초록

High-speed steels (HSS) have high hardness, toughness, shock resistance, and wear resistance at room and increasedtemperatures due to their high ratio of alloy elements. Even though the low wear resistance compared with cemented carbidesis a significant disadvantage, recent advances in surface technologies have increased surface hardness and wear resistance. Inthe present study, the “cathodic arc vapor deposition” method from among the PVD coating methods was used for coatingthe sample surfaces of the glaze spray nozzles prepared using AISI M2 high-speed steel material prepared with TiN, AlCrN,AlCrTiN, and AlTiN. Scanning electron microscope (SEM) was used to identify that the coatings display a homogeneous andcrack-free distribution. The micro-hardness of AISI M2 high-speed steel-coated ceramic coatings was also investigated. Accordingly, the highest hardness value was obtained for the TiN-coated sample, whereas the lowest hardness value wasobtained for the AlCrTiN-coated sample. The ball-on-disc method was used to compare the wear characteristics of thesamples, considering the distance from the coatings until fracture. When the wear resistance of the coated samples wasexamined, it was observed that the most significant increase was obtained in AlCrN coated sample compared with the originalsample.

키워드

AISI M2 steel, Wear resistance, Ceramic based coatings, Physical Vapor Deposition Method (PVD).

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