{
  "abstract": "Solidification cracking is a critical defect in welding, and its occurrence has conventionally been described using temperature-dependent critical-strain curves. However, whether the critical strain is uniquely determined by temperature remains unclear, particularly at the dendrite scale. In this study, solidification-cracking behavior in an Fe-15Mn-10Cr-8Ni-4Si alloy was investigated using in-situ synchrotron X-ray transmission imaging combined with local strain and temperature analyses. Crack-initiation events were identified from the time-resolved X-ray images, and the corresponding critical equivalent strains and critical temperatures were extracted at individual positions along the crack path. Solidification cracking occurred over approximately 1320-1000°C, corresponding to the effective solid-liquid coexistence region predicted by a Scheil-Gulliver calculation. The median critical strain was higher at lower temperatures and generally decreased toward higher temperatures. A broad critical-strain distribution remained within each 30°C temperature range. After subtraction of the temperature-bin median, the remaining variation was spatially nonuniform along the crack path. Comparison with a non-cracking case showed that most equivalent-strain values remained below the critical-strain distribution obtained in the cracking case, although the upper tail partially overlapped its lower part. These results provide experimental evidence that the critical strain at solidification-crack initiation is better represented as a temperature-dependent distribution than as a single-valued curve. The physical factors governing the distribution width and spatial variation remain to be identified.",
  "abstract_shown": true,
  "affiliations": [
    "Research Center for Structural Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan.",
    "Joining and Welding Research Institute, The University of Osaka, Ibaraki, Osaka, Japan."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Houichi Kitano"
    },
    {
      "affs": [
        0
      ],
      "name": "Tomoya Nagira"
    },
    {
      "affs": [
        0
      ],
      "name": "Fumiyoshi Yoshinaka"
    },
    {
      "affs": [
        0
      ],
      "name": "Takahiro Sawaguchi"
    },
    {
      "affs": [
        1
      ],
      "name": "Takayuki Yamashita"
    },
    {
      "affs": [
        1
      ],
      "name": "Yasuhiro Aoki"
    },
    {
      "affs": [
        1
      ],
      "name": "Hidetoshi Fujii"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0v5x4ms1bdzwe.bib",
  "cited_by": 0,
  "doi": "10.1080/14686996.2026.2736326",
  "fulltext_url": "https://europepmc.org/articles/PMC13686218",
  "id": "0v5x4ms1bdzwe",
  "issns": [
    "1468-6996",
    "1878-5514"
  ],
  "landing_url": "https://europepmc.org/article/MED/42910337",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|Solidification and crystal growth phenomena"
    ]
  ],
  "openalex": "W7221576371",
  "pdf_url": "https://europepmc.org/articles/PMC13686218?pdf=render",
  "pmcid": "PMC13686218",
  "pmid": "42910337",
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0v5x4ms1bdzwe.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:10Z",
      "native_id": "MED:42910337",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42910337"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Solidification and crystal growth phenomena",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Dendrite-scale quantitative evaluation of solidification cracking in welding using in-situ synchrotron X-ray imaging: distribution characteristics of critical strain.",
  "title_text": "Dendrite-scale quantitative evaluation of solidification cracking in welding using in-situ synchrotron X-ray imaging: distribution characteristics of critical strain.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:10Z",
  "url": "https://research.draconitic.com/paper/0v5x4ms1bdzwe",
  "venue": "Science and technology of advanced materials",
  "versions": []
}