Fatigue strength and failure mechanisms of nitrided small parts of a 30CrMoV9 steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25797000%3A_____%2F11%3A%230000276" target="_blank" >RIV/25797000:_____/11:#0000276 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.tandfonline.com/doi/abs/10.1080/10426910903388499" target="_blank" >http://www.tandfonline.com/doi/abs/10.1080/10426910903388499</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/10426910903388499" target="_blank" >10.1080/10426910903388499</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue strength and failure mechanisms of nitrided small parts of a 30CrMoV9 steel

Popis výsledku v původním jazyce

An investigation of nitriding effect on fatigue behavior of small-size specimens of a 30CrMoV9 steel heat treated to high strength was carried out and fatigue damage mechanisms were evaluated. The nitriding process resulted in unforeseen, mostly negativeeffects - in a strong reduction of fatigue life and fatigue limit in most cases. Fatigue limit only was slightly increased, namely, by 10% in case of smooth specimens. However, further small increase of load amplitude resulted in strongly reduced fatigue strength in comparison with specimens without nitriding. Nitriding applied on notched specimens reduced their fatigue limit by more than 40%. Fractographical and metallographical analyses showed an extensive brittle cracking of nitriding layer particularly in the vicinity of fatigue crack initiation sites.

Název v anglickém jazyce

Fatigue strength and failure mechanisms of nitrided small parts of a 30CrMoV9 steel

Popis výsledku anglicky

An investigation of nitriding effect on fatigue behavior of small-size specimens of a 30CrMoV9 steel heat treated to high strength was carried out and fatigue damage mechanisms were evaluated. The nitriding process resulted in unforeseen, mostly negativeeffects - in a strong reduction of fatigue life and fatigue limit in most cases. Fatigue limit only was slightly increased, namely, by 10% in case of smooth specimens. However, further small increase of load amplitude resulted in strongly reduced fatigue strength in comparison with specimens without nitriding. Nitriding applied on notched specimens reduced their fatigue limit by more than 40%. Fractographical and metallographical analyses showed an extensive brittle cracking of nitriding layer particularly in the vicinity of fatigue crack initiation sites.

Druh

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

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Materials and Manufacturing Processes

ISSN

1042-6914

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000288268400001

EID výsledku v databázi Scopus

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