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Abstract：
In this paper, using the in-situ nano-indentation device (SPM/SEM hybrid system) to test the micro-mechanical properties of gamma＇ phase and eutectic gamma＇ phase which along ＜001＞ direction of directionally solidified nickel-base super-alloy. The hardness and modulus of the eutectic gamma＇ is higher than gamma＇ phase. For the specimen ST (without aging treatment), the elastic modulus and hardness of the gamma＇ phase respectively is 110.7GPa and 1.45GPa, the elastic modulus and hardness of the eutectic gamma＇ phase respectively is 171.2GPa and 3.98GPa; for the specimen W-1000(aging 1000hours), the elastic modulus and hardness of the gamma＇ phase respectively is 105.4GPa and 1.35GPa, the elastic modulus and hardness of the eutectic gamma＇ phase respectively is 161.5GPa and 3.85GPa. After long-term high-temperature aging without loading, the change of the micro-mechanical properties of gamma＇ phase and eutectic gamma＇ phase which along ＜001＞ direction of directionally solidified nickel-base super-alloy is not apparent. Meanwhile the results of the FEM are in good agreement with the results of the experiments.
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Source ：
MACHINERY, MATERIALS SCIENCE AND ENERGY ENGINEERING
Year： 2015
Page： 538-549
Language： English
Cited Count：
WoS CC Cited Count： 0
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ESI Highly Cited Papers on the List： 0 Unfold All
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Chinese Cited Count：
30 Days PV： 6
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