New Technique to Map Hot Corrosion Damage: CMSX-4 Example

Abstract Despite their extraordinary properties, superalloys are subject to hot corrosion; a phenomenon potentially leading to catastrophic failure of turbine blades. However hot corrosion is understood to be highly temperature dependent, undergoing different reaction rates and even reaction mechanisms with changing alloy temperature. As such, a detailed understanding of the variation in rates of damage with temperature is required when producing superalloy components for use in sectors such as aerospace and energy. This article outlines a novel method for rapidly acquiring temperature-dependent hot corrosion data for superalloys in the temperature range 600–1000 °C. The technique is illustrated for the aerospace superalloy, CMSX-4, generating results that localise peak hot corrosion damage at 725 °C (Type II) and 900 °C (Type I)..

Medienart:

Artikel

Erscheinungsjahr:

2015

Erschienen:

2015

Enthalten in:

Zur Gesamtaufnahme - volume:84

Enthalten in:

Oxidation of metals - 84(2015), 5-6 vom: 05. Okt., Seite 607-619

Sprache:

Englisch

Beteiligte Personen:

Haight, H. [VerfasserIn]
Potter, A. [VerfasserIn]
Sumner, J. [VerfasserIn]
Gray, S. [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

Themen:

Hot corrosion
Metal loss
Oxidation
Sulphidation
Superalloys

Anmerkungen:

© Springer Science+Business Media New York 2015

doi:

10.1007/s11085-015-9590-z

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2042027413