Low-Temperature Hot Corrosion in Gas Turbines: A Review of Causes and Coatings Therefor

Autor:	G. W. Goward
Rok vydání:	1986
Předmět:	Gas turbines Fuel Technology Materials science Nuclear Energy and Engineering Turbine blade law Mechanical Engineering Metallurgy Energy Engineering and Power Technology Aerospace Engineering Corrosion law.invention
Zdroj:	Journal of Engineering for Gas Turbines and Power. 108:421-425
ISSN:	1528-8919 0742-4795
Popis:	In about 1975 an apparently new form of hot corrosion attack of gas turbine airfoils was identified during low-power, low-metal-temperature operation of a marine gas turbine. The rate of this corrosion was substantially greater at about 700° C than that usually observed for sulfate-induced hot corrosion at 800° to 1000° C. The same type of hot corrosion has been subsequently reported to occur in ground-based gas turbines, and is similar in principle to fireside corrosion of boiler tubes. This paper presents a review of probable mechanisms of this so-called low-temperature hot corrosion, of test methods for its laboratory and rig simulation, and of coatings in use or in advanced development for protection of gas turbine airfoils operating in this corrosion regime.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ef74d44b70edc3967e548e32a2823a6c https://doi.org/10.1115/1.3239921 Zobrazit plný text záznamu