| Autor: |
Kasterov, Artur, Shugurov, Artur, Kazachenok, Marina, Panin, Alexey, Chin-Hsiang Cheng, I-Ling Chang |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2016, Vol. 1783 Issue 1, p1-4, 4p, 1 Color Photograph, 2 Black and White Photographs, 1 Chart |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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