Renewable Cr2O3 Nanolayer on Cr(W)N Surface for Seizure Prevention at Elevated Temperatures
Source abstract
Abstract
Chromium nitride coating is now the norm for improving the wear resistance of high-performance mechanical components. Even so, to prevent the seizure issue between the contacting interfaces, the prerequisites are oil or solid lubricants which would however lose the lubricating functionality at elevated temperatures due to breakdown or degradation. In this research, we utilize a Cr2O3 nanolayer formed on modified Cr(W)N coating to prevent the adhesive seizure for steel-based components. X-ray photoelectron spectroscopy (XPS) analyses show that the chromium oxide can be generated at 200–400 °C. At 400 °C, the Cr2O3 nanolayer is in situ formed and maintains a consistent thickness of 2.2 nm due to the oxide renewal during the heating-sliding operation. The in situ, renewable oxide nanolayer provides a novel approach to the technically unsolved seizure problem occurring in high-performance machines operated at elevated temperatures.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metal and Thin Film Mechanics · Lubricants and Their Additives · Tribology and Wear Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical, Automotive & Materials Engineering, University of Windsor, Windsor, Ontario N9B 3P4, Canada
Powertrain Engineering Research & Development Center, Ford Motor of Canada, Windsor, Ontario N9A 6X3, Canada
Funding
Natural Sciences and Engineering Research Council of Canada
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