| 2002 №03 (09) | 2002 №03 (11) |
The Paton Welding Journal, 2002, #3, 48-49 pages
Laser cladding of hypoeutectoid complexly-alloyed steels
V.Yu. Khaskin, V.P. Garashchuk
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Process of laser alloying of steels 25Kh1M2FTR and 40KhN2MFA was investigated. Technology for strengthening surfaces of workpieces operating at high temperatures in aggressive environments was developed, providing an extension of their service life by more than 1.5-2 times. It was established that the laser alloying with a mixture of chromium and relite powders provided an increase of several times in wear resistance of hypoeutectoid complexly-alloyed steels and in their heat resistance from 400 to about 1000 oC
Keywords: laser radiation, cladding, complexly-alloyed steels, wear resistance, filler materials, microcracks, HF-preheating
References
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