ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Ni base alloy ceramic composite coating fabricated through vacuum fusion sintering processcan acquire high strength and good thermal fatigue resistance. Composite coating was mainly composedof Ni base alloy and ellipsoidal ceramic particles with random orientation. The three-phases model is usedto study the thermal expansion strains in composite coating. First, Eshebly-Mori-Tanaka method wasused to determine effective eigen strain of two-phases model formed by the ellipsoidal matrix shell beingaround a ellipsoidal ceramic particle, then disturbance strain in two-phases model aroused thermalinconsistency is obtained. Finally thinking average stress in effective matrix vanish, the residual stressfield in Ni base alloy and particles can be gotten by considering random orientation of two-phases models.It will exert influence on strength and fatigue life of the composite coating
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1527.pdf
