Investigation of the Structural, Mechanical and Operational Properties of an Alloy AlSi18Cu3CrMn

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00389990" target="_blank" >RIV/68407700:21340/25:00389990 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/ma18235434" target="_blank" >https://doi.org/10.3390/ma18235434</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma18235434" target="_blank" >10.3390/ma18235434</a>

Result language

angličtina

Original language name

Investigation of the Structural, Mechanical and Operational Properties of an Alloy AlSi18Cu3CrMn

Original language description

A non-standardized hypereutectic aluminum-silicon alloy, AlSi18Cu3CrMn, was developed. To refine the structure of the studied composition, a phosphorus modifier was used in an amount of 0.04 wt %, and a complex modifying treatment was applied by combining the chemical elements of phosphorus, titanium, boron and beryllium (P, 0.04 wt %; Ti, 0.2 wt %; B, 0.04 wt %; Be, 0.007 wt %). To improve the mechanical and operational properties of the alloy, it was heat-treated (T6) at a temperature of 510-515 degrees C before quenching, with artificial aging applied at a temperature of 210 degrees C for 16 h. Phosphorus-modified alloy AlSi18Cu3CrMn was quenched in water at 20 degrees C, and the combined modified alloy was quenched in water at temperatures of 20 degrees C and 50 degrees C. By conducting a microstructural analysis, the free Si crystals and silicon crystals in the composition of the eutectic in the alloy structure were characterized, and by conducting XRD, the presence and type of secondary phases were established. The hardness of the alloy was measured, as well as the microhardness of the alpha-solid solution. Static uniaxial tensile testing was carried out at normal and elevated temperatures (working temperatures of 200 degrees C, 250 degrees C and 300 degrees C). By using a gravimetric method, the corrosion rate of the alloy in 1 M NaCl and 1 M H2SO4 was calculated. The mass wear, wear intensity and wear resistance of the studied AlSi18Cu3CrMn alloy were determined during reversible reciprocating motion in the boundary-layer lubrication regime.

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

20501 - Materials engineering

Project

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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

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

18

Issue of the periodical within the volume

23

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

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UT code for WoS article

001635060600001

EID of the result in the Scopus database

2-s2.0-105024565576