Abstract
By use of slow strain rate test, the influence of strain rate, polarization, oxygen, acidity etc. on stress corrosion cracking (SCC) susceptibility of LC9 aluminum alloy was studied. LC9CS has the highest SCC susceptibility to NaCl solution when strain rate is about 1.55E-6/s. It should been avoided to give LC9CS cathodic protection, and the alloy should not be contacted with noble metal. The lower the pH value of corrosive agent, the lower the resistance to SCC. Oxygen can increase the SCC resistance of LC9CS. LC9CS has higher resistance to SCC than LC9CgS. Break stress and break energy can serve for the important parameters to reflect SCC resistance of LC9CS.
| Original language | English |
|---|---|
| Pages (from-to) | 190-201 |
| Number of pages | 12 |
| Journal | Corrosion and Protection |
| Volume | 23 |
| Issue number | 5 |
| State | Published - 2002 |
| Externally published | Yes |
Keywords
- Aluminum alloy LC9
- SCC
- Slow strain rate test
- Strain rate