TaC Precipitation Kinetics During Cooling of Co-Re-Based Alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00543908" target="_blank" >RIV/61389005:_____/21:00543908 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/adem.202100129" target="_blank" >https://doi.org/10.1002/adem.202100129</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adem.202100129" target="_blank" >10.1002/adem.202100129</a>

Jazyk výsledku

angličtina

Název v původním jazyce

TaC Precipitation Kinetics During Cooling of Co-Re-Based Alloys

Popis výsledku v původním jazyce

Cobalt-rhenium (Co-Re) alloys are developed for high-temperature applications at approximate to 1200 degrees C and are strengthened by dispersion of nanosized tantalum carbide (TaC) precipitates. Herein, the precipitation behavior during cooling from supersolution depending on the cooling rate and the addition of chromium is presented. The phase composition (matrix phases and TaC) is analyzed from the wide-angle neutron diffraction patterns measured in situ during temperature cycling. The precipitation of nanosized TaC particles is measured by in situ and ex situ neutron and X-ray small-angle scattering. The in situ measurements are used to extract the temperature-dependent volume fraction of the precipitates. The final size distribution after cooling is extracted from the ex situ measurements. A Kampmann-Wagner's numerical (KWN) model is adapted to isochronal cooling processes. The in situ measurements give the unique possibility to calibrate the model parameters, whereas the ex situ measurements are used to assess the model predictions.

Název v anglickém jazyce

TaC Precipitation Kinetics During Cooling of Co-Re-Based Alloys

Popis výsledku anglicky

Cobalt-rhenium (Co-Re) alloys are developed for high-temperature applications at approximate to 1200 degrees C and are strengthened by dispersion of nanosized tantalum carbide (TaC) precipitates. Herein, the precipitation behavior during cooling from supersolution depending on the cooling rate and the addition of chromium is presented. The phase composition (matrix phases and TaC) is analyzed from the wide-angle neutron diffraction patterns measured in situ during temperature cycling. The precipitation of nanosized TaC particles is measured by in situ and ex situ neutron and X-ray small-angle scattering. The in situ measurements are used to extract the temperature-dependent volume fraction of the precipitates. The final size distribution after cooling is extracted from the ex situ measurements. A Kampmann-Wagner's numerical (KWN) model is adapted to isochronal cooling processes. The in situ measurements give the unique possibility to calibrate the model parameters, whereas the ex situ measurements are used to assess the model predictions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF16_013%2F0001794" target="_blank" >EF16_013/0001794: European Spallation Source - účast České republiky - OP</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Advanced Engineering Materials

ISSN

1438-1656

e-ISSN

1527-2648

Svazek periodika

23

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

2100129

Kód UT WoS článku

000655423200001

EID výsledku v databázi Scopus

2-s2.0-85106681168