Soft Ferromagnetic Bulk Metallic Glass with Potential Self-Healing Ability

A new concept of soft ferromagnetic bulk metallic glass (BMG) with self-healing ability is proposed. The specific [Fe(36)Co(36)B(19.2)Si(4.8)Nb(4)](100−x)(Ga)(x) (x = 0, 0.5, 1 and1.5) BMGs prepared by copper mold casting were investigated as a function of Ga content. The Ga-containing BMGs still ho...

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Detalles Bibliográficos
Autores principales: Ramasamy, Parthiban, Stoica, Mihai, Ababei, Gabriel, Lupu, Nicoleta, Eckert, Jürgen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7143147/
https://www.ncbi.nlm.nih.gov/pubmed/32183279
http://dx.doi.org/10.3390/ma13061319
Descripción
Sumario:A new concept of soft ferromagnetic bulk metallic glass (BMG) with self-healing ability is proposed. The specific [Fe(36)Co(36)B(19.2)Si(4.8)Nb(4)](100−x)(Ga)(x) (x = 0, 0.5, 1 and1.5) BMGs prepared by copper mold casting were investigated as a function of Ga content. The Ga-containing BMGs still hold soft magnetic properties and exhibit large plastic strain of 1.53% in compression. Local melting during shearing produces molten droplets of several µm size throughout the fracture surface. This concept of local melting during shearing can be utilized to produce BMGs with self-healing ability. The molten regions play a vital role in deflecting shear transformation zones, thereby enhancing the mechanical properties.

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