from the conferences organized by TANGER Ltd.
The paper examines and compares the properties of laser clad deposits of Stellite 6 and Stellite 21 on 1.4923 + QT base material which is often used for power generation components. Cladding was performed using two different bead widths on a 63 mm diameter shaft with and without pre-heating. The widths of the beads deposited by a laser welding head were 1 millimetre and 3 millimetres. Using EDX, chemical dilution between the clad beads and the base material was examined. The paper gives a detailed description of metallographic observation of the claddings and the heat-affected zone and correlates the findings with hardness values. It also presents results of wear analysis conducted at simulated service conditions at 550°C.
Keywords: Stellite, cobalt-chromium coatings, laser cladding, wear© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.