); mild steel/stainless steel (welding process: Incoweld-A), mild steel/stainless steel (welding process: RS 316), mild steel/mild steel (welding process: Unitrode) and finally, mild steel/mild steel (welding process: Mildtrode). Stainless steel gave very good results in synthetic seawater, but in natural seawater, pitting corrosion occurred due to microorganisms found in seawater.
| Original language | English |
|---|---|
| Pages | 647-657 |
| Number of pages | 11 |
| State | Published - 1990 |
ASJC Scopus subject areas
- General Engineering