The effect of laser treatment of WC-Co coatings on their failure under thermal cycling

Artur Kasterov, Artur Shugurov, Marina Kazachenok, Alexey Panin, Chin Hsiang Cheng, I. Ling Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The given paper studies the effect of surface laser treatment of WC-Co coatings on their surface morphology, phase composition and thermal cycling behavior. The coatings were sprayed on stainless steel substrates with the use of a high velocity oxy fuel spraying process. Application of the scanning electron microscopy and X-ray diffraction showed that re-melting of the coating surface layer during laser treatment induced changes in its phase composition as well as the formation of regular rows of globular asperities on the coating surface. The latter resulted in a sharp increase in thermal shock resistance of the laser treated WC-Co coatings under water quench tests; its underlying mechanism are proposed and discussed in the paper.

Original languageEnglish
Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Subtitle of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
EditorsSergey G. Psakhie, Vasily M. Fomin, Victor E. Panin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414457
DOIs
Publication statusPublished - 2016 Nov 10
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
Duration: 2016 Sep 192016 Sep 23

Publication series

NameAIP Conference Proceedings
Volume1783
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
CountryRussian Federation
CityTomsk
Period16-09-1916-09-23

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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