Effect of very high temperature short exposures on the dissolution of the γ′ phase in single crystal MC2 superalloy

作者: Jonathan Cormier , Xavier Milhet , Jose Mendez

DOI: 10.1007/S10853-007-1645-3

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摘要: Time-temperature dependence of the γ′ phase volume fraction was investigated for a second generation single crystal nickel-based superalloy exposed to very short high temperature regimes (1,100–1,200 °C). In this range, dissolution strengthening occurs. Evolution in transient has been established each and activation energy phenomenon were determined. They directly attest from activity diffusing species involved during phenomenon. From these analyses, at equilibrium entire range where A model, based on time/temperature equivalence, is proposed quantify dissolved exposure.

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