The mechanical and tribological properties of CrBN-Ni-Cu-O coatings with different Ni and Cu contents

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

  • Qianzhi Wang
  • Mingling Zhou
  • Xuxin Jin
  • Fei Zhou
  • Zhifeng Zhou

Detail(s)

Original languageEnglish
Article number204167
Journal / PublicationWear
Volume488-489
Online published2 Nov 2021
Publication statusPublished - 15 Jan 2022

Abstract

Based on the advantages of Ni or Cu incorporation to the mechanical and tribological properties of nitride coatings, the co-incorporation of Ni and Cu at different ratios was employed on CrBN coatings. Results showed that Ni (11.01 at%) and Cu (3.41 at%) co-incorporation increased hardness from 24.4 GPa to 26.4 GPa. As a consequence, coatings wear rate decreased from 6.4 × 10−7 mm3/Nm to 5.4 × 10−7 mm3/Nm. At the meantime, friction coefficient declined from 0.30 to 0.28 due to CuO lubricating layer. However, when Cu content was high (10.68 or 15.05 at.%), the hardness of Ni-Cu-CrBN coatings sharply declined, which weakened wear resistance and increased friction coefficient. It indicated that Ni (11.01 at%) and Cu (3.41 at%) was the proper co-incorporation combination.

Research Area(s)

  • CrBN coating, Hardness, Incorporation, Plastic deformation, Tribology

Citation Format(s)

The mechanical and tribological properties of CrBN-Ni-Cu-O coatings with different Ni and Cu contents. / Wang, Qianzhi; Zhou, Mingling; Jin, Xuxin et al.
In: Wear, Vol. 488-489, 204167, 15.01.2022.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review