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C/C compositesandTi6Al4V sheetswerejoinedusinganovelCu/TiCuZrNicompositebrazeandtheeffectofCufoilthicknessonthe microstructure andmechanicalpropertiesofthejointswereinvestigated.Acompositejoiningmaterial,consistingofaTiCparticlereinforced brazing alloyformedinsituduringthebrazingprocesswasobtained.Beforethejoiningprocess,theC/Ccompositesurfacewasmodified by solid statereactionwithchromiumtoformachromiumcarbidecoating.ThiscarbidereactionlayercanreactwiththeTi-basedbrazingalloyand form evenlydistributedTiCparticles.Themaximumapparentshearstrengthofas-receivedjointwas3978.5 MPaobtainedbyusinga40 μm thick CufoiltogetherwiththeTiCuZrNialloy;thisvaluewas70%higherthanthemechanicalstrengthobtainedforjointsbrazedwiththe TiCuZrNi alloyonly.

Microstructure and mechanical properties of C/C composite/Ti6Al4V joints with aCu/TiCuZrNi composite brazing alloy / Song, Xinrui; Li, Hejun; Casalegno, Valentina; Salvo, Milena; Ferraris, Monica; Zeng, Xierong. - In: CERAMICS INTERNATIONAL. - ISSN 0272-8842. - 42:5(2016), pp. 6347-6354. [10.1016/j.ceramint.2016.01.026]

Microstructure and mechanical properties of C/C composite/Ti6Al4V joints with aCu/TiCuZrNi composite brazing alloy

CASALEGNO, VALENTINA;SALVO, Milena;FERRARIS, Monica;
2016

Abstract

C/C compositesandTi6Al4V sheetswerejoinedusinganovelCu/TiCuZrNicompositebrazeandtheeffectofCufoilthicknessonthe microstructure andmechanicalpropertiesofthejointswereinvestigated.Acompositejoiningmaterial,consistingofaTiCparticlereinforced brazing alloyformedinsituduringthebrazingprocesswasobtained.Beforethejoiningprocess,theC/Ccompositesurfacewasmodified by solid statereactionwithchromiumtoformachromiumcarbidecoating.ThiscarbidereactionlayercanreactwiththeTi-basedbrazingalloyand form evenlydistributedTiCparticles.Themaximumapparentshearstrengthofas-receivedjointwas3978.5 MPaobtainedbyusinga40 μm thick CufoiltogetherwiththeTiCuZrNialloy;thisvaluewas70%higherthanthemechanicalstrengthobtainedforjointsbrazedwiththe TiCuZrNi alloyonly.
2016
CERAMICS INTERNATIONAL
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2634071
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