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Corrosion Characteristics of Composites of (Mo, Ti)C Ti and TiC/Ti Type Manufactured with SLM technique

Figiel P., Biedunkiewicz A., Biedunkiewicz W., Grzesiak D., Pawlyta M.

Archives of Metallurgy and Materials

2019

Vol. 64, iss. 4

1617--1625

The addition of hard ceramic particles of nc-(Ti, Mo)C in carbon network into Ti matrix has been proved to be an efficient way to enhance their properties. The purpose of this work was to analyze the corrosion, tribological, mechanical and morphological effects of combining nc-(Ti, Mo)C/C with titanium metal, to create a unique composite via selective laser melting technique (SLM). Composites with different weight percentage (5, 10 and 20 wt%) of ceramic phase were produced. The samples of pure Ti and Ti-6Al-4V alloy were also tested, as a reference. These composites were examined for corrosion resistance in body fluid (artificial saliva solution). Moreover, the properties of titanium composites reinforced with nc-TiC powders were compared. It was stated that mechanical properties were significantly improved with increasing amount of nc-(Ti, Mo)C/C in Ti matrix. In terms of corrosion resistance, the composites showed worse properties compared to pure titanium and Ti-6Al-4V alloy, but better than TiC-reinforced composites.