Structural characterization and selected properties of newly-developed Al-Cr-Pd and Al-Fe-Pd alloys with structurally complex intermetallics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932099" target="_blank" >RIV/60461373:22310/25:43932099 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22350/25:43932099

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0925838825017359" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838825017359</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2025.180177" target="_blank" >10.1016/j.jallcom.2025.180177</a>

Result language

angličtina

Original language name

Structural characterization and selected properties of newly-developed Al-Cr-Pd and Al-Fe-Pd alloys with structurally complex intermetallics

Original language description

In this work, the structure and selected properties of newly developed Al-Cr-Pd (72 at% of Al, 24 at% of Cr, 4 at% of Pd) and Al-Fe-Pd (72 at% of Al, 24 at% of Fe, 4 at% of Pd) alloys in the form of ingots were characterized. The structure of the alloys was described on X-ray diffraction, transmission electron microscopy, and scanning electron microscopy studies. The Al-Cr-Pd and Al-Fe-Pd alloys were examined for thermal properties (differential thermal analysis), corrosion resistance (electrochemical and scanning Kelvin probe force microscopy studies), and mechanical properties (Vickers hardness and wear resistance). Both alloys were characterized by a multiphase structure with the structurally complex intermetallics. The presence of decagonal electron diffraction (DAlPdCr) for the Al-Cr-Pd alloy was confirmed by transmission electron microscopy. The Al-Cr-Pd alloy showed a higher tendency to passivate than the Al-Fe-Pd alloy in the 3.5 % NaCl solution environment. However, the oxide layer on Al-Cr-Pd was discontinuous and less protective against further corrosion progression, as indicated by the higher corrosion current density for this alloy. For both alloys, a high contrast of Volta potentials was identified between the phases with and without palladium, which may favour the formation of galvanic microcells. The AlFe-Pd alloy showed a higher average hardness and a greater resistance to wear than the Al-Cr-Pd alloy.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20500 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

1873-4669

Volume of the periodical

1024

Issue of the periodical within the volume

1024

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

nestránkováno

UT code for WoS article

001467373500001

EID of the result in the Scopus database

2-s2.0-105001932562