{
  "abstract": "A high-throughput investigation has been conducted on two Al-Zn-Mg-Cu alloys with a different dispersoid population (Cr or Zr based) to study the influence of quenching rate on precipitation kinetics. We developed a modified Jominy specimen to vary the quench rate down to 1 K.s -1 . Across the obtained continuous range of quench rates, microstructure was evaluated using space and time-resolved small-angle X-ray scattering (SAXS), allowing to map the post-quench precipitation kinetics as a function of quench rate. Transmission electron microscopy revealed that Cr-containing dispersoids systematically trigger heterogeneous η-phase precipitation, while Zr-containing dispersoids remain inactive unless recrystallization induces loss of coherency. A critical cooling rate of 30 K.s -1 has been identified from the SAXS data, below which large precipitation-free zones develop and the volume fraction of strengthening precipitates decreases. These quench-induced precipitates modify the precipitation kinetics during natural and artificial ageing, both in terms of volume fraction, average size and precipitate size distribution. The resulting loss of hardness scales at first order with the square root of the precipitate volume fraction, indicating that the reduction in the fraction of homogeneous precipitates dominates over changes in size or spatial distribution.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "name": "Thomas Pejot"
    },
    {
      "name": "Thomas Perrin"
    },
    {
      "name": "Frédéric De Geuser"
    },
    {
      "name": "Julien Barlier"
    },
    {
      "name": "Alexis Deschamps"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/acrvpz0pmc3ve.bib",
  "cited_by": 0,
  "doi": "10.1016/j.matdes.2026.116579",
  "fulltext_url": null,
  "id": "acrvpz0pmc3ve",
  "issns": [
    "0261-3069",
    "0264-1275"
  ],
  "landing_url": "https://hal.science/hal-05763336v1",
  "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",
      "0.spi"
    ],
    [
      "hal",
      "1.phys.cond"
    ],
    [
      "hal",
      "1.spi.mat"
    ],
    [
      "hal",
      "2.phys.cond.cm-ms"
    ],
    [
      "openalex",
      "2202|Aluminum Alloy Microstructure Properties"
    ]
  ],
  "openalex": "W7167934406",
  "pdf_url": "https://hal.science/hal-05763336/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-10",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/acrvpz0pmc3ve.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:40Z",
      "native_id": "hal-05763336",
      "source": "hal",
      "url": "https://hal.science/hal-05763336v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:1.phys.cond",
      "subfield": "condensed-matter"
    }
  ],
  "title": "High-throughput characterization of the effect of quenching rate and dispersoid type on precipitation kinetics in two Al-Zn-Mg-Cu alloys",
  "title_text": "High-throughput characterization of the effect of quenching rate and dispersoid type on precipitation kinetics in two Al-Zn-Mg-Cu alloys",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:40Z",
  "url": "https://research.draconitic.com/paper/acrvpz0pmc3ve",
  "venue": "Materials & Design",
  "versions": []
}