Diagnostics of the Microstructural Changes in Sub-zero-processed Vanadis 6 P/M Ledeburitic Tool Steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F13%3A00202420" target="_blank" >RIV/68407700:21220/13:00202420 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Diagnostics of the Microstructural Changes in Sub-zero-processed Vanadis 6 P/M Ledeburitic Tool Steel

Popis výsledku v původním jazyce

Specimens made from P/M Vanadis 6 cold-work steel were austenitized, quenchced and tempered for various combinations of the parameters. The selected sets of samples, also in the sub-zero range, were treated at a temperature of -196°C after quenching. Themicrostructure was investigated as a function of the austenitizing temperature and the parameters of the sub-zero processing using transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HR-TEM) and X-ray diffraction. It was found that the as-quenched microstructure is composed of martensite, retained austenite and carbides. The sub-zero processing reduced the amount of retained austenite and led to an increase in the tetragonality of the martensitic lattice. As a result, the hardness of material was higher by 2 HRc before the tempering of the samples after the sub-zero processing, but the hardness of the sub-zero-processed material after tempering is about 2,5 HRc lower than that of the non-sub-zero-p

Název v anglickém jazyce

Diagnostics of the Microstructural Changes in Sub-zero-processed Vanadis 6 P/M Ledeburitic Tool Steel

Popis výsledku anglicky

Specimens made from P/M Vanadis 6 cold-work steel were austenitized, quenchced and tempered for various combinations of the parameters. The selected sets of samples, also in the sub-zero range, were treated at a temperature of -196°C after quenching. Themicrostructure was investigated as a function of the austenitizing temperature and the parameters of the sub-zero processing using transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HR-TEM) and X-ray diffraction. It was found that the as-quenched microstructure is composed of martensite, retained austenite and carbides. The sub-zero processing reduced the amount of retained austenite and led to an increase in the tetragonality of the martensitic lattice. As a result, the hardness of material was higher by 2 HRc before the tempering of the samples after the sub-zero processing, but the hardness of the sub-zero-processed material after tempering is about 2,5 HRc lower than that of the non-sub-zero-p

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI1%2F003" target="_blank" >FR-TI1/003: Zvýšení životnosti nástrojů z ledeburitických ocelí kryogenním zpracováním</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials and Technology

ISSN

1580-2949

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

6

Strana od-do

93-98

Kód UT WoS článku

000319783400014

EID výsledku v databázi Scopus

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