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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Multi-Principal Element Alloys V: Mechanical Behavior
Presentation Title Microstructural Study of an Iron-Based High-Entropy Alloy FeMnAlSiCr-C
Author(s) Jose Raul Ortiz-Castillo, Jorge Alejandro Verduzco-Martinez, Juan Manuel Prado-Lazaro, Israel Aguilera-Navarrete
On-Site Speaker (Planned) Jose Raul Ortiz-Castillo
Abstract Scope This study details the design, fabrication, and characterization of a non-equiatomic Iron-based High-Entropy Alloy from the FeMnAlSiCr-C family. The alloy was produced through vacuum induction melting and subsequently characterized in its as-cast state. Analyses were conducted to assess its chemical composition, phase constituents via X-Ray Diffraction, and microstructure as observed through Scanning Electron Microscopy. X-Ray Diffraction results indicated a ferritic matrix (α) alongside an intermetallic iron aluminide phase (FeAl), exhibiting an ordered B2-type simple cubic structure. Scanning Electron Microscopy revealed the presence of complex precipitates enriched in manganese, silicon, and chromium, as well as lamellar structures associated with displacive or eutectoid transformations. In the as-cast condition, the alloy exhibited an average grain size of 213 µm and an average hardness of 474 HV. These findings demonstrate that the alloy's multicomponent composition and meticulous processing techniques contribute to the formation of intricate microstructures with enhanced mechanical properties.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Characterization, Other

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Accurate Determination of the Deformation Mechanisms in Refractory Compositionally Complex Alloys
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Additive Manufacturing: From Complex Alloys to Simple Alloys
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Atomic-level defects on dislocation lines and their role in refractory complex alloy strength
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CALPHAD-Guided Development and Mechanical Evaluation of Dual-Phase CoFeNiVTi Alloys
Combinatorial microstructure & stoichiometry-based and hybrid machine learning & domain knowledge for hardness mapping in a high-entropy alloy
Comparison of NbxMo1-x and (VNbTa)xMo1-x Refractory MPEA Thin Films by In Situ Microcantilever Beam Bending
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Dislocation Analysis of CrCoNi using Micropillar Experiments and Molecular Dynamics Simulations
Dislocation Properties in Refractory Compositionally Complex Alloys
Dry Sliding Wear of Cu-Alloyed Low-Carbon Steels: Role of Oxides and Quenching Temperature
Ductile-Brittle Transitions in bcc Refractory High-Entropy Alloys
Dynamic properties of NbTaTiHf High-Entropy Alloy
EBSD analysis of microstructure evolution in hot-deformed WMoFeNi MPEA Alloy system
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Examining the influence of multiphase evolution and elemental partitioning on mechanical behavior in Nb-V-Zr alloys
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Experimental Study of Corrosion, Wear and Biocompatibility Behavior of Novel Senkov-Derivative Refractory High-Entropy Alloys
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