Stress corrosion susceptibility in 7050 T7541 aluminum following friction stir welding
- Lumsden J. ,
- Mahoney M.W. ,
- Pollock G. ,
- et al
- Lumsden J. ,
- Mahoney M.W. ,
- Pollock G. ,
- Waldron D. and
- Guinasso A.
June 1999
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Stress corrosion cracking in friction stir welded aluminium alloy joints was investigated using two alternative techniques. Aluminium alloy 7050-T7541 (Al, 5.7-6.7%Zn, 2.0-2.6%Cu, 1.9-2.6%Mg, 0.15%Fe, 0.12%Si) plate of 6.35 mm (0.25 in) thickness was friction stir welded and the welded joints subjected to stress corrosion cracking using the slow strain rate and the alternate immersion test techniques (3.5% NaCl solution). Samples were also tested after ageing for periods of 2 weeks, 5 months, or one week at 100 deg.C.
1st International Symposium, 14-16 Jun 1999, Session 05: Microstructure & Corrosion 1, Paper 02
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