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

Scripta Materialia Elsevier

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.

Authors with CRIS profile

Kamil Matuszewski Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM) Ralf Rettig Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM) Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM)

Related research project(s)

Activity Development of high temperature alloys Jan. 1, 1990 - Jan. 1, 1993

Involved external institutions

Max-Planck-Institut für Eisenforschung GmbH (MPIE) / Max Planck Institute for Iron Research DE Germany (DE)

How to cite

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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