IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v15y2024i1d10.1038_s41467-024-45120-6.html
   My bibliography  Save this article

Critical role of slags in pitting corrosion of additively manufactured stainless steel in simulated seawater

Author

Listed:
  • Shohini Sen-Britain

    (Lawrence Livermore National Laboratory)

  • Seongkoo Cho

    (Lawrence Livermore National Laboratory)

  • ShinYoung Kang

    (Lawrence Livermore National Laboratory)

  • Zhen Qi

    (Lawrence Livermore National Laboratory)

  • Saad Khairallah

    (Lawrence Livermore National Laboratory)

  • Debra Rosas

    (Lawrence Livermore National Laboratory)

  • Vanna Som

    (Lawrence Livermore National Laboratory)

  • Tian T. Li

    (Lawrence Livermore National Laboratory)

  • S. Roger Qiu

    (Lawrence Livermore National Laboratory)

  • Y. Morris Wang

    (University of California Los Angeles)

  • Brandon C. Wood

    (Lawrence Livermore National Laboratory)

  • Thomas Voisin

    (Lawrence Livermore National Laboratory)

Abstract

Pitting corrosion in seawater is one of the most difficult forms of corrosion to identify and control. A workhorse material for marine applications, 316L stainless steel (316L SS) is known to balance resistance to pitting with good mechanical properties. The advent of additive manufacturing (AM), particularly laser powder bed fusion (LPBF), has prompted numerous microstructural and mechanical investigations of LPBF 316L SS; however, the origins of pitting corrosion on as-built surfaces is unknown, despite their utmost importance for certification of LPBF 316L SS prior to fielding. Here, we show that Mn-rich silicate slags are responsible for pitting of the as-built LPBF material in sodium chloride due to their introduction of deleterious defects such as cracks or surface oxide heterogeneities. In addition, we explain how slags are formed in the liquid metal and deposited at the as-built surfaces using high-fidelity melt pool simulations. Our work uncovers how LPBF changes surface oxides due to rapid solidification and high-temperature oxidation, leading to fundamentally different pitting corrosion mechanisms.

Suggested Citation

  • Shohini Sen-Britain & Seongkoo Cho & ShinYoung Kang & Zhen Qi & Saad Khairallah & Debra Rosas & Vanna Som & Tian T. Li & S. Roger Qiu & Y. Morris Wang & Brandon C. Wood & Thomas Voisin, 2024. "Critical role of slags in pitting corrosion of additively manufactured stainless steel in simulated seawater," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45120-6
    DOI: 10.1038/s41467-024-45120-6
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-024-45120-6
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-024-45120-6?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Mary P. Ryan & David E. Williams & Richard J. Chater & Bernie M. Hutton & David S. McPhail, 2002. "Why stainless steel corrodes," Nature, Nature, vol. 415(6873), pages 770-774, February.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Chengbin Jin & Yiyu Huang & Lanhang Li & Guoying Wei & Hongyan Li & Qiyao Shang & Zhijin Ju & Gongxun Lu & Jiale Zheng & Ouwei Sheng & Xinyong Tao, 2023. "A corrosion inhibiting layer to tackle the irreversible lithium loss in lithium metal batteries," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Shucai Zhang & Hao Feng & Huabing Li & Zhouhua Jiang & Tao Zhang & Hongchun Zhu & Yue Lin & Wei Zhang & Guoping Li, 2023. "Design for improving corrosion resistance of duplex stainless steels by wrapping inclusions with niobium armour," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Yang Yang & Weiyue Zhou & Sheng Yin & Sarah Y. Wang & Qin Yu & Matthew J. Olszta & Ya-Qian Zhang & Steven E. Zeltmann & Mingda Li & Miaomiao Jin & Daniel K. Schreiber & Jim Ciston & M. C. Scott & John, 2023. "One dimensional wormhole corrosion in metals," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Ramaraj Sukanya & Tara N. Barwa & Yiran Luo & Eithne Dempsey & Carmel B. Breslin, 2022. "Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys," Sustainability, MDPI, vol. 14(7), pages 1-28, March.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45120-6. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.