that there occur work softening in the Al(99.996%)-2%Fe alloy when the rolling ratio is over 60% and in the Al(99.96%)-2%Fe alloy when the rolling ration is over 90%, but not in the Al(99.6%)-2%Fe alloy.

• 用99.；996%25Al配制的Al?2%25Fe合金当轧制率为60%25以上时出现加工软化； 用99