Residual stress measurements in friction stir welded aluminum alloys
- James M. ,
- Mahoney M.W. and
- Waldron D.
- James M. ,
- Mahoney M.W. and
- Waldron D.
June 1999
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The surface and near-surface residual stress distributions of friction stir welds in three different aluminium alloys were measured using an x-ray diffraction technique. Welds in very low alkali and hydrogen content Al-Li alloy C458 (Al, 1.73%Li, 2.6%Cu, 0.06%Zn, 0.3%Mn, 0.09%Zr) and in 7050-T7451 and 2219 alloys were studied. Residual stresses were calculated from crystal lattice strain measurements, which were obtained by x-ray diffraction, using beam diameters of 1-3 mm.
1st International Symposium, 14-16 Jun 1999, Session 06: Applications 2, Paper 02
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