Michalczewski Remigiusz, Kalbarczyk Marek, Słomka Zbigniew, Osuch-Słomka Edyta, Łuszcz Maciej, Liu Le, Antonov Maksim, Hussainova Irina
Łukasiewicz Research Network-Institute for Sustainable Technologies, ul. K. Pułaskiego 6/10, 26-600 Radom, Poland.
Faculty of Mechanical Engineering, Kazimierz Pułaski University of Technology and Humanities in Radom, ul. E. Stasieckiego 54, 26-612 Radom, Poland.
Materials (Basel). 2021 Nov 10;14(22):6771. doi: 10.3390/ma14226771.
The aim of the study was to investigate effect of Ti/TiB 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 TiB, Ti6Al4V with TiB 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/TiB 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 TiB (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.
本研究的目的是研究Ti/TiB复合材料成分和制造工艺参数对AlCrN涂层-复合材料系统摩擦学行为的影响。AlCrN涂层通过物理气相沉积(PVD)方法沉积。复合材料通过放电等离子烧结(SPS)由三种粉末混合物变体制造而成:Ti与TiB、Ti6Al4V与TiB以及Ti与B,并使用(五种)不同的烧结温度。对于每个开发的涂层-复合材料系统,使用销盘式SRV试验机在六个温度(从室温到900°C)下评估耐磨性。结果证实,涂层-基体组合的高温耐磨性取决于Ti/TiB复合材料成分和制造工艺参数。对于未涂层的复合材料,在高温下有两个过程控制磨损:裂纹扩展和表面氧化。复合材料表面存在的AlCrN涂层可保护表面免受深度裂纹和表面氧化。第一组复合材料在1250°C下由纯Ti和TiB的混合物(50/50 wt.%比例)烧结而成,第三组复合材料在1350°C下由纯Ti和B的混合物烧结而成,可实现令人满意的表面质量、PVD涂层的高附着力以及高温下的适度磨损。然而,由纯Ti和B制成的复合材料对于超过600°C的温度似乎是更好的解决方案。