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Small-Scale Plastic Deformation of Nanocrystalline High Entropy Alloy.
Mridha, Sanghita; Komarasamy, Mageshwari; Bhowmick, Sanjit; Mishra, Rajiv S; Mukherjee, Sundeep.
Affiliation
  • Mridha S; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA.
  • Komarasamy M; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA.
  • Bhowmick S; Bruker Nano Surfaces, Minneapolis, MN 55344, USA.
  • Mishra RS; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA.
  • Mukherjee S; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA.
Entropy (Basel) ; 20(11)2018 Nov 20.
Article in En | MEDLINE | ID: mdl-33266613
ABSTRACT
High entropy alloys (HEAs) have attracted widespread interest due to their unique properties at many different length-scales. Here, we report the fabrication of nanocrystalline (NC) Al0.1CoCrFeNi high entropy alloy and subsequent small-scale plastic deformation behavior via nano-pillar compression tests. Exceptional strength was realized for the NC HEA compared to pure Ni of similar grain sizes. Grain boundary mediated deformation mechanisms led to high strain rate sensitivity of flow stress in the nanocrystalline HEA.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Entropy (Basel) Year: 2018 Document type: Article Affiliation country: United States
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Entropy (Basel) Year: 2018 Document type: Article Affiliation country: United States