Effect of Cu and Cr addition on the structure,anticorrosion andnanomechanical properties of new Al-Ni-Fe-(Cr,Cu) alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43928624" target="_blank" >RIV/60461373:22310/23:43928624 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0925838823021424" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838823021424</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2023.170839" target="_blank" >10.1016/j.jallcom.2023.170839</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Cu and Cr addition on the structure,anticorrosion andnanomechanical properties of new Al-Ni-Fe-(Cr,Cu) alloys

Popis výsledku v původním jazyce

This work used a thermodynamic approach to design and investigate new complex compositional Al-Ni-Fe-(Cr,Cu) alloys based on aluminum. This work tends to understand the change in microstructure during therapid solidification process and to evaluate the anticorrosion and nanomechanical properties of the developedalloys. Optimizing thermodynamic parameters such as configurational entropy and Gibbs free energy was usedto predict the chemical composition of the studied alloys. The samples were cooled in two ways. The ingotswere slowly cooled, while the plates were cast using fast cooling by the high-pressure die-casting method. Thepresence of a quasicrystalline decagonal phase D-Al71Ni24Fe5 was identified together with crystalline Al3Ni,Al3Ni2, and Al9Ni1.3Fe0.7 phases for the rapidly solidified Al72Ni24Fe4 alloy. The best electrochemical parameterswere observed for the Al72Ni24Fe2.5Cr1.5 alloy. The local galvanic microcells were formed in the studied alloysdue to large potential differences (&gt; 50 mV) between the Al-Ni and Al-Ni-Fe phases. The highest averageindentation hardness values were observed for Al72Ni24Fe4 (9.98 ± 1.75 GPa) after normal and rapid solidification. The higher ductility of the Al72Ni24Cr1.5Fe2.5 alloy compared to Al72Ni24Fe4 and Al72Ni24Cu1.5Fe2.5 couldbe confirmed by the lowest average hardness and Young’s modulus values.

Název v anglickém jazyce

Effect of Cu and Cr addition on the structure,anticorrosion andnanomechanical properties of new Al-Ni-Fe-(Cr,Cu) alloys

Popis výsledku anglicky

This work used a thermodynamic approach to design and investigate new complex compositional Al-Ni-Fe-(Cr,Cu) alloys based on aluminum. This work tends to understand the change in microstructure during therapid solidification process and to evaluate the anticorrosion and nanomechanical properties of the developedalloys. Optimizing thermodynamic parameters such as configurational entropy and Gibbs free energy was usedto predict the chemical composition of the studied alloys. The samples were cooled in two ways. The ingotswere slowly cooled, while the plates were cast using fast cooling by the high-pressure die-casting method. Thepresence of a quasicrystalline decagonal phase D-Al71Ni24Fe5 was identified together with crystalline Al3Ni,Al3Ni2, and Al9Ni1.3Fe0.7 phases for the rapidly solidified Al72Ni24Fe4 alloy. The best electrochemical parameterswere observed for the Al72Ni24Fe2.5Cr1.5 alloy. The local galvanic microcells were formed in the studied alloysdue to large potential differences (&gt; 50 mV) between the Al-Ni and Al-Ni-Fe phases. The highest averageindentation hardness values were observed for Al72Ni24Fe4 (9.98 ± 1.75 GPa) after normal and rapid solidification. The higher ductility of the Al72Ni24Cr1.5Fe2.5 alloy compared to Al72Ni24Fe4 and Al72Ni24Cu1.5Fe2.5 couldbe confirmed by the lowest average hardness and Young’s modulus values.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

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

1873-4669

Svazek periodika

960

Číslo periodika v rámci svazku

june

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001141195900001

EID výsledku v databázi Scopus

2-s2.0-85162139124