{
  "abstract": "Dissimilar joining of NiTi to Ti-6Al-4V (Ti-64) is limited by brittle Ti2Ni formation and degradation of NiTi functionality. A two-step transient liquid phase (TLP) route was developed in which a refractory NbZrW diffusion barrier converts the incompatible couple into two independently bondable interfaces. The barrier plays a different role for each alloy: a reactive substrate for NiTi, dissolving to form a Ti-rich Ni-Ti-Nb liquid that infiltrates its own grain boundaries and is terminated by selective Ti absorption into the barrier; and an inert substrate for Ti-64, joined through contact melting of a sacrificial Cu foil. Both interfaces are fully dense and free of continuous intermetallic layers. In tension, joints spanning both interfaces began transforming at 350 MPa, exhibited a stress plateau to 2.5 global strain (consistent with stress-induced transformation of the NiTi half of the gauge) and failed beyond the plateau at 380-410 MPa. Five load-unload cycles to 460 MPa showed stable superelastic loops with minor ratcheting. These results demonstrate that a diffusion barrier enables dissimilar TLP joining of otherwise incompatible alloys.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.30117",
  "author_total": 4,
  "authors": [
    {
      "name": "Zhaoxi Cao"
    },
    {
      "name": "Samuel Price"
    },
    {
      "name": "John P. Reidy"
    },
    {
      "name": "Ian McCue"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bvs2zs3gyx0r6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.30117",
  "fulltext_url": null,
  "id": "bvs2zs3gyx0r6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.30117",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.30117",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bvs2zs3gyx0r6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.30117",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.30117"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Two-step transient liquid phase bonding of NiTi to Ti-6Al-4V through a NbZrW barrier",
  "title_text": "Two-step transient liquid phase bonding of NiTi to Ti-6Al-4V through a NbZrW barrier",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/bvs2zs3gyx0r6",
  "venue": "arXiv",
  "versions": []
}