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:
A nanostructured TiO2 dominated ceramic coating was fabricated on Ti6Al4V by microarcoxidation (MAO). The coating with about 30 μm thickness is porous in the outer layer and compact in theinner layer, mainly composed of rutile and a small amount of anatase TiO2, both in nano grain structure.The hardness and elastic modulus of the compact layer in the coating are about 8.5 GPa and 87.4 GPa.The adhesion strength is about 70MPa. The friction coefficient of the polished coating sliding againstGCr15 steel is as low as 0.2, which is clearly superior to that of the unpolished one. This is attributed tothe low surface roughness. However, the oxidation wear mechanism occurring at the later stage of weartests leads to a gradual increase of friction coefficient
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1734.pdf