Structural changes in the surface of titanium carbide and tungsten carbide hard alloys with nickel binder upon exposure to laser radiation

Autor:	Koval'chenko, M. S., Paustovskii, A. V., Minakov, V. N., Boleiko, B. M., Yurchuk, N. A., Tsyban', V. A.
Zdroj:	Powder Metallurgy and Metal Ceramics; September 1996, Vol. 34 p551-554, 4p
Abstrakt:	Pulsed laser action on cemented titanium carbide with nickel—chromium binder yields deep changes in its structure; and in the case of cemented tungsten carbide with nickel binder, the structural change is accompanied by phase transformations in the heat-affected zone. As a result of these changes, layers with thickness 30–60 µm and 30–60% greater hardness are formed. When the energy density of the laser radiation is higher than 200 J/cm2, thermal failure of cemented carbide surfaces occurs (observed as crack formation).
Databáze:	Supplemental Index
Externí odkaz:	Zobrazit plný text záznamu Full text from SpringerLink