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Characterisation of a Novel Complex Concentrated Alloy for Marine Applications

Complex concentrated alloys (CCAs) are a new family of materials with near equimolar compositions that fluctuate depending on the characteristics and destination of the material. CCAs expand the compositional limits of the traditional alloys, displaying new pathways in material design. A novel light...

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Detalles Bibliográficos
Autores principales: Badea, Ioana-Cristina, Csaki, Ioana, Serban, Beatrice-Adriana, Constantin, Nicolae, Mitrica, Dumitru, Burada, Marian, Anasiei, Ioana, Olaru, Mihai Tudor, Ghita, Andreea-Nicoleta, Popescu, Ana-Maria Julieta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102090/
https://www.ncbi.nlm.nih.gov/pubmed/35591677
http://dx.doi.org/10.3390/ma15093345
Descripción
Sumario:Complex concentrated alloys (CCAs) are a new family of materials with near equimolar compositions that fluctuate depending on the characteristics and destination of the material. CCAs expand the compositional limits of the traditional alloys, displaying new pathways in material design. A novel light density Al(5)Cu(0.5)Si(0.2)Zn(1.5)Mg(0.2) alloy was studied to determine the structural particularities and related properties. The alloy was prepared in an induction furnace and then annealed under a protective atmosphere. The resulted specimens were analysed by chemical, structural, mechanical, and corrosion resistance. The structural analyses revealed a predominant FCC and BCC solid solution structure. The alloy produced a compression strength of 500–600 MPa, comparable with conventional aluminium alloys. The corrosion resistance in 3.5% NaCl solution was 0.3424 mm/year for as-cast and 0.1972 mm/year for heat-treated alloy, superior to steel, making the alloy a good candidate for marine applications.