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Materials Engineering—From Ideas to Practice: An EPD Symposium in Honor of Jiann-Yang Hwang pp 105–112Cite as

Metallographic Feature of a Nickel-Based Superalloy in Fluoride Electrolyte Melt

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Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Application of a long life and low-cost metallic electrode in salt bath heat treatment, all-electric glass smelters, and primary aluminum production has potential advantages, including great energy saving, significant environmental benefits, adequate electric conductivity, high fracture toughness, excellent thermal shock resistance, and ease of fabrication into complex shapes. Nickel-based alloys have been used in a wide variety of severe operating conditions involving corrosive environment, elevated temperature, high stress, and their combinations. To estimate the feasibility of nickel-based superalloy used as an electrode material, the erosion rate of an Inco nickel-based superalloy in a standard fluoride electrolyte melt was investigated. The diffusion speeds of the metals are in a sequence of Cr > Ni > Fe > Mo. The maximum erosion rate of the superalloy in the fluoride at 1000 ℃ is approximately 27 μ per hour in a three hours period.

Keywords

  • Nickel-based superalloy
  • Fluoride
  • Erosion

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Acknowledgements

This research was sponsored by the U.S. Department of Energy (DOE) Award through a contract with Michigan Technological University (DE-FC36-02ID14402).

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Michigan Technological University, 1400 Townsend Dr., Houghton, MI, 49931, USA

    Bowen Li, Xiaodi Huang & Jiann-Yang Hwang

Authors
  1. Bowen Li
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  2. Xiaodi Huang
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  3. Jiann-Yang Hwang
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Corresponding author

Correspondence to Bowen Li .

Editor information

Editors and Affiliations

  1. Michigan Technological University, Houghton, MI, USA

    Dr. Bowen Li

  2. The University of Queensland, Brisbane, Australia

    Prof. Baojun Zhao

  3. CanmetMATERIALS, Hamilton, ON, Canada

    Dr. Jian Li

  4. Military Institute of Engineering, Rio de Janeiro, Brazil

    Prof. Sergio Neves Monteiro

  5. Central South University, Changsha, China

    Dr. Zhiwei Peng

  6. RHI Magnesita, Leoben, Austria

    Dr. Dean Gregurek

  7. Central South University, Changsha, China

    Tao Jiang

  8. Futianbao Environmental Protection Technology Company, Xian, China

    Yong Shi

  9. Futianbao Environmental Protection Technology Company, Xian, China

    Cuiping Huang

  10. Al Isra University, Amman, Jordan

    Dr. Shadia Ikhmayies

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Li, B., Huang, X., Hwang, JY. (2021). Metallographic Feature of a Nickel-Based Superalloy in Fluoride Electrolyte Melt. In: , et al. Materials Engineering—From Ideas to Practice: An EPD Symposium in Honor of Jiann-Yang Hwang. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-65241-8_10

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