THE INFLUENCE OF ISOTHERMAL OXIDATION PARAMETERS ON THE TRIBOLOGICAL PROPERTIES OF TITANIUM
Journal Title: Tribologia - Year 2017, Vol 274, Issue 4
Abstract
The paper presents the results of tests concerning the tribological properties of titanium Grade 2 subjected to thermal oxidation at a temperature of 600°C and 700°C for 72 hours. Morphology of the obtained oxide scale was determined using a scanning electron microscope. After oxidation at 600°C, the resultant oxides concentrated mostly on the roughness elevations formed during the grinding of samples. On raising temperature to 700°C, finer and more agglomerated oxide particles were formed. Tribological tests have shown that titanium Grade 2 in a non-oxidised condition is characterised by very poor resistance to sliding wear. It has been found that the presence of an oxide layer on the surface of titanium significantly improves its poor tribological properties. Oxide layers obtained at temperatures of 600°C and 700°C allowed obtaining as much as a triple reduction of volumetric wear. Analysis of the morphology of the wear trace surface has shown the presence of corrugation wear on a non-oxidised specimen in the form of two alternate regions with different morphologies. It has been demonstrated that oxide layers obtained during thermal oxidation eliminate the phenomenon of corrugation wear.<br/><br/>
Authors and Affiliations
Krzysztof ANIOŁEK, Adrian BARYLSKI, Marian KUPKA, Michał DWORAK
Keywords
Related Articles
- EP ID EP238173
- DOI 10.5604/01.3001.0010.5973
- Views 83
- Downloads 0
Charakterystyki tribologiczne roślinnych olejów bazowych dla olejów hydraulicznych
Zbadano i porównano właściwości smarne roślinnych baz olejowych w aspekcie zastosowania dla biodegradowalnych olejów hydraulicznych. Oleje bazowe należały do trzech różnych klas lepkości: VG 32, VG 46 i VG 68. Wytworzono...
Właściwości tribologiczne kompozytów kauczuku butadienowo--akrylonitrylowego zawierających nanorurki węglowe
EROSIVE WEAR KINETICS OF CLIMATE-AGED EPOXY COATINGS
Erosive wear kinetics of epoxy coatings, previously aged with climatic factors, was examined. The maximum ageing period lasted 3 years. The examination was carried with a apparatus described in the Polish Standard PN -76...
ANALYSIS OF THE HEAT TRANSFER IN SEALING RINGS
The paper analyses heat transfer in a non-contacting face seal with micro-grooves on the end face of the sealing ring. The thermo- -hydrodynamic model of the face seal comprises the equation of the pressure distribution...
PROBABILISTIC STUDIES FOR (SLIDE&ROLLING) BEARING SEIZURE DETERMINATION
Selection, montage, and lubrication are the fundamental conditions, which have an influence on the correct and long-lasting work of bearing without seizure. The temperature of a correctly assembled and lubricated bearing...