naa a22 4500 510814670 CHVBK 20180411083500.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1134/S0031918X13070065 doi (NATIONALLICENCE)springer-10.1134/S0031918X13070065 Formation of a wear-resistant nanocrystalline layer strengthened by TiO2 (Rutile) particles on the surface of titanium [Elektronische Daten] [L. Korshunov, N. Chernenko] The effect of a thermomechanical treatment including severe plastic deformation under dry sliding friction conditions and subsequent heating in air to 350-650°C with further holding for 1 h on the structure and wear resistance of commercial titanium of grade VT1-0 has been studied. It has been shown that the deformation by friction leads to the formation of a nanocrystalline structure with α crystals 20-100 nm in size in a surface layer of titanium of about 10 μm thick. The heating of titanium deformed by friction at temperatures of 450-650°C for 1 h in air leads to the formation in the surface layer of this material ∼10 μm thick of nanocrystalline particles of the titanium oxide TiO2 (rutile), the volume fraction of which reaches tens of percents, while the dimensions are ∼10 nm. The presence in the surface layer of titanium of a nanocrystalline two-phase (α-Ti + rutile) structure leads to a significant increase in the wear resistance of the VT1-0 titanium in pair with steel 40Kh13. This is explained by the enhanced strength of the arising nanocrystalline layer and its positive influence (as of a transition layer) on the reduction of the level of internal stresses that exist at the interface between the titanium oxide TiO2 and the host metal. Pleiades Publishing, Ltd., 2013 deformation by friction nationallicence heating nationallicence nanocrystalline layer nationallicence TiO2 (rutile) particles nationallicence tribological properties nationallicence Korshunov L. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut Chernenko N. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/9(2013-09-01), 789-797 0031-918X 114:9<789 2013 114 11508 https://doi.org/10.1134/S0031918X13070065 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13070065 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Korshunov L. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Chernenko N. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, 620990, Ekaterinburg, Russia aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/9(2013-09-01), 789-797 0031-918X 114:9<789 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer