Precipitate microstructure evolution in exposed IN738LC superalloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00425766" target="_blank" >RIV/61389005:_____/14:00425766 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/14:00425766

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jallcom.2013.12.014" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2013.12.014</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2013.12.014" target="_blank" >10.1016/j.jallcom.2013.12.014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Precipitate microstructure evolution in exposed IN738LC superalloy

Popis výsledku v původním jazyce

Nickel base superalloy IN738LC has been studied after low-cycle fatigue by Small Angle Neutron Scattering (SANS). Samples subjected to high-temperature low-cycle fatigue were annealed at various temperatures to change the size and the distribution of precipitates. Ex and in situ SANS and TEM studies were performed. It was found that additional precipitates are formed either during slow cooling from high temperatures or after reheating above 570 degrees C. Their size and distribution were evaluated. Theprecipitates arise regardless the application of the mechanical load. Nevertheless, these small precipitates influence low-cycle fatigue resistance. From the SANS data, it can be also deduced that the equilibrium volume fraction of gamma'-precipitates attemperatures from room temperature to 825 degrees C is significantly higher than 45%. The kinetics of formation of small and medium-size gamma' precipitates at 700 and 800 degrees C was determined as well. (C) 2013 Elsevier B.V. All righ

Název v anglickém jazyce

Precipitate microstructure evolution in exposed IN738LC superalloy

Popis výsledku anglicky

Nickel base superalloy IN738LC has been studied after low-cycle fatigue by Small Angle Neutron Scattering (SANS). Samples subjected to high-temperature low-cycle fatigue were annealed at various temperatures to change the size and the distribution of precipitates. Ex and in situ SANS and TEM studies were performed. It was found that additional precipitates are formed either during slow cooling from high temperatures or after reheating above 570 degrees C. Their size and distribution were evaluated. Theprecipitates arise regardless the application of the mechanical load. Nevertheless, these small precipitates influence low-cycle fatigue resistance. From the SANS data, it can be also deduced that the equilibrium volume fraction of gamma'-precipitates attemperatures from room temperature to 825 degrees C is significantly higher than 45%. The kinetics of formation of small and medium-size gamma' precipitates at 700 and 800 degrees C was determined as well. (C) 2013 Elsevier B.V. All righ

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

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Svazek periodika

589

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

462-471

Kód UT WoS článku

000330181400072

EID výsledku v databázi Scopus

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