Nanomechanical properties of duplex treated 42CrMo4 steel

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

External organisations

  • Southeast University
  • ASOCIACION DE LA INDUSTRIA NAVARRA

Abstract

Active screen plasma nitriding (ASPN) has attracted interest from researchers and industries as it can overcome several intrinsic problems in direct current glow discharge plasma nitriding such as arcing, hollow cathode, edge effects and the strong temperature dependence on the shape of the samples. In this study, an advanced duplex system based on ASPN and chromium nitride coating was synthesised on 42CrMo4 steels. The effects of ASPN on the mechanical properties, nanoimpact resistance and scratch resistance at different load ranges were investigated. The results show that the surface hardness H, reduced elastic modulus Er and the ratios of H/Er and H 3/Er 2 can significantly be improved at the testing load range from 5 to 100 mN. The enhanced nanoimpact and scratch resistance can be well correlated to the improved H/Er and H 3/Er 2.

Details

Original languageEnglish
Pages (from-to)462-467
Number of pages6
JournalSurface Engineering
Volume29
Issue number6
Publication statusPublished - 1 Jan 2013

Keywords

  • CrN, Nanoimpact, Nanoindentation, Nanoscratch, Nitriding