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The authors present a new method for research of scuffing. It is realized on the four-ball tester and considers scuffing as a process leading to seizure, i.e. the stopping of the relative movement of a tribosystem. During a run, load increases continuously.Using the method, tribological experiments were performed employing various lubricants; viscosity improvers, AW and EP additives were added to...
The paper considers some ways to improve surface engineered coatings for cutting tools. These coatings were formed by two stages: diffusion saturation with nitrogen (ion nitriding) and application of the (Ti, Cr)N hard coating by means of the cathode arc plasma deposition process (CAPDP). The coating includes also an additional ion alloyed layer applied to the previously nitrided surface of HSS. Such...
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