The effect of plasma torch weaving on microstructural evolution in multiple-pass plasma-transferred arc Fe-Cr-V-Mo-C coating

S. F. Gnyusov, A. S. Degterev, S. Yu Tarasov

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Microstructural evolution, hardness and abrasive wear resistance of plasma-transferred arc (PTA) multipass Fe-Cr-V-Mo-C coatings deposited using plasma source weaving has been investigated. As shown, the deposited metal contains structurally different as-deposited clad zone and reheated zone. There are reheated zones formed between the coating beads and between microbeads formed due to weaving mode deposition (WPTA). Both types of zones contain eutectic carbide recrystallization and incomplete melting regions. No high-martensite, low wear resistance high-tempered region inherent to standard multipass PTA deposition has been found. The overall wear resistance of the coating has been improved as compared to the PTA version.

Original languageEnglish
Pages (from-to)75-84
Number of pages10
JournalSurface and Coatings Technology
Volume344
DOIs
Publication statusPublished - 25 Jun 2018

Keywords

  • Abrasive wear
  • Plasma torch oscillation
  • Plasma-transferred arc coating
  • Reheated zone

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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