This paper shows that the laser cladding and alloying of a Ni-base sup
eralloy on a substrate of plain carbon steel can be successfully carri
ed out by irradiating a bilayer sample formed by metallic sheets mecha
nically clamped together. Under laser irradiation, both the overlayer
and the subs:rate are locally melted. Controlled dilution of the alloy
elements of the superalloy in the melted pool allows a variety of sur
face chemical compositions and microstructures to be obtained.