The influence of stress ratio on cyclic creep in Al-6Mg alloy

摘要

The experimental method of combined loading influence on creep of cylindrical and single edge notch cracked specimens of Al-6%Mg alloy was developed and data obtained were studied. It is finding that in some cases low amplitude cyclic loading, which was added to static loading, towards to significant increasing of deformation under the same level of maximum stress both in smooth and cracked specimens because of intensification of creep processes in aluminium alloy. The approach of stress level influence on dynamic creep of Al-6%Mg alloy prediction is proposed.