{
  "abstract": "This study aimed to clarify how the laser powder bed fusion (LPBF) process modifies the cavitation erosion-corrosion (CE-corrosion) behaviour of NiTi alloys in a 3.5 wt% NaCl solution, through a systematic comparison with an as-cast NiTi counterpart. Ultrasonic CE-corrosion mass-loss tests, potentiodynamic and potentiostatic polarisation, Mott-Schottky analysis, and X-ray photoelectron spectroscopy were combined to correlate microstructure, passive-film properties, and damage evolution. After 20 h of CE, the cumulative mass loss of the LPBF NiTi alloy reached 5.65 mg, approximately 2.57 times that of the as-cast alloy (2.20 mg), and its steady-state mass-loss rate (∼0.28 mg·h⁻¹) was about 2.6 times that of the as-cast alloy (∼0.11 mg·h⁻¹). Rapid solidification generated a metastable B19' martensitic phase and a high density of process-induced defects in the LPBF alloy. Its passive film contained a higher fraction of low-valence oxides (TiO) and exhibited a higher donor density than that of the as-cast alloy, indicating a less protective barrier layer. Failure mechanism analysis revealed that microgalvanic corrosion and stress acted synergistically to accelerate passive-film rupture and substrate damage in the LPBF alloy. These findings establish the relationships among microstructure, passive-film characteristics, electrochemical behaviour, and CE resistance, thereby providing an experimental and mechanistic basis for enhancing the marine-service performance of LPBF NiTi alloys.",
  "abstract_shown": true,
  "affiliations": [
    "School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.",
    "School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China. Electronic address: zhouhl@edu.cn.",
    "Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. Electronic address: lmzhang14s@imr.ac.cn.",
    "Navy Submarine Academy, Qingdao 260199, China.",
    "Navy Submarine Academy, Qingdao 260199, China. Electronic address: 263342066@qq.com."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Ruoyu Fei"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhou Yang"
    },
    {
      "affs": [
        1
      ],
      "name": "Huiling Zhou"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiang Cai"
    },
    {
      "affs": [
        2
      ],
      "name": "Lianmin Zhang"
    },
    {
      "affs": [
        0
      ],
      "name": "Lanlan Yang"
    },
    {
      "affs": [
        3
      ],
      "name": "Feng Xiao"
    },
    {
      "affs": [
        4
      ],
      "name": "Qichao Zhang"
    },
    {
      "affs": [
        0
      ],
      "name": "Yanxin Qiao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/16vp3j0629geh.bib",
  "cited_by": 0,
  "doi": "10.1016/j.ultsonch.2026.108122",
  "fulltext_url": "https://europepmc.org/articles/PMC13691206",
  "id": "16vp3j0629geh",
  "issns": [
    "1350-4177",
    "1873-2828"
  ],
  "landing_url": "https://europepmc.org/article/MED/42896427",
  "language": "eng",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|Metallurgy and Material Science"
    ]
  ],
  "openalex": "W7222846681",
  "pdf_url": "https://europepmc.org/articles/PMC13691206?pdf=render",
  "pmcid": "PMC13691206",
  "pmid": "42896427",
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/16vp3j0629geh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:33Z",
      "native_id": "MED:42896427",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42896427"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Metallurgy and Material Science",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Cavitation erosion-corrosion properties of as-cast NiTi and LPBF NiTi in 3.5 wt% NaCl solution: A comparison investigation.",
  "title_text": "Cavitation erosion-corrosion properties of as-cast NiTi and LPBF NiTi in 3.5 wt% NaCl solution: A comparison investigation.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:33Z",
  "url": "https://research.draconitic.com/paper/16vp3j0629geh",
  "venue": "Ultrasonics sonochemistry",
  "versions": []
}