Effects of Ru on elemental partitioning and precipitation of topologically close-packed phases in Ni-based superalloys

Peng Z, Povstugar I, Matuszewski K, Rettig R, Singer R, Kostka A, Choi PP, Raabe D (2015)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Publisher: Elsevier Ltd

Book Volume: 101

Pages Range: 44-47

DOI: 10.1016/j.scriptamat.2015.01.014

Abstract

Two Ni-based superalloys (one Ru-free and one containing 1 at.% Ru) were comparatively studied by Atom Probe Tomography and complimentary techniques. Ru addition impedes precipitation of the σ phase at 950 °C. Ru partitions nearly equally to the γ and σ phase. Neither reverse elemental partitioning nor destabilization of the γ' phase is detected when adding Ru. We propose an increase in the γ/σ lattice misfit caused by Ru as a major reason for impeded nucleation of the σ phase.

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APA:

Peng, Z., Povstugar, I., Matuszewski, K., Rettig, R., Singer, R., Kostka, A.,... Raabe, D. (2015). Effects of Ru on elemental partitioning and precipitation of topologically close-packed phases in Ni-based superalloys. Scripta Materialia, 101, 44-47. https://doi.org/10.1016/j.scriptamat.2015.01.014

MLA:

Peng, Zirong, et al. "Effects of Ru on elemental partitioning and precipitation of topologically close-packed phases in Ni-based superalloys." Scripta Materialia 101 (2015): 44-47.

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