Wear behavior of as-deposited and oxidized ternary (Zr,Hf)N coatings |
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Authors: | Erdem Atar E Sabrikayali Huseyin Cimenoglu |
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Affiliation: | (1) the Materials Science and Engineering Department, Gebze Institute of Technology, 41400 Gebze, Kocaeli;(2) the Department of Metallurgy and Materials Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey |
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Abstract: | In the present study, the tribological performance of ternary (Zr,Hf)N coatings, whose Hf content was varied between 0 and
21 wt pct, has been systematically examined in the as-deposited and oxidized conditions. Coatings were applied on AISI D2
tool steel plates by arc physical vapor deposition (PVD). Oxidation was conducted at 400 °C for times up to 12 hours in air.
Wear tests revealed pronounced improvement in the wear resistance with increasing Hf content in the as-deposited coatings.
Oxidation for 12 hours yielded more than a fourfold increase in wear resistance. The beneficial effect of Hf on wear resistance
decreased upon oxidation. |
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