Abstract—

Comparative studies of resistance to various types of wear of nanostructured Ti–Al–Ni–N and Ti–Al–Ni–Mo–N coatings characterized by a homogeneous and multilayer architecture, respectively, were carried out. The impact of Mo and the architecture of coatings on the characteristics of resistance to wear and erosion of the studied ceramic–metal structures was estimated. It was found that neither coatings is characterized by a brittle failure mechanism. The increased fracture toughness of highly hard coatings of both compositions is governed by the presence of a plastic metal phase, a branched network of nanograin boundaries (Ti–Al–Ni–N), and a multilayer architecture (Ti–Al–Ni–N–Mo), which suppress crack growth. Both coatings showed high resistance to water erosion wear. The presence of molybdenum in the composition of the Ti–Al–Ni–Mo–N coating provides a decrease in the sliding friction coefficient at elevated temperatures due to the formation of an oxide phase (MoO₃), which acts as a solid lubricant.

中文翻译：

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Ti-Al-Ni-N和Ti-Al-Ni-Mo-N离子-等离子体真空电弧涂层的耐磨性和耐蚀性比较研究

摘要—

进行了分别以均质和多层结构为特征的纳米结构Ti–Al–Ni–N和Ti–Al–Ni–Mo–N涂层的各种耐磨性的比较研究。估算了钼和涂层结构对所研究的陶瓷-金属结构的耐磨性和耐蚀性的影响。已经发现，两种涂层都不具有脆性破坏机理的特征。两种成分的高硬度涂层的断裂韧性均受塑料金属相，纳米晶界的分支网络（Ti-Al-Ni-N）和多层结构（Ti-Al-Ni-N）的控制。 -Mo），可抑制裂纹扩展。两种涂层均显示出高的耐水蚀磨损性。₃），其充当固体润滑剂。