Journal Title Materials Engineering - Materiálové in?inierstvo (MEMI) Journal Abbreviation Mateng Publisher Group The University of Žilina Website http://ojs.mateng.sk

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Title	Sub-zero Treatment of P/M Vanadis 6 Ledeburitic Tool Steel
Authors	Šuštarši�, Borivoj; Jenko, Darja; Sobotová, Jana; Salabová, Petra; Prikner, Otakar; Jur�i, Peter
Abstract	The Cr-V ledeburitic steel Vanadis 6 was vacuum austenitized, nitrogen gas quenched and double tempered at various combinations of regimes. For selected samples, a sub-zero period was inserted between quenching and tempering. The obtained results infer that: I) as-quenched microstructure consisted of martensite, retained austenite and undissolved carbides, II) sub-zero processing reduced the amount of the retained austenite and increased the tetragonality of the martensitic lattice, III) as-quenched hardness of the steel was higher by 2 – 3 HRC due to sub-zero processing, IV) as-tempered hardness increased with increasing austenitizing temperature but it decreased slightly with the sub-zero period, V) no negative impact of sub-zero processing on toughness was recorded, VI) wear resistance increased with sub-zero period when 100Cr6 steel has been used as a counterpart.
Publisher
Date	2013-09-29
Source
Rights	http://creativecommons.org/licenses/by-nc-nd/3.0/

 

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