Effect of laser cladding on wear and damage behaviors of heavy-haul wheel/rail materials

Improving rail wear and RCF performance using laser cladding

“…Failure in the region of 2.5 -3.0 km would be expected of a R260 Grade disc tested under these conditions [3]. The clad 2 layer R260 grade disc ran for the shortest distance and underperformed the reference disc with a running duration of only 1.07 km.…”

Wear and damage transitions of wheel and rail materials under various contact conditions

“…Fe-based alloy layer is composed of F (Fe, Ni) solid solution and Cr7C3 carbide and the surface hardness is about 670 HV0.5 [33]. Detailed information on the twin-disc machine and experimental approaches including the contact conditions (contact pressure, sliding speed, slip ratio, test duration, etc) can be found in previous publications [25,[30][31][32][33][34][35][36][37][38].…”

Investigation on microstructure and wear characteristic of laser cladding Fe-based alloy on wheel/rail materials

“…At present, laser surface treatment has been used widely to protect the contact surface from wear and fatigue damage [10][11][12], such as laser quenching, laser melting, laser cladding, and so on. Especially, laser cladding can be used to repair the damaged surface of materials due to wear and improve wear-resistance of materials [12].…”