Changes of the Fracture Behaviour of Medium-Alloyed Ledeburitic Tool Steel after Plasma Nitriding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F07%3A02136870" target="_blank" >RIV/68407700:21220/07:02136870 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/45807698:_____/07:#0000016

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

čeština

Název v původním jazyce

Changes of the Fracture Behaviour of Medium-Alloyed Ledeburitic Tool Steel after Plasma Nitriding

Popis výsledku v původním jazyce

heat treated using two basic regimes and a different hardness was obtained. The cross-section of the specimens was 10 mm x 10 mm. Plasma nitriding was carried out using various combinations of temperature, processing time and atmosphere. Fracture toughness tests using the method of static three-point bending showed the dominant role of the presence of a nitrided layer on both, the bending strength and the fracture mechanism. Only if the material was not plasma nitrided, did the role of the austenitizingtemperature become clear and the higher was the temperature, the lower was the three-point bending strength. The initiation and the propagation of the fracture was low-energetic ductile when the material was hardened and tempered. The presence of the plasma-nitrided region on the surface changes the initiation as well as the propagation mechanism to that of cleavage.

Název v anglickém jazyce

Changes of the Fracture Behaviour of Medium-Alloyed Ledeburitic Tool Steel after Plasma Nitriding

Popis výsledku anglicky

heat treated using two basic regimes and a different hardness was obtained. The cross-section of the specimens was 10 mm x 10 mm. Plasma nitriding was carried out using various combinations of temperature, processing time and atmosphere. Fracture toughness tests using the method of static three-point bending showed the dominant role of the presence of a nitrided layer on both, the bending strength and the fracture mechanism. Only if the material was not plasma nitrided, did the role of the austenitizingtemperature become clear and the higher was the temperature, the lower was the three-point bending strength. The initiation and the propagation of the fracture was low-energetic ductile when the material was hardened and tempered. The presence of the plasma-nitrided region on the surface changes the initiation as well as the propagation mechanism to that of cleavage.

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/1P05OE192" target="_blank" >1P05OE192: Progresivní povrchové úpravy kovů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2007

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

41

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

6

Strana od-do

231-236

Kód UT WoS článku

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EID výsledku v databázi Scopus

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