Reaction-bonded Si3N4 turbine shrouds were examined after failure during engine testing. Test times ranged from 2 to 50 h and maximum turbine inlet temperatures were ungefaehr gleich 900 C. Failures were attributed to excessive mechanical stresses caused by rig problems and to thermal shock. Most of the fractures initiated at surfaces, apparently from machining damage. Strengths of bend specimens machined from engine-tested shrouds equaled that of material from untested billets. Estimates of component fracture stresses agreed with values from bend tests of specimens with as-received surfaces.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Analysis of fracture of reaction-bonded Si3N4 turbine shrouds


    Weitere Titelangaben:

    Analyse des Bruchs von Turbinengehaeusen aus reaktionsgesintertem Siliciumnitrid


    Beteiligte:
    Messier, D.R. (Autor:in) / Schioler, L.J. (Autor:in) / Quinn, G.D. (Autor:in) / Napier, J.C. (Autor:in)


    Erscheinungsdatum :

    1981


    Format / Umfang :

    17 Seiten


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Shrouds for aerogenerator

    IGRA, O. | AIAA | 1976


    TURBINE PUMP ASSEMBLY WITH VACUUM PURGED CENTRIFUGAL IMPELLER SHROUDS

    HIMMELMANN RICHARD A | Europäisches Patentamt | 2017

    Freier Zugriff

    Composite Wall Concept for High-Temperature Turbine Shrouds–Heat Transfer Analysis

    Stepka, Francis S. / Ludwig, Lawrence P. | SAE Technical Papers | 1980



    Turbine pump assembly with vacuum purged centrifugal impeller shrouds

    HIMMELMANN RICHARD A | Europäisches Patentamt | 2019

    Freier Zugriff