The Creep Behaviour of a Nickel Base Single Crystal Superalloy

Chen Dehou; Wei Shuyue; Wu Zhongtang; Han Yafang

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Journal of Aeronautical Materials ›› 1986, Vol. 6 ›› Issue (1) : 7-12.

The Creep Behaviour of a Nickel Base Single Crystal Superalloy

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Abstract

The creep behaviour of a nickel base single crystal alloy DD3 has been studied in the temperature and stress ranges of 1013 to 1293 K and 176 to 784 MPa, respectively. The Experimental results showed that the creep resistance of DD3 alloy at high temperature up to 1273 K appeared very high compared to current nickel base superalloys and unidirectionall y solidified superalloys, which is attributed to the proper composition and microstructures of present alloy. The results also showed that the creep resistance of DD3 alloy was affected by solution temperature and crystal orientation significantly.

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Chen Dehou, Wei Shuyue, Wu Zhongtang, Han Yafang. The Creep Behaviour of a Nickel Base Single Crystal Superalloy[J]. Journal of Aeronautical Materials, 1986, 6(1): 7-12

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