Microstructure evolution and corrosion behavior of the Incoloy 028 alloy upon aging

  • Haoran An
  • , Zhiqiang Yu
  • , Rui Wang
  • , Haoxin An
  • , Yan Kang
  • , Jin Qin
  • , Yuhong Zhao
  • , He An
  • , Yong Hu
  • , Leifeng Tuo
  • , Hongyan Xu
  • , Zhijie Yan
  • , Jürgen Eckert

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study investigates the microstructural evolution, electrochemical behavior, and passive film formation of Incoloy 028 alloy during immersion in simulated oilfield solution. The results show that higher aging temperatures lead to increased precipitate formation, which deteriorates the corrosion resistance. Mott-Schottky analysis indicates that the passive films exhibit both n-type and p-type semiconductor behavior, with decreasing donor and acceptor densities at higher aging temperatures, suggesting improved film stability. XPS analysis reveals that the formation of Cr and Mo compounds enhances film densification.
Original languageEnglish
Article number112634
Number of pages47
JournalCorrosion science
Volume2025
Issue numberVolume 244, March
Early online date13 Dec 2024
DOIs
Publication statusPublished - 1 Mar 2025

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