An assessment of ternary precipitation-strengthened Pt alloys for ultra-high temperature applications

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 301; no. 2; pp. 167 - 179
• Main Authors: Hill, P.J, Biggs, T, Ellis, P, Hohls, J, Taylor, S, Wolff, I.M
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 31.03.2001; Elsevier
• Subjects: Applied sciences; Exact sciences and technology; Hardness; High-temperature; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metals. Metallurgy; Microstructure; Other mechanical properties; Oxidation; Platinum alloys; Superalloys; Oxidation; High-temperature; Superalloys; Hardness; Microstructure; Platinum alloys; Heat treatment; Phase composition; High temperature; Experimental study; Precipitation hardening; Microhardness; Platinum base alloys; Optical microscopy; Dual phase structure; Oxidation stability; Transition metal alloy; Application

Platinum alloys with analogous microstructures to the Ni-base superalloys, but with higher melting temperatures, were investigated. In a preliminary investigation, ternary Pt–X–Z compositions were selected to yield two-phase microstructures consisting of (Pt) and Pt 3X, where (Pt) has an fcc structu...