Mechanické vlastnosti a stabilita mikrostruktury lité niklové superslitiny IN792-A po dluhodobém žíhání.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F07%3A04135158" target="_blank" >RIV/68407700:21340/07:04135158 - 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

Mechanical Properties and Stability of the Microstructure of Cast Nickel Superalloy IN792-5A After Long-Term Exposure at High Temperatures

Popis výsledku v původním jazyce

The effect of a long-term exposure (LTE) at high temperature (900°C) up to 10 000 hours on the structure, mechanical properties, morphology and distribution of gamma' particles of cast Ni-based superalloy Inconel IN792-5A was studied. Before LTE, part ofthe specimens was subjected to a three stage heat treatment (HT) 1120°C/4h/air + 1080°C/4h/air + 845°C/24h/air. Nearly no differences in mechanical properties were found in the as-cast and HT condition. According to quantitative stereologic analysis (QSA), higher number of gamma' particles was found in the material after HT than in the as-cast state. Furthermore, the size of gamma' particles in the HT material was more uniform. Even after LTE of 10000 hours, the heat treated material maintained a better distribution of gamma' particles than as-cast specimens.

Název v anglickém jazyce

Mechanical Properties and Stability of the Microstructure of Cast Nickel Superalloy IN792-5A After Long-Term Exposure at High Temperatures

Popis výsledku anglicky

The effect of a long-term exposure (LTE) at high temperature (900°C) up to 10 000 hours on the structure, mechanical properties, morphology and distribution of gamma' particles of cast Ni-based superalloy Inconel IN792-5A was studied. Before LTE, part ofthe specimens was subjected to a three stage heat treatment (HT) 1120°C/4h/air + 1080°C/4h/air + 845°C/24h/air. Nearly no differences in mechanical properties were found in the as-cast and HT condition. According to quantitative stereologic analysis (QSA), higher number of gamma' particles was found in the material after HT than in the as-cast state. Furthermore, the size of gamma' particles in the HT material was more uniform. Even after LTE of 10000 hours, the heat treated material maintained a better distribution of gamma' particles than as-cast specimens.

Druh

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

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Materials Engineering

ISSN

1335-0803

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

5

Strana od-do

143-147

Kód UT WoS článku

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EID výsledku v databázi Scopus

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