EFFECT OF THE ADDITION OF LI ON THE STRUCTURE AND MECHANICAL PROPERTIES OF HYPOEUTECTIC Al-Mg2Si ALLOYS

Olena Prach; Jakub Horník; Kostiantyn Mykhalenkov

doi:10.14311/AP.2015.55.0253

Acta Polytechnica (Aug 2015)

EFFECT OF THE ADDITION OF LI ON THE STRUCTURE AND MECHANICAL PROPERTIES OF HYPOEUTECTIC Al-Mg2Si ALLOYS

Olena Prach,
Jakub Horník,
Kostiantyn Mykhalenkov

Affiliations

Olena Prach: National Technical University of Ukraine “KPI” Faculty of Physical Engineering
Jakub Horník: CTU in Prague Faculty of. Mechanical engineering
Kostiantyn Mykhalenkov: National Technical University of Ukraine “KPI” Faculty of Physical Engineering

DOI: https://doi.org/10.14311/AP.2015.55.0253
Journal volume & issue: Vol. 55, no. 4
pp. 253 – 259

Abstract

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Alloys with various contents of Li were studied by means of differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and energy dispersive X-Ray microanalysis (EDX).The TEM investigations revealed that three different types of precipitation are formed in the alloy matrix during artificial aging. Two of the types represent different morphologies of Mg2Si precipitates. The appearance of the third type, identified as the δ-Al3Li phase, shows that the Al-Mg-Si system can be used successfully for designing an Li-containing casting alloy. However, this alloy has not yet been developed.

cast Al-Mg-Si alloys, Li addition, DSC, nanosize precipitation

Published in Acta Polytechnica

ISSN: 1210-2709 (Print); 1805-2363 (Online)
Publisher: CTU Central Library
Country of publisher: Czechia
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: https://ojs.cvut.cz/ojs/index.php/ap/index

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