Abstract
The influence of Cu addition on the corrosion behaviour of hot pressed sintered stainless steel of Type 316 in H2SO4 solution was investigated. It was found that Cu additions of 0.25-5 wt% enhance the passivation processes of the hot pressed sintered stainless steel. The open-circuit potential of samples containing Cu was + 200 mV(SCE) as compared to -250 mV(SCE) in the other case. The potentiodynamic measurements indicate that as a result of the Cu addition the corrosion potential is increased, and the anodic critical current density and the cathodic overpotential for the hydrogen evolution are decreased. It is suggested that the low hydrogen cathodic overpotential caused by Cu addition, combined with the active-passive basic behaviour of the 316 stainless steel matrix, arc the main factors affecting the improved corrosion resistance.
| Original language | English |
|---|---|
| Pages (from-to) | 49-54 |
| Number of pages | 6 |
| Journal | Corrosion Science |
| Volume | 26 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 1986 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Materials Science
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