Sliding Wear Performance of AlCrN Coating on TiB2/Ti Composites at High Temperatures
| Autor: | Le Liu, Maciej Łuszcz, Remigiusz Michalczewski, Marek Kalbarczyk, Maksim Antonov, Irina Hussainova, E. Osuch-Słomka, Zbigniew Słomka |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
wear
Technology Materials science TiB2/Ti composites Composite number Spark plasma sintering Sintering SPS engineering.material Surface engineering Coating surface engineering General Materials Science Composite material cermet Microscopy QC120-168.85 QH201-278.5 Titanium alloy coating Cermet Engineering (General). Civil engineering (General) TK1-9971 adhesion Descriptive and experimental mechanics Physical vapor deposition engineering tribology Electrical engineering. Electronics. Nuclear engineering TA1-2040 |
| Zdroj: | Materials, Vol 14, Iss 6771, p 6771 (2021) Materials Volume 14 Issue 22 |
| ISSN: | 1996-1944 |
| Popis: | The aim of the study was to investigate effect of Ti/TiB2 composite composition and manufacturing technology parameters on the tribological behaviour of AlCrN coating-composite system. The AlCrN coating was deposited by PVD (Physical Vapour Deposition) method. The composites were manufactured by spark plasma sintering (SPS) from three variants of powders mixtures: Ti with TiB2, Ti6Al4V with TiB2 as well as Ti with B, using (five) different sintering temperatures. For each of the developed coating-composite systems, the wear resistance was evaluated using ball-on-disc SRV tester, at six temperatures (from room temperature up to 900 °C). The results confirmed that high-temperature wear resistance of the coating–substrate combination depends on Ti/TiB2 composite composition and manufacturing technology parameters. In the case of uncoated composite, two processes manage the wear at high temperatures: cracking propagation and surface oxidation. The presence of AlCrN coating on the composite surface protects the surface against deep cracking and surface oxidation. The composites of Group I, sintered at 1250 °C from a mixture of pure Ti and TiB2 (50/50 wt.% ratio) as well as Group III, sintered at 1350 °C from a mixture of pure Ti and B allow the achievement of a satisfactory surface quality, a high adhesion of the PVD coating and moderate wear at high temperatures. However, the composite made of pure Ti and B seems to be a better solution for temperatures exceeding 600 °C. |
| Databáze: | OpenAIRE |
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