Transformation of the metastable Al$_6$Fe intermetallic phase during homogenization of a binary Al-Fe alloy
ID Arbeiter, Jože (Author), ID Vončina, Maja (Author), ID Šetina, Barbara (Author), ID Medved, Jože (Author)

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Within the scope of this research the transformation of the Al$_6$Fe metastable phase was analyzed via Differential Scanning Calorimetry (DSC), optical and Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). A binary Al-Fe1.1 low-impurity alloy was produced with refined raw materials in a controlled environment. With a cooling rate of 35 K/s, solidification of the Al$_6$Fe metastable phase was achieved. The samples were homogenized at 600 °C for 2–24 h. Results of a qualitative analysis of metallographic samples show that the transformation began on grain boundaries, forming an Fe-phase free region, but after 2 h began to take place within the eutectic region. The transformation is mostly complete after 12 h, but after 24 h of homogenization it is fully complete as all samples, except the 24 h homogenized one, contain both the metastable Al$_6$Fe and the stable Al$_{13}$Fe$_4$ phase.

Keywords:homogenization, aluminum alloys, phase transformation, differential scanning calorimetry
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:NTF - Faculty of Natural Sciences and Engineering
Publication status:Published
Publication version:Version of Record
Number of pages:9 str.
Numbering:Vol. 14, iss. 23, art. 7208
PID:20.500.12556/RUL-136703 This link opens in a new window
ISSN on article:1996-1944
DOI:10.3390/ma14237208 This link opens in a new window
COBISS.SI-ID:86912003 This link opens in a new window
Publication date in RUL:17.05.2022
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Shortened title:Materials
Publisher:Molecular Diversity Preservation International
COBISS.SI-ID:33588485 This link opens in a new window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.12.2021


Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Funding programme:Young researchers

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