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HVOF coatings of diamalloy 2002 and diamalloy 4010 onto steel: Tensile and bending response of coatings

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

HVOF coating of Diamalloy 2002 powders and Diamalloy 4010 powders as well as two-layered coatings consisting of these powders is carried out. In the two-layered structure, Diamalloy 4010 is sprayed at the substrate surface while Diamalloy 2002 is sprayed on the top of Diamalloy 4010 coating. The mechanical properties of the coatings are examined through tensile and three-point bending tests. The coating microstructure and morphology are examined using the Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS) and X-ray diffraction (XRD). It is found that the coating produced is free from defects including voids and cracks. The failure mechanism of coating during tensile and three-point bending tests is mainly crack formation and propagation in the coating. The elastic modulus of coating produced from Diamalloy 2002 is higher than that of Diamalloy 4010 coating, which is due to the presence of 12% WC in the coating.

Original languageEnglish
Title of host publicationInternational Conference on Advances in Materials and Processing Technologies, AMPT2010
Pages1347-1352
Number of pages6
DOIs
StatePublished - 2010

Publication series

NameAIP Conference Proceedings
Volume1315
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Keywords

  • Diamalloy 2002
  • Diamalloy 4010
  • HVOF
  • tensile
  • three-point bening

ASJC Scopus subject areas

  • General Physics and Astronomy

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