STUDY ON DEPOSITION REGIMES AND MECHANICAL PROPERTIES OF WELD OVERLAY COATINGS FOR THE RESTORATION OF WORN AGRICULTURAL MACHINERY PARTS
ИЗСЛЕДВАНЕ НА РЕЖИМИТЕ НА НАНАСЯНЕ И НА МЕХАНИЧНИТЕ СВОЙСТВА НА НАВАРЪЧНИ ПОКРИТИЯ ПРИ ВЪЗСТАНОВЯВАНЕ НА ИЗНОСЕНИ ДЕТАЙЛИ ОТ ЗЕМЕДЕЛСКИ МАШИНИ
DOI : https://doi.org/10.35633/inmateh-78-86
Authors
Abstract
The stability limits of weld overlay deposition processes on worn surfaces of steel cylindrical parts from agricultural machinery were investigated. The microstructure of the deposited coatings was analyzed, and the main structural constituents were identified. The microhardness distribution across the coating depth was determined. Furthermore, the influence of key technological parameters on selected mechanical properties of the weld metal was examined. The obtained results enable the determination of optimal deposition regimes for the restoration of worn parts, with the aim of improving their wear resistance and operational reliability.
Abstract in Bulgarian



