Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1627634 | Journal of Alloys and Compounds | 2006 | 13 Pages |
Abstract
Platinum-based alloys are being developed which have microstructures that are analogous to the γ/γⲠmicrostructure of the nickel-based superalloys. These Pt-based superalloys have the potential to substitute Ni-based superalloys for even higher temperature applications. The Pt-Cr-Ru system has been studied experimentally as part of this project. The alloys were studied in the as-cast condition, using scanning electron microscope (SEM) and X-ray diffraction (XRD). A solidification projection and liquidus surface were constructed. The major phases were (Ru), (Pt) and â¼CrPt, with â¼Cr2Ru (D8b), â¼Cr3Ru (A15) and â¼Cr3Pt (A15) being minor in extent. Both the tetragonal (L10) and cubic (A1) forms of â¼CrPt were observed. Two invariant reactions were identified in the Pt-Cr-Ru system.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
R. Süss, L.A. Cornish, M.J. Witcomb,