Relationship between electrical conductivity and stress corrosion cracking susceptibility of Al 7075 and Al 7475 alloys
- National Taiwan Univ., Taipei (Taiwan, Province of China). Inst. of Materials Science and Engineering
A relationship between electrical conductivity and stress corrosion cracking (SCC) resistance of the 7,000-series Al-Zn-Mg alloys has been established, although only from the near-peak strength T6 temper to the overaged T73 tempered condition. The present work investigated whether this relationship exists for all periods of aging and for Al alloys with different compositions and grain structures. The materials studied were commercial 2-mm thick Al 7075 (Al-5.76% Zn-2.46% Mg-1.70% Cu-0.20% Cr-0.12% Fe-0.09% Si-0.06% Mn-0.04% Ti) and Al 7475 (Al-5.80% Zn-2.24% Mg-1.53% Cu-0.19% Cr-0.08% Fe-0.02% Si-0.01% Mn-0.02% Ti) alloy plates.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 244977
- Journal Information:
- Corrosion, Journal Name: Corrosion Journal Issue: 6 Vol. 52; ISSN 0010-9312; ISSN CORRAK
- Country of Publication:
- United States
- Language:
- English
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