Abstract
Hardfacing plates are being used in raw material conveying system of an integrated steel plants to mitigate the wear of chutes and hoppers. Four Fe-based commercial hardfacing alloys were studied in this work. To prepare test samples, mild steel base plates was used. In hardfaced plates, mild steel backing provides the weldability, formability, and ductility whereas the hard weld deposit provides the required wear resistance. This investigation aims to correlate microstructural, tribological and hardness properties of hardfacing plate samples with varying chemical composition. Microstructural characterization involved the morphological study and elemental analysis of different types of carbides through EDS, hardness evaluation mainly involved measurement of bulk hardness and micro-hardness, whereas tribological studies involved pin-on-disc wear test. Higher hardness doesn't always mean higher wear resistance. Presence of alloying elements resists the material removal by abrasive action and increases the wear resistance.
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