New requirements to be met by modern alloys requires changing the currently used materials. This is accomplished by the use of newer and newer generation of production technologies, or by modifying the chemical composition of the alloys presently used. During our research we examined the casting aluminum alloy with the addition of antimony. The chemical composition of the investigated alloys was Mg 5.3-5.8%, Si 1.7-2.8%, Mn 0.5-1.0%, Cr 0.2-0.6%, antimony content ranged from 0.1 to 0.3%, 0.3-0.5% 0.5-0.9% 0.9-1.2%. Aluminium and antimony form an intermetallic phase AlSb, which serve as the nuclei for crystallization growth of other precipitates, with complex structure and chemical composition. The size of participates that grown on the surface of AlSb is about 10-15 nm in diameter. Their large concentration and equal, homogenous distribution give the chance to obtain high mechanical properties of investigated material. The aim of the article is characterization of participates formed during age hardening of aluminium alloy with the addition of antimony, as the intermetallic phase component. Structural characterisation of precipitates are made by using simultaneous HR-TEM and HR-STEM imaging and EDS analysis. Obtained results were compared with computer simulations.
To cite this abstract:Krzysztof Matus, Klaudiusz Gołombek, Mirosława Pawlyta; Characterization of nanometric-sized participates formed during heat treatment of aluminium alloy with antimony. The 16th European Microscopy Congress, Lyon, France. https://emc-proceedings.com/abstract/characterization-of-nanometric-sized-participates-formed-during-heat-treatment-of-aluminium-alloy-with-antimony/. Accessed: May 26, 2020
EMC Abstracts - https://emc-proceedings.com/abstract/characterization-of-nanometric-sized-participates-formed-during-heat-treatment-of-aluminium-alloy-with-antimony/