TEM-EELS study of low-friction superlattice TiAlN/VN coating: the wear mechanisms |
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| Authors: | Q Luo Z Zhou WM Rainforth PEh Hovsepian |
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| Affiliation: | (1) Materials and Engineering Research Institute, Sheffield Hallam University, Sheffield, S1 1WB, UK;(2) Department of Engineering Materials, University of Sheffield, Sheffield, S1 3JD, UK |
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| Abstract: | A 20–50 nm thick tribofilm was generated on the worn surface of a multilayer coating TiAlN/VN after dry sliding test against an alumina counterpart. The tribofilm was characterized by applying analytical transmission electron microscopy techniques with emphasis on detailed electron energy loss spectrometry and energy loss near edge structure analysis. Pronounced oxygen in the tribofilm indicated a predominant tribo-oxidation wear. Structural changes in the inner-shell ionization edges of N, Ti and V suggested decomposition of nitride fragments. |
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| Keywords: | TiAlN/VN tribofilm transmission electron microscopy (TEM) electron energy loss spectrometry (EELS) wear mechanisms |
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