Microstructure and wear resistance of Fe-Cr-C-Mo-V-Ti-N hardfacing layers

Won Chol Son; Yong Gwang Jong; Myong Chol Pak; Jin Song Ma

Microstructure and wear resistance of Fe-Cr-C-Mo-V-Ti-N hardfacing layers

Materials Science 2021-04-26 v1 Applied Physics

Authors: Won Chol Son , Yong Gwang Jong , Myong Chol Pak , Jin Song Ma

Abstract

In this paper, to improve wear resistance of components such as screws under severe friction-wear, Fe-Cr-C-Mo-V-Ti-N hardfacing coatings were further developed. The hardfacing coatings were acquired by shielded manual arc welding (SMAW) method. The ferroalloys added into the coating flux of the hardfaced electrode were jointly nitrided. The microstructure of the coatings was carried out using X-ray diffraction(XRD), optical microscope(OM), field emission scanning electron microscope (FESEM) and energy dispersive Xray spectrometry (EDS). In addition, FactSage 7.0 software was employed to calculate the equilibrium phase diagram of the hardfacings. The wear resistance was performed on a pin-on-disc machine. The Fe-Cr-C- Mo-V-Ti-N hardfacings exhibited higher wear resistance than cladding layer without nitrides.

Keywords

hardfacing coating microstructure wear resistance fe-cr-c-mo-v-ti-n shielded metal arc welding nitriding

Cite

@article{arxiv.2104.11402,
  title  = {Microstructure and wear resistance of Fe-Cr-C-Mo-V-Ti-N hardfacing layers},
  author = {Won Chol Son and Yong Gwang Jong and Myong Chol Pak and Jin Song Ma},
  journal= {arXiv preprint arXiv:2104.11402},
  year   = {2021}
}

Comments

9 pages, 12 figures

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