Laser alloying

Engineering relations for the depth of surface heating of metal by highly concentrated energy sources

“…In [14] a linear dependence of the melting depth on the parameter P/(d v)~ has been proved experimentally tbr the case of melting the surface of high-strength cast iron with globular graphite-by a plasma torch and fbr melting and hardening gray cast iron with vermicular graphite by a laser with scanning (250 Hz) and without scanning of the beam. In the same work data on laser hardening of carbon steels with different contents of carbon taken from [15] and on alloy steels 52100 (1% C, 1.5% Cr), AISI A2 ( 1% C, 5% Cr, 1.2% Mo) taken from [ 16] are represented as dependences of the thickness of the heated layer on P/(d v )0.4. In all cases the dependence is linear.…”

Phase transitions and microstructure of a laser-induced steel surface alloying

“…[1][2][3][4][5] Lyaknovich et al [1] have used a CW-CO 2 laser for melting the surface of a low-carbon steel coated with powdered boron mixture. With this technique, iron boride layers have been formed, which exhibit high hardness and good wear resistance.…”