%0 Journal Article %T The Influence of Laser Hardening on the Metallographic and Tribotechnical Properties of Class 55 Steel Used in Diesel Locomotive Camshafts %A Biryukov, V.P. %A Miryaha, A.N. %A Yakubovsky, A.A. %A Kulakov, O.I. %A Goryunov, Y.A. %K Laser hardening, microhardness, microstructure, coefficient of friction, wear rate, wear resistance %J Bulletin of scientific research results %D 2025 %N 2025 %P 10 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"