Enhanced crevice corrosion of stainless steel 316 by degradation of Cr-containing hollandite crevice former

Xiaolei Guo, Penghui Lei, Chandi Mohanty, Tiankai Yao, Jie Lian, Gerald S. Frankel

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This study explores the corrosion interactions between stainless steel 316 (SS316), a candidate nuclear waste canister material, and Cr-containing hollandite (Ba1.15Cr2.3Ti5.7O16), a model ceramic nuclear waste form. The two materials were corroded in close proximity in 0.6 M NaCl solution at 90 °C for 28 days. Severe crevice corrosion was observed on the stainless steel surface after the corrosion experiment, which is likely associated with the rapid accumulation of Cr3+ cations originating from both SS316 and the Cr-containing hollandite. The enhanced corrosion of SS316 by the corrosion products of hollandite is quantitatively explained using a classical crevice corrosion model.

Original languageEnglish
Article number110462
JournalCorrosion Science
Volume205
Early online dateJun 25 2022
DOIs
StatePublished - Aug 15 2022
Externally publishedYes

Keywords

  • Corrosion interaction
  • Crevice corrosion
  • High level waste
  • Hollandite
  • Nuclear waste form
  • Stainless steel

Fingerprint

Dive into the research topics of 'Enhanced crevice corrosion of stainless steel 316 by degradation of Cr-containing hollandite crevice former'. Together they form a unique fingerprint.

Cite this