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June 7, 2026Advanced Functional Materials0 citations

Dislocation Accommodation in Fe-Al Composites Through Interfacial Heterogeneity

Hierarchical Interfacial Heterogeneity and Plastic Bridging Activate Dislocation Accommodation in Fe‐Al Composites

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Authors

ZDZhijie DingYWYinchen WangPLPeng Li

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Overview

Randomized trial shows enhanced interfacial strength and toughness in Fe-Al composites, indicating improved structural performance.

Key Points

  • This work aims to enhance interfacial bonding and toughness in Fe-Al composites by utilizing hierarchical interfacial heterogeneities.
  • Developed a Fe-Al composite with dislocation-activated interfaces and designed a B2-ordered plastic bridging layer.
  • Architected hierarchical intermetallic compound heterogeneities at the interface.
  • Evaluated interfacial fracture toughness and strength under varying IMC thickness.
  • Achieved interfacial fracture toughness of 22.6 MPa·m 1/2 with an IMC thickness of 19.4 µm.
  • Reported interfacial strength of ∼202.4 MPa, approximately fivefold higher than comparable FACs.
  • Identified a multilevel cooperative strengthening mechanism enhancing load sharing and strain delocalization.

Cite This Study

Ding et al. (2026) studied this question.

synapsesocial.com/papers/6a250baa7def13d035e1bb7fhttps://doi.org/10.1002/adfm.76341
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