Abstract:
:We study the change in magnetisation with paramagnetic Al addition in the CoFeNi0.5Cr0.5-Alx (x: 0, 0.5, 1, and 1.5) complex concentrated alloy. The compositions were developed utilising the Mulliken electronegativity and d-electron/atom ratio. Spherical FeCr rich nanoprecipitates are observed for X: 1.0 and 1.5 in an AlCoNi-rich matrix. A ~ 5 × increase in magnetisation (from 22 to 96 Am2/kg) coincides with this nanoprecipitate formation-the main magnetic contribution is determined to be from FeCr nanoprecipitates. The magnetisation increase is strange as paramagnetic Al addition dilutes the ferromagnetic Fe/Co/Ni additions. In this paper we discuss the magnetic and structural characterisation of the CoFeNi0.5Cr0.5-Alx composition and attempt to relate it to the interfacial energy.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Morley NA,Lim B,Xi J,Quintana-Nedelcos A,Leong Zdoi
10.1038/s41598-020-71463-3subject
Has Abstractpub_date
2020-09-02 00:00:00pages
14506issue
1issn
2045-2322pii
10.1038/s41598-020-71463-3journal_volume
10pub_type
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