The composite internal friction peak(versus temperature)assumed to be consisted of a relaxation peak and a phase transformation peak previously observed in cold-worked Al-0.50wt%(0.21at%)Cu at temperatures below room ...The composite internal friction peak(versus temperature)assumed to be consisted of a relaxation peak and a phase transformation peak previously observed in cold-worked Al-0.50wt%(0.21at%)Cu at temperatures below room temperature are now resolved into two separate peaks.Internal friotion peaks as a function of strain amplitude(the amplitude peak)are observed around the temperature region of both peaks for he first time.展开更多
文摘The composite internal friction peak(versus temperature)assumed to be consisted of a relaxation peak and a phase transformation peak previously observed in cold-worked Al-0.50wt%(0.21at%)Cu at temperatures below room temperature are now resolved into two separate peaks.Internal friotion peaks as a function of strain amplitude(the amplitude peak)are observed around the temperature region of both peaks for he first time.