Creep investigation of commercial and improved nickel-based wrought superalloys

G.I. Rosen; S.F. Dirnfeld; M. Bamberger; A. Rosen; B. Prinz

doi:10.1016/0921-5093(93)90421-A

Creep investigation of commercial and improved nickel-based wrought superalloys

G.I. Rosen, S.F. Dirnfeld, M. Bamberger, A. Rosen, B. Prinz

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The following article is part of an investigation on the effect of Ta addition to Ni-based superalloys. This part deals with the creep properties. Two commercial alloys (Nimonic 80A and Waspaloy) and two experimental alloys containing Ta have been studied. It was found that Ta significantly improves the creep resistance only if the ageing treatment is carried out to develop fully the size and volume fraction of the γ′ precipitates. Ta addition also affects the values of Q and n, i.e. the activation energy for creep and the stress exponent.

Original language	English
Journal	Materials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing
Volume	172
Issue number	1-2
Pages (from-to)	15-21
ISSN	0921-5093
DOIs	https://doi.org/10.1016/0921-5093(93)90421-A
Publication status	Published - 1993

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abstract = "The following article is part of an investigation on the effect of Ta addition to Ni-based superalloys. This part deals with the creep properties. Two commercial alloys (Nimonic 80A and Waspaloy) and two experimental alloys containing Ta have been studied. It was found that Ta significantly improves the creep resistance only if the ageing treatment is carried out to develop fully the size and volume fraction of the γ′ precipitates. Ta addition also affects the values of Q and n, i.e. the activation energy for creep and the stress exponent.",

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AU - Prinz, B.

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AB - The following article is part of an investigation on the effect of Ta addition to Ni-based superalloys. This part deals with the creep properties. Two commercial alloys (Nimonic 80A and Waspaloy) and two experimental alloys containing Ta have been studied. It was found that Ta significantly improves the creep resistance only if the ageing treatment is carried out to develop fully the size and volume fraction of the γ′ precipitates. Ta addition also affects the values of Q and n, i.e. the activation energy for creep and the stress exponent.

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Creep investigation of commercial and improved nickel-based wrought superalloys

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