Jonda Ewa, Łatka Leszek, Pakieła Wojciech
Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego St. 18a, 44-100 Gliwice, Poland.
Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Łukasiewicza St. 5, 50-371 Wroclaw, Poland.
Materials (Basel). 2021 Mar 24;14(7):1594. doi: 10.3390/ma14071594.
In the present study, two different cermet coatings, WC-CrC-Ni and CrC-NiCr, manufactured by the high-velocity oxy-fuel (HVOF) method were studied. They are labeled as follows: WC-CrC-Ni coating-WC and CrC-NiCr coating-CrC. These coatings were deposited onto a magnesium alloy (AZ31) substrate. The goal of the study was to compare these two types of cermet coating, which were investigated in terms of microstructure features and selected mechanical properties, such as hardness, instrumented indentation, fracture toughness, and wear resistance. The results reveal that the WC content influenced the hardness and Young's modulus. The most noticeable effect of WC addition was observed for the wear resistance. WC coatings had a wear intensity value that was almost two times lower, equal to 6.5·10 mm/N·m, whereas for CrC ones it was equal to 12.6·10 mm/N·m. On the other hand, the WC coating exhibited a lower value of fracture toughness.
在本研究中，对通过高速氧燃料（HVOF）方法制造的两种不同的金属陶瓷涂层WC-CrC-Ni和CrC-NiCr进行了研究。它们的标记如下：WC-CrC-Ni涂层-WC和CrC-NiCr涂层-CrC。这些涂层被沉积在镁合金（AZ31）基体上。本研究的目的是比较这两种类型的金属陶瓷涂层，从微观结构特征和选定的力学性能（如硬度、仪器化压痕、断裂韧性和耐磨性）方面对它们进行研究。结果表明，WC含量影响硬度和杨氏模量。WC添加的最显著影响体现在耐磨性上。WC涂层的磨损强度值几乎低两倍，等于6.5·10⁻⁶mm/N·m，而CrC涂层的磨损强度值等于12.6·10⁻⁶mm/N·m。另一方面，WC涂层表现出较低的断裂韧性值。
