Fabricating CoCrFeMnNi high entropy alloy via selective laser melting in-situ alloying

Peng Chen, Sheng Li, Yinghao Zhou, Ming Yan*, Moataz M. Attallah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Quasi-equiatomic CoCrFeMnNi high entropy alloy (HEA) has been in-situ alloyed by selective laser melting (SLM) from a blend of CoCrFeNi pre-alloyed powder and Mn elemental powder. The blended powder shows good printability with various SLM parameters and the as-built HEA samples achieve a reliable forming quality. Despite the slight evaporation of Mn, energy dispersive spectrometer mapping and X-ray diffraction results show that the as-built HEA has a homogeneous chemical distribution and presents a single face-centred-cubic (fcc) phase, indicating successful in-situ alloying. The study has verified the feasibility of using blended powder to prepare high-quality HEA by SLM.

Original languageEnglish
Pages (from-to)40-43
Number of pages4
JournalJournal of Materials Science and Technology
Publication statusPublished - 15 Apr 2020


  • CoCrFeMnNi
  • Crystal structure
  • High entropy alloys
  • In-situ alloying
  • Laser processing
  • Selective laser melting

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Metals and Alloys
  • Materials Chemistry


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