Structural transformations of heat treated Co-less high entropy alloys

D. Mitrica, A. Tudor, A. Rinaldi, V. Soare, C. Predescu, A. Berbecaru, F. Stoiciu, V. Badilita

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Co is considered to be one of the main ingredients in superalloys. Co is considered a critical element and its substitution is difficult due to its unique ability to form high temperature stable structures with high mechanical and corrosion/oxidation resistance. High entropy alloys (HEA) represent a relatively new concept in material design. HEA are characterised by a high number of alloying elements, in unusually high proportion. Due to their specific particularities, high entropy alloys tend to form predominant solid solution structures that develop potentially high chemical, physical and mechanical properties. Present paper is studying Co-less high entropy alloys with high potential in severe environment applications. The high entropy alloys based on Al-Cr-Fe-Mn-Ni system were prepared by induction melting and casting under protective atmosphere. The as-cast specimens were heat treated at various temperatures to determine the structure and property behaviour. Samples taken before and after heat treatment were investigated for chemical, physical, structural and mechanical characteristics. Sigma phase composition and heat treatment parameters had major influence over the resulted alloy structure and properties.
Original languageEnglish
DOIs
Publication statusPublished - 26 Mar 2018
Externally publishedYes
EventSymposium on Solutions for Critical Raw Materials Under Extreme Conditions 2017 - Warsaw, Poland
Duration: 26 Mar 2018 → …

Conference

ConferenceSymposium on Solutions for Critical Raw Materials Under Extreme Conditions 2017
CountryPoland
CityWarsaw
Period26/3/18 → …

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

Mitrica, D., Tudor, A., Rinaldi, A., Soare, V., Predescu, C., Berbecaru, A., Stoiciu, F., & Badilita, V. (2018). Structural transformations of heat treated Co-less high entropy alloys. Paper presented at Symposium on Solutions for Critical Raw Materials Under Extreme Conditions 2017, Warsaw, Poland. https://doi.org/10.1088/1757-899X/329/1/012011