{
  "abstract": "Alloy 625 was oxidized at 900 °C in lab air and in air + 20%vol. H 2 O for 400 h to estimate the microstructural changes experienced by the alloy during exposure at high temperature. The specimen mass loss in air + 20%vol. H 2 O evolved linearly after a very short period of exposure due to the formation of volatile species from the protective Cr 2 O 3 layer. The chromium loss rate was in the order of 5.5 × 10 −7 mg.cm -2 .s -1 (evaluated by direct mass variation measurements) and 7.5 × 10 −7 mg.cm -2 .s -1 (evaluated from Cr-mass balance) in air + 20%vol. H 2 O in the present conditions. Pronounced chemical and microstructural changes were observed in the subsurface for samples exposed in air + 20%vol. H2O. The recession of the alloy interface due to chromium removal was insufficient to explain the pronounced accumulation of δ-Ni 3 (Nb,Mo) phase at the alloy-oxide interface, demonstrating the significant uphill diffusion of Nb. Chemical breakaway on the sample edges involved the oxidation of δ-Ni 3 (Nb,Mo) phase, forming powdery oxides.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "name": "B. Jacquard"
    },
    {
      "name": "S. Mathieu"
    },
    {
      "name": "G. Steciuk"
    },
    {
      "name": "S. Migot"
    },
    {
      "name": "D. Bonina"
    },
    {
      "name": "T. Perez"
    },
    {
      "name": "Enrica Epifano"
    },
    {
      "name": "Daniel Monceau"
    },
    {
      "name": "Aurélie Vande Put"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a4sjq6nc0dp3y.bib",
  "cited_by": 3,
  "doi": "10.1016/j.corsci.2026.113815",
  "fulltext_url": null,
  "id": "a4sjq6nc0dp3y",
  "issns": [
    "0010-938X",
    "1879-0496"
  ],
  "landing_url": "https://hal.science/hal-05836571v1",
  "language": "en",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "1.chim.mate"
    ],
    [
      "openalex",
      "2202|High-Temperature Coating Behaviors"
    ]
  ],
  "openalex": "W7153572570",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-23",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/a4sjq6nc0dp3y.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "hal-05836571",
      "source": "hal",
      "url": "https://hal.science/hal-05836571v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:1.chim.mate",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Subsurface microstructural changes of alloy 625 related to oxidation at 900 °C in lab air and humid air",
  "title_text": "Subsurface microstructural changes of alloy 625 related to oxidation at 900 °C in lab air and humid air",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:01Z",
  "url": "https://research.draconitic.com/paper/a4sjq6nc0dp3y",
  "venue": "Corrosion Science",
  "versions": []
}