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

Journal article
(Original article)


Publication Details

Author(s): Peng Z, Povstugar I, Matuszewski K, Rettig R, Singer R, Kostka A, Choi PP, Raabe D
Journal: Scripta Materialia
Publisher: Elsevier Ltd
Publication year: 2015
Volume: 101
Pages range: 44-47
ISSN: 1359-6462
Language: English


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.



FAU Authors / FAU Editors

Matuszewski, Kamil
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Rettig, Ralf Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Singer, Robert Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


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://dx.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.

BibTeX: 

Last updated on 2018-19-04 at 03:52