Abstract— An analysis of the wearless effect for carbon steels subjected to surface alloying with metallic bismuth using the technology of short-pulse laser melting is performed. The tribological studies have been conducted in conjunction with industrial metal alloys such as gray cast iron, nickel-aluminum bronze, and aluminum alloy. Under boundary lubrication conditions, the bismuth-alloyed steel surface tested in contact with the analyzed alloys has shown ultralow value of the friction coefficient in the range from 0.04 to 0.08. It is established that a high level of fatigue strength of the aluminum alloy and the absence of adhesion with respect to a bismuth-alloyed steel surface provide conditions leading to the manifestation of the wearless effect (zero wear) at friction velocities amounting up to 9 m/s and at normal loads amounting up to 250 N. The metallographic analysis and 3D profilometry of friction surfaces have revealed that the process of self-organization of the contact zone is athermal in nature (without frictional heating) and is determined by a plastic flow of the contacting surfaces with no mutual destruction thereof.