CREEP-FATIGUE BEHAVIOUR OF A Ni-BASE SINGLE CRYSTAL ALLOY DD3 AND ITS LIFE PREDICTION
DD3单晶镍基合金蠕变—疲劳及寿命预测

Creep-fatigue behaviour of a Ni-base single crystal alloy DD3 under condi- tion of tension-tension stress was investigated from some concept about strain range parti- tioning (SRP) and strain energy partitioning (SEP). Study of effect of hold time and its quan- titative computation was also made. Using numerical method of SEP (SEP-NCM), creep-fa- tigue life prediction under condition of tension-tension strees was performed.