Abstract
The criteria that determine the operating ability of nickel superalloys are described. The binary Ni–W, W–Re, and Re–Ni phase diagrams are analyzed to find concentration characteristics and the probability of formation of β, α, and other undesirable phases based on refractory elements from a γ solid solution. The NewPhacomp method is corrected for single-crystal nickel superalloys. Additional criteria are introduced to estimate the probability of decomposition of the hardening γ’ phase and the precipitation of embrittling lamellar η and δ compounds from this phase.
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Original Russian Text © A.V. Logunov, Yu.N. Shmotin, D.V. Danilov, 2014, published in Tekhnologiya Metallov, 2014, No. 6, pp. 3–10.
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Logunov, A.V., Shmotin, Y.N. & Danilov, D.V. Methodological fundamentals of computer-assisted designing of nickel-based superalloys. Russ. Metall. 2015, 1046–1052 (2015). https://doi.org/10.1134/S0036029515130133
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DOI: https://doi.org/10.1134/S0036029515130133