{
  "abstract": "Mechanistic corrosion models are routinely fitted with four to six parameters to a few measurements and extrapolated across service lifetimes, yet whether the data determine them is rarely tested. We identify a reduced point defect model for the duplex oxide on Nb-stabilized AISI 347 in simulated boiling-water-reactor water from published depth profiles at three exposure times, by differentiable inversion graded against a closed-form reference. Profile likelihood, a 1000-member bootstrap and a prior-relaxation test agree that one of the five parameters is undetermined and a second only weakly so, and that 95% of the fit statistic rests on three chromium points. The kinetics track an empirical power law over the calibration window but diverge from it by a factor of 3.5 to 6.3 at ten years, outside the propagated uncertainty band. That separation, not the thickness it brackets, is what these data determine; an exposure near 3000 hours would resolve it.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.11869",
  "author_total": 1,
  "authors": [
    {
      "name": "Conrard Giresse Tetsassi Feugmo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6njrq75bewgqq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.11869",
  "fulltext_url": null,
  "id": "6njrq75bewgqq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.11869",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "2506|Hydrogen embrittlement and corrosion behaviors in metals"
    ]
  ],
  "openalex": "W7212248935",
  "pdf_url": "https://arxiv.org/pdf/2609.11869",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6njrq75bewgqq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:26Z",
      "native_id": "2609.11869",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.11869"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Sparse data limit what a mechanistic corrosion model can predict",
  "title_text": "Sparse data limit what a mechanistic corrosion model can predict",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:26Z",
  "url": "https://research.draconitic.com/paper/6njrq75bewgqq",
  "venue": "arXiv",
  "versions": []
}