Effect of the prior nitriding treatment on the adhesion and wear resistance of Cr/CrN coatings deposited over AISI 4140 steel

Authors

  • Ana Maskavizan Grupo de Ingeniería de Superficies, Facultad Regional Concepción del Uruguay, Universidad Tecnológica Nacional – Argentina
  • Sonia Brühl Directora
  • Adriana Márquez Codirectora
  • Eugenia Dalibón Codirectora

DOI:

https://doi.org/10.33414/ajea.1109.2022

Keywords:

coatings, adhesion, wear

Abstract

Ceramic coatings improve the wear resistance of mechanical parts. However, adhesion of hard coatings to soft and ductile steel is usually poor because coating and substrate do not undergo similar deformations. In this work, coatings made of a Cr and a CrN layer deposited by cathodic arc PVD on plasma nitrided and untreated AISI 4140 steel were studied. Microstructure was examined by X-Ray Diffraction. Adhesion was analyzed by Rockwell C indentation and Scratch Test and wear resistance was evaluated by pin-on-disk test. The results show that the coatings deposited on nitrided steel exhibit better adhesion. The wear resistance of this system was found to be better than the non-nitrided and coated steel and the nitrided steel.

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Published

2022-10-03

How to Cite

Maskavizan, A., Brühl, S., Márquez, A., & Dalibón, E. (2022). Effect of the prior nitriding treatment on the adhesion and wear resistance of Cr/CrN coatings deposited over AISI 4140 steel. AJEA (Proceedings of UTN Academic Conferences and Events), (15). https://doi.org/10.33414/ajea.1109.2022

Conference Proceedings Volume

No. 15 (2022): VI Conference on Exchange and Dissemination of Research Results of Doctoral Students in Engineering

Section

Proceedings - Materials - Cooperative Linkage Modality