3ASM Metal Handbook, properties and selection:nonferrous alloys and special-purpose materials, ASM International [ M ]. Ohio, 1993:2.
4Robinson J S, et al. Residual stress in 7449 aluminium alloy forgings [ J]. Materials Science and Engineering A, 2010 (527) :2603-2612.
5Marschall C W,Maringer R. Dimensional Instability an Introduction [ C ]//Pergamon, 1997:41-47.
6Lefebvre F,et al. Micromechanical aspects of fatigue in a MIG welded aluminum airframe alloy[ J]. Materials Science and Engineering A, 2005 ( 397 ) :338-345.
