Journal of Thermal Spray Technology

, Volume 19, Issue 3, pp 642–649

Coating of High-Alloyed, Ledeburitic Cold Work Tool Steel Applied by HVOF Spraying

  • B. Rajasekaran
  • G. Mauer
  • R. Vassen
  • A. Röttger
  • S. Weber
  • W. Theisen
Peer Reviewed

DOI: 10.1007/s11666-009-9456-5

Cite this article as:
Rajasekaran, B., Mauer, G., Vassen, R. et al. J Therm Spray Tech (2010) 19: 642. doi:10.1007/s11666-009-9456-5

Abstract

This study demonstrates the processing of a cold work tool steel (X220CrVMo13-4) coating using HVOF spraying. The coating formation was analyzed based on microstructure, phase, hardness, porosity, oxidation, and adhesion characteristics. An online diagnostic tool was utilized to find out the in-flight characteristics of powder such as temperature and velocity during the coating process to identify the influencing parameters to achieve dense cold work tool steel coatings with low oxidation. The influence of powder size, process parameters, and in-flight characteristics on the formation of cold work tool steel coatings was demonstrated. The results indicated that thick and dense cold work tool steel coatings with low oxidation can be obtained by the selection of appropriate powder size and process parameters.

Keywords

bond coatcold work tool steelHVOFonline diagnosticthermal spraying

Copyright information

© ASM International 2009

Authors and Affiliations

  • B. Rajasekaran
    • 1
  • G. Mauer
    • 1
  • R. Vassen
    • 1
  • A. Röttger
    • 2
  • S. Weber
    • 3
  • W. Theisen
    • 2
  1. 1.Institute of Materials Synthesis and Processing (IEF-1)Research Centre, Institute of Energy ResearchJuelichGermany
  2. 2.Faculty of Mechanical Engineering, Institute for Materials, Chair of Materials TechnologyRuhr-University BochumBochumGermany
  3. 3.Helmholtz-Zentrum Berlin für Materialien und Energie GmbHBerlinGermany