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Corrosion behaviour of aluminide coatings on Ti-based alloy in the marine environment at high temperature

  • Mingming Zhang
  • , Yu Liang
  • , Min Feng
  • , Chengyang Jiang*
  • , Yaqi Zhang
  • , Yahui Wang
  • , Yipeng Feng
  • , Lijie Ma
  • , Fuhui Wang
  • *Corresponding author for this work
  • Henan Institute of Science and Technology
  • Northeastern University China
  • Beihang Hangzhou Innovation Institute Yuhang
  • Xixi Octagon City

Research output: Contribution to journalArticlepeer-review

Abstract

Ni-Al aluminide coating was deposited by electroplating of Ni and subsequent aluminisation while Ti-Al aluminide coating was deposited by aluminisation directly on Ti-based alloy. The corrosion performance of two coated samples with uncoated sample in marine environment in the presence of NaCl and water vapour at 700 °C were studied. Ni-Al coated sample showed the best corrosion resistance. Ti-Al coated sample showed severer corrosion in marine environment compared with that in static air due to self-sustainable oxychlorination process. The detrimental effect of Ti and beneficial effect of Ni-plating on self-sustainable oxychlorination in marine environment are discussed.

Original languageEnglish
Article number110750
JournalCorrosion Science
Volume209
DOIs
StatePublished - Dec 2022
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 14 - Life Below Water
    SDG 14 Life Below Water

Keywords

  • Chlorination
  • Diffusion coating
  • High temperature corrosion
  • Nickel
  • Ti-based alloy

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