Abstract
Low cycle fatigue and creep tests were performed on superalloy single crystals CMSX-4 to determine the effect of orientation and temperature on the stress-strain response and on the lifetime. The resistance against fatigue at 700 °C decreases in the order of <001>, <011>, <111> orientations. For creep the ranking depends both on the temperature and on the applied stress. These results are correlated with the microstructural changes taking place during loading.

Key words
fatigue, creep, superalloy single crystals CMSX-4

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