Synthesis of an Al–Mn-Based Alloy Containing In Situ-Formed Quasicrystals and Evaluation of Its Mechanical and Corrosion Properties

An Al–Mn alloy with additions of copper, magnesium, and silicon was prepared and cast into a copper mold. It contains in situ-formed icosahedral quasicrystals (iQCs), as confirmed by electron backscatter diffraction. The aim of this work is to present the mechanical and corrosion properties of this...

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Veröffentlicht in:JOM (1989) 2018-11, Vol.70 (11), p.2698-2703
Hauptverfasser: Naglič, Iztok, Samardžija, Zoran, Delijić, Kemal, Kobe, Spomenka, Leskovar, Blaž, Markoli, Boštjan
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container_end_page 2703
container_issue 11
container_start_page 2698
container_title JOM (1989)
container_volume 70
creator Naglič, Iztok
Samardžija, Zoran
Delijić, Kemal
Kobe, Spomenka
Leskovar, Blaž
Markoli, Boštjan
description An Al–Mn alloy with additions of copper, magnesium, and silicon was prepared and cast into a copper mold. It contains in situ-formed icosahedral quasicrystals (iQCs), as confirmed by electron backscatter diffraction. The aim of this work is to present the mechanical and corrosion properties of this alloy and compare its properties with some conventional commercial materials. The compressive strength and compressive yield strength were 751 MPa and 377 MPa, while the compressive fracture strain was 19%. It was observed that intensive shearing caused the final fracture of the specimens and the fractured iQC dendrites still showed cohesion with the α-Al matrix. The polarization resistance and corrosion rate of the artificially aged alloy were 7.30 kΩ and 1.2 μm/year. The evaluated properties are comparable to conventional, discontinuously reinforced aluminum metal-matrix composites and structural wrought aluminum alloys.
doi_str_mv 10.1007/s11837-018-2945-6
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source SpringerLink Journals - AutoHoldings
subjects Alloys
Aluminum
Aluminum base alloys
Aluminum: New Alloys and Heat Treatment
Chemistry/Food Science
Compressive properties
Compressive strength
Continuous casting
Copper
Corrosion
Corrosion rate
Corrosion resistance
Corrosion resistant alloys
Crystallography
Earth Sciences
Electron backscatter diffraction
Engineering
Environment
Icosahedral phase
Magnesium
Manganese base alloys
Mechanical properties
Metal matrix composites
Morphology
Physics
Properties (attributes)
Quasicrystals
Scanning electron microscopy
Shearing
Silicon
Software
Solids
Symmetry
X-rays
Yield stress
title Synthesis of an Al–Mn-Based Alloy Containing In Situ-Formed Quasicrystals and Evaluation of Its Mechanical and Corrosion Properties
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