Thermodynamic Study on Equilibrium Phases in Nickel-Base Single Crystal Superalloys

Abstract:

In order to improve the composition and microstructure of nickel-base single crystal superalloys, equilibrium phases of third generation single crystal superalloys RenéN6 and CMSX-10 have been researched by using thermodynamic calculation software JMatPro. The calculated results indicated that the two superalloys have the same equilibrium phases, such as liquid phase, γ phase, γ’ phase and TCP (topologically close-packed phases), however, there are differences in the quantity and temperature range. RenéN6 alloy has higher content of μ phase. And CMSX-10 alloy has higher γ’ phase precipitation temperature and more γ’ phase precipitates.

• Periodical: Materials Science Forum (Volume 944)
• Pages: 149-154
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.944.149
• Online since: January 2019
• Authors: Jin San Wang*
• Keywords: Equibrium Phase, Single Crystal Superalloy, Thermodynamic Calculation, Turbine Blade

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