Influence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00524220" target="_blank" >RIV/68081723:_____/20:00524220 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/20:PU135044

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/13/3/578" target="_blank" >https://www.mdpi.com/1996-1944/13/3/578</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13030578" target="_blank" >10.3390/ma13030578</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloys

Popis výsledku v původním jazyce

The focus of this study is the evaluation of the influence of Ti concentration on the tensile properties of powder metallurgy high entropy alloys. Three Ni1.5Co1.5CrFeTiX alloys with X = 0.3, 0.5 and 0.7 were produced by mechanical alloying and spark plasma sintering. Additional annealing heat treatment at 1100 degrees C was utilized to obtain homogenous single-phase face centered cubic (FCC) microstructures, with minor oxide inclusions. The results show that Ti increases the strength of the alloys by increasing the average atomic size misfit i.e., solid solution strengthening. An excellent combination of mechanical properties can be obtained by the proposed method. For instance, annealed Ni1,5Co1,5CrFeTi0.7 alloy possessed the ultimate tensile strength as high as similar to 1600 MPa at a tensile ductility of similar to 9%, despite the oxide contamination. The presented results may serve as a guideline for future alloy design of novel, inclusion-tolerant materials for sustainable metallurgy.

Název v anglickém jazyce

Influence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloys

Popis výsledku anglicky

The focus of this study is the evaluation of the influence of Ti concentration on the tensile properties of powder metallurgy high entropy alloys. Three Ni1.5Co1.5CrFeTiX alloys with X = 0.3, 0.5 and 0.7 were produced by mechanical alloying and spark plasma sintering. Additional annealing heat treatment at 1100 degrees C was utilized to obtain homogenous single-phase face centered cubic (FCC) microstructures, with minor oxide inclusions. The results show that Ti increases the strength of the alloys by increasing the average atomic size misfit i.e., solid solution strengthening. An excellent combination of mechanical properties can be obtained by the proposed method. For instance, annealed Ni1,5Co1,5CrFeTi0.7 alloy possessed the ultimate tensile strength as high as similar to 1600 MPa at a tensile ductility of similar to 9%, despite the oxide contamination. The presented results may serve as a guideline for future alloy design of novel, inclusion-tolerant materials for sustainable metallurgy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA19-22016S" target="_blank" >GA19-22016S: Dvoufázové slitiny se zvláštními vlastnostmi založené na nanodvojčatění</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

578

Kód UT WoS článku

000515503100085

EID výsledku v databázi Scopus

2-s2.0-85079650741