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Journal of Thermal Analysis and Calorimetry

, Volume 134, Issue 3, pp 1749–1755 | Cite as

Thermodynamic characterization of aluminium corner of Al–Cu system with various Nd additions

  • Maja VončinaEmail author
  • Darja Volšak
  • Mitja Petrič
  • Jožef Medved
Article
  • 56 Downloads

Abstract

The effect of various neodymium additions on the characteristic solidification temperatures and on the microstructure development of the laboratory-prepared binary alloy AlCu5.5 was investigated. The aluminium corner of ternary system Al–Cu with various Nd additions was investigated using thermal analysis, differential scanning calorimetry and optical and scanning electron microscopy. The presence of Nd phases was confirmed using X-ray diffractometer. Microhardness of α-Al in AlCu5.5 alloy containing various Nd additions was analysed. The results show that the addition of neodymium raises eutectic (α-Al + Al2Cu) solidification temperature and solidus temperature, which leads to a narrower solidification interval. It was also confirmed that Nd formed two binary eutectics (α-Al + Al2Cu(Nd)) and (α-Al + Al8Cu4Nd). The addition of Nd also caused the increase in microhardness of α-Al phase.

Keywords

AlCu5.5 alloy Nd addition Thermodynamics Thermal analysis Microstructure 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Maja Vončina
    • 1
    Email author
  • Darja Volšak
    • 2
  • Mitja Petrič
    • 1
  • Jožef Medved
    • 1
  1. 1.Department of Materials and Metallurgy, Faculty of Natural Sciences and EngineeringUniversity of LjubljanaLjubljanaSlovenia
  2. 2.IMPOL d.d.Slovenska BistricaSlovenia

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