{
  "abstract": "Phase-field models resolve microstructural evolution during rapid alloy solidification, but their computational cost limits long trajectories, stochastic ensembles, and studies across process conditions. We present a variance-preserving denoising diffusion bridge model (VP-DDBM) for state-conditioned prediction of two-dimensional Al-Cu solidification. Given the current phase, concentration, and prescribed temperature fields, the model predicts the subsequent state and is applied autoregressively. Across two held-out thermal gradients, VP-DDBM produces lower long-horizon errors than deterministic U-Net and SI-ConvNeXt baselines in domain-mean phase, domain-mean Cu concentration, and leading-tip position. It also retains fine dendritic structure over long rollouts, whereas the deterministic U-Net progressively smooths the morphology. VP-DDBM predicts the phase and concentration evolution approximately $73\\times$ faster than the phase-field solver, showing potential for faster process-condition screening and ensemble-based microstructure studies.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.04695",
  "author_total": 2,
  "authors": [
    {
      "name": "Simon Savukoski"
    },
    {
      "name": "Tatu Pinomaa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2vkmkvhhfkd47.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.04695",
  "fulltext_url": null,
  "id": "2vkmkvhhfkd47",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.04695",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "cs.LG"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.04695",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2vkmkvhhfkd47.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.04695",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.04695"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Surrogate Models for Stochastic Al-Cu Phase-Field Solidification",
  "title_text": "Surrogate Models for Stochastic Al-Cu Phase-Field Solidification",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/2vkmkvhhfkd47",
  "venue": "arXiv",
  "versions": []
}