Autors: Chitanov V., Kolchev St., Cholakova T., Kolaklieva L., Kakanakov R., Pashinski, C. O., Hristeva N.
Title: Low temperature quaternary hard coatings with Cr- to Ti-based transition composition
Keywords: missed

Abstract: A new quaternary hard coating based on Cr/CrN adhesion layers and a TiCrAlN main coating layer was developed for low-temperature applications. It was deposited in a closed-field unbalanced magnetron sputtering equipment. The nanohardness, adhesion and thickness of the coating were characterized by Anton Paar’s nano-indenter tester, scratch tester and calotester. The chemical composition and surface morphology were investigated by a Hitachi SU 500 scanning electron microscope equipped with an energy dispersion analyzer. The coating showed a low coefficient of friction and a good adhesion strength between the substrate and the Cr/CrN transition layer, as well as between the transition layer and the TiCrAlN layer. The nanohardness achieved was 33 GPa. The research results showed that the quaternary Cr/CrN/TiCrAlN hard coating deposited at 200 oC has mechanical properties comparable to coatings with a similar composition deposited at standard deposition temperatures.

References

    Issue

    VEIT-2021, 2022, Bulgaria, DOI 10.1088/1742-6596/2240/1/012014

    Вид: пленарен доклад в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus