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May 17, 2026Journal of Alloys and Compounds0 citationsOpen Access

CAPHAD-Guided Design of Co-Free Medium-Entropy Alloy Coatings

CALPHAD-guided design of a Co-free medium-entropy alloy laser-clad coating

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Authors

EBEcio BosiAMAshok MeghwalRDRegan Ding

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Overview

Randomized trial shows the mechanical performance of Co-free coatings in metal applications, indicating potential cost savings.

Key Points

  • This study aims to develop a cost-effective, Co-free medium-entropy alloy coating with enhanced mechanical properties.
  • Employed CALPHAD simulations to screen for compositions favoring BCC/B2 phase formation.
  • Produced Al 1.2 Cr 0.5 Fe 0.5 Ni MEA via ultrasonic atomization and laser-cladding on stainless steel.
  • Characterized the microstructure and mechanical properties of the laser-clad coating.
  • Coating exhibited high microhardness of 489 ± 9 HV 0.3, comparable to Co-containing alloys.
  • Retained dual-phase BCC/B2 structure confirmed through detailed analysis.
  • Achieved a highly uniform nanohardness due to balanced contributions from BCC and B2 phases.
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Cite This Study

Bosi et al. (2026) studied this question.

synapsesocial.com/papers/6a095a877880e6d24efe07e0https://doi.org/10.1016/j.jallcom.2026.188613
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