<?xml version="1.0"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/"><rdf:Description rdf:about="https://dk.um.si/IzpisGradiva.php?id=50460"><dc:title>Wear resistance of coke-crushing hammers</dc:title><dc:creator>Zupanič,	Franc	(Avtor)
	</dc:creator><dc:subject>zvarni spoj</dc:subject><dc:subject>mikrostrukture</dc:subject><dc:subject>obrabna odpornost</dc:subject><dc:subject>toplotna obdelava</dc:subject><dc:subject>obraba</dc:subject><dc:subject>kladivo</dc:subject><dc:subject>weld deposition</dc:subject><dc:subject>microstructure</dc:subject><dc:subject>impact coke crusher</dc:subject><dc:subject>heat treatment</dc:subject><dc:subject>wear</dc:subject><dc:subject>hammer</dc:subject><dc:subject/><dc:description>This work investigated several methods for improving the wear resistance of the 42CrMo4 tool steel used for coke-crushing hammers. The methods embraced heat treatment for obtaining different combinations of strength and ductility of the bulk steel, and surface-engineering processes comprising TiN thin-film deposition using magnetron-sputtering, nitriding and WC/Ni weld deposit surfaced by gas metal arc (GMA) method. The wear-resistance was tested under industrial conditions. Oil quenching and tempering significantly increased the wear resistance in comparison to the as-received condition. Conversely, nitriding and TiN-hard coating did not show any significant improvement. WC/Ni weld deposit provided the best protection against wear, which was caused predominantly by hard abrasive particles present in the coke.</dc:description><dc:date>2013</dc:date><dc:date>2015-07-10 12:40:12</dc:date><dc:type>Delo ni kategorizirano</dc:type><dc:identifier>50460</dc:identifier><dc:language>sl</dc:language></rdf:Description></rdf:RDF>