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Additively manufactured and surface textured Mg containing high entropy alloys for biomedical applications
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DOI：10.1016/j.jma.2026.102159.png)
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Abstract
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• High entropy alloys (HEAs) are highly promising for biomedical applications due to exceptional properties such as high strength, wear resistance, and corrosion resistance. • Manufacturing and Composition Challenges were discussed. Key limitations include complex phase formation, difficulty in achieving precise compositions, and challenges in large-scale manufacturing. • Additive Manufacturing & Surface Texturing effects were reviewed. • Next-Generation Potential & Future Research was summarized. Additively manufactured and surface-textured Mg-based HEAs offer great potential for next-generation biomedical devices, necessitating future work in advanced modeling and process optimization.
Keywords:
Mg-containing high-entropy alloys
HEAs
Additive manufacturing
Surface texturing
Biomedical applications
Biodegradable metals
Process-microstructure-property relationships
HEA
High-Entropy Alloy
HEM
High-Entropy Material
HEC
High-Entropy Ceramic
HEEM
High-Entropy Energy Material
MPEA
Multi-Principal Element Alloy
CCA
Complex Concentrated Alloy
AM
Additive Manufacturing
PBF
Powder Bed Fusion
DED
Directed Energy Deposition
DLD
Direct Laser Deposition
LMD
Laser Metal Deposition
DMD
Direct Metal Deposition
LENS
Laser Engineered Net Shaping
SLM
Selective Laser Melting
SEBM
Selective Electron Beam Melting
LST
Laser Surface Texturing
ECM
Extracellular Matrix
CALPHAD
Calculation of Phase Diagrams
FCC
Face-Centered Cubic
BCC
Body-Centered Cubic
HCP
Hexagonal Close-Packed
CSRO
Chemical Short-Range Ordering
LPSO
Long Period Stacking Order
SEM
Scanning Electron Microscopy
EDS
Energy Dispersive Spectroscopy
EBSD
Electron Backscatter Diffraction
TEM
Transmission Electron Microscopy
SAED
Selected Area Electron Diffraction
XRD
X-ray Diffraction
VEC
Valence Electron Concentration
ΔH
Mixing Enthalpy
ΔS/R
Configurational Entropy (normalized by gas constant)
Ω
Thermodynamic Stability Parameter
δ
Atomic Size Difference
Δχ
Electronegativity Difference
Tm
Melting Temperature
ΔS_conf
Configurational Entropy
SFE
Stacking Fault Energy
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