Reactive magnetron sputtered wear resistant multilayer transition metal carbide coatings: microstructure and tribo-mechanical properties
作者： D. Dinesh Kumar , N. Kumar , S. Kalaiselvam , R. Radhika , S. Dash
DOI: 10.1039/C5RA16465F
关键词:
摘要: To enhance the performance and durability of mechanical components, surface properties need to be modified. In this work, a unique combination transition metal carbide (TMC) multilayer coatings (TiC/CrC, TiC/ZrC TiC/WC) were deposited by reactive DC magnetron sputtering on 316LN steel substrates. GIXRD results showed presence an amorphous CrC phase in TiC/CrC multilayer, whereas, crystalline TiC, ZrC W2C phases observed their respective coatings. FESEM analysis indicated non-columnar structures TMC layers all samples, except layer multilayer. Solid solutions TiC WC at interface identified due migration W atoms into crystal lattices. The poor nature led lower hardness weak wear resistance. However, enhanced tribo-mechanical TiC/WC This is explained improved crystallinity resistance plastic deformation. For selected tribological parameters, abrasive, adhesive combined abrasive/adhesive modes are major governing factors determining behaviors TiC/CrC, coatings, respectively. chemical stability deformed tracks was Raman spectroscopy.
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