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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

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

2025

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

18

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

20

Strana od-do

—

Kód UT WoS článku

001635060600001

EID výsledku v databázi Scopus

2-s2.0-105024565576