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Determination of 200 degrees C Isothermal Section of Al-Ag-Ga Phase Diagram by Microanalysis, X-ray Diffraction, Hardness and Electrical Conductivity Measurements

Authorized Users Only
2017
Authors
Premović, Milena
Tomović, Milica
Minić, Duško
Manasijević, Dragan
Živković, Dragana
Ćosović, Vladan
Grkovic, Vladan
Đorđevic, Aleksandar
Article (Published version)
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Abstract
Ternary Al-Ag-Ga system at 200 degrees C was experimentally and thermodynamically assessed. Isothermal section was extrapolated using optimized thermodynamic parameters for constitutive binary systems. Microstructure and phase composition of the selected alloy samples were analyzed using light microscopy, scanning electron microscopy combined with energy-dispersive spectrometry and x-ray powder diffraction technique. The obtained experimental results were found to be in a close agreement with the predicted phase equilibria. Hardness and electrical conductivity of the alloy samples from four vertical sections Al-Ag80Ga20, Al-Ag60Ga40, Ag-Al80Ga20 and Ag-Al60Ga40 of the ternary Al-Ag-Ga system at 200 degrees C were experimentally determined using Brinell method and eddy current measurements. Additionally, hardness of the individual phases present in the microstructure of the studied alloy samples was determined using Vickers microhardness test. Based on experimentally obtained results, i...solines of Brinell hardness and electrical conductivity were calculated for the alloys from isothermal section of the ternary Al-Ag-Ga system at 200 degrees C.

Keywords:
electrical properties / hardness / isothermal section at 200 degrees C / microstructure / XRD
Source:
Journal of Materials Engineering and Performance, 2017, 26, 6, 2491-2501
Publisher:
  • Springer, New York
Projects:
  • Advanced multicomponent metal systems and nanostructured materials with diverse functional properties (RS-172037)

DOI: 10.1007/s11665-017-2689-4

ISSN: 1059-9495

WoS: 000402734000006

Scopus: 2-s2.0-85018843991
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/2239
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