{
  "abstract": "Lightweight, high-strength structural materials are component enablers in transportation and aerospace, reducing carbon footprints and enhancing fuel efficiency. Cast aluminium alloys, mainly based on eutectic compositions, make up ~85% of these materials but often fail catastrophically due to inefficient load transfer across the interfaces between the brittle eutectic phase and the ductile matrix. Here, we discovered that promoting a superlattice nano-layer (SNL) around the eutectic fibres, achieved by adding Zr to an Al-Gd near-eutectic alloy, enables excellent load transfer capabilities, resulting in a ~400% increase in tensile ductility. The primary α-Al matrix also contains a high number density of superlattice core-shell nanoparticles. This exceptional increase in formability is attributed to the ability of the SNL to prevent dislocations from accumulating at the weak fibre/matrix interfaces, thereby avoiding stress concentrations that would otherwise initiate fibre breakage and debonding. The coreshell nano-particles in α-Al cause a large number of dislocation cross/multiple-slips on {111} planes, forming ultra-fine (⁓ 12 nm) dislocation networks that leverage substantial plastic strain accumulation. This atomic interface design overcomes the ductility limitations of cast-eutectic alloys, enabling them for structural applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "name": "Hemant Kumar"
    },
    {
      "name": "Praveen Kumar"
    },
    {
      "name": "Dierk Raabe"
    },
    {
      "name": "Baptiste Gault"
    },
    {
      "name": "Surendra Kumar Makineni"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3gx0d84gr7qxm.bib",
  "cited_by": 1,
  "doi": "10.1038/s41467-026-74748-9",
  "fulltext_url": null,
  "id": "3gx0d84gr7qxm",
  "issns": [
    "2041-1723",
    "2041-1723"
  ],
  "landing_url": "https://hal.science/hal-05761950v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.cond"
    ],
    [
      "hal",
      "2.phys.cond.cm-ms"
    ],
    [
      "openalex",
      "2202|Aluminum Alloy Microstructure Properties"
    ]
  ],
  "openalex": "W7165629018",
  "pdf_url": "https://hal.science/hal-05761950/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-24",
  "publisher": "Nature Publishing Group",
  "ris": "https://research.draconitic.com/paper/3gx0d84gr7qxm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:40Z",
      "native_id": "hal-05761950",
      "source": "hal",
      "url": "https://hal.science/hal-05761950v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:1.phys.cond",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Strength-ductility synergy in lightweight aluminium alloys with nano-layered fibres and core-shell nano-particles",
  "title_text": "Strength-ductility synergy in lightweight aluminium alloys with nano-layered fibres and core-shell nano-particles",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:40Z",
  "url": "https://research.draconitic.com/paper/3gx0d84gr7qxm",
  "venue": "Nature Communications",
  "versions": []
}