Hot section gas turbine components are made of superalloys, developed to withstand high temperatures in conditions in which mechanical stresses are high and that require high surface stability. However, during the SOs it became evident that compositions resulting in high mechanical strength for these materials were not compatible with those offering optimal protection from the working environments. The idea of employing protective coatings over materials with high mechanical strength resulted therefore from this situation. Presently, both aeronautic and power generation turbines operate at temperatures within the 900-1400 degree C, thanks to these coatings, indispensable for their correct operation. In this work, the principal degradation mechanisms in these operating conditions and the different type of coatings presently employed by the industrial sector are described, beginning by the oldest Ni or Co aluminides, following with the addition of other metals such as Pt, Cr, etc. to die former coatings in order to increase their useful life, continuing with the overlay MCrAlY coatings and finishing with the thermal barrier coating systems. Moreover, the corresponding deposition techniques industrially employed to deposit these coatings are described, and finally, an insight of the latest research lines currently being developed is also included.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Recubrimientos contra la corrosion a alta temperatura para componentes de turbinas de gas


    Additional title:

    High temperature corrosion resistant coatings for gas turbine components


    Contributors:
    Aguero, A. (author)

    Published in:

    Revista de Metalurgia ; 43 , 5 ; 384-398


    Publication date :

    2007


    Size :

    15 Seiten, 54 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Unknown




    Sistema de aviso de alta temperatura para eje de dirección

    HENNIG MARK KEVIN | European Patent Office | 2016

    Free access

    Componentes termoplásticos antideslizantes de alta retrorreflectividad preformados para aplicaciones de pista

    GREER ROBERT / YAKOPSON SIMON / BINDER CATHERINE | European Patent Office | 2017

    Free access

    Acoplamiento para inducir descensos de alta temperatura entre partes conectadas en una aeronave

    PREMAZZI MARCO / GARUCIO FEDERICO | European Patent Office | 2015

    Free access