Journal
SURFACE & COATINGS TECHNOLOGY
Volume 154, Issue 2-3, Pages 182-188Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0257-8972(02)00035-X
Keywords
titanium diboride; sputtering; magnetron; wear
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TiB2 coatings deposited on hardened high-speed steel by magnetron sputtering were tested for their friction and wear behavior. Fretting wear tests (mode 1) were carried out on as-deposited coatings, and after annealing in air at 600 degreesC for 1 h. The as deposited magnetron sputtered TiB2 coating shows a better wear resistance (2000 mum(3)/J) than a hard TiN coating. On the contrary, the annealed TiB2 coating shows a low wear resistance (14 000 mum(3)/J) due to intensive cracking and oxidation. However, a low coefficient of friction was not noticed with neither as-deposited nor annealed TiB, coatings. (C) 2002 Elsevier Science B.V. All rights reserved.
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