Coupling Effect of Precipitates and Hydrogen on Pitting Corrosion of Stainless Steel-Reference-Cited by-同舟云学术

Coupling Effect of Precipitates and Hydrogen on Pitting Corrosion of Stainless Steel

Published:2024-06-12 Issue:8 Volume:80 Page:818-827
ISSN:0010-9312
Container-title:Corrosion
language:en
Short-container-title:

Author:

Liu Ming¹²,Yao Guanghu²,Wang Xuehan²,Xu Lining¹²^ORCID,Jiao Lang²^ORCID,Su Hang³⁴,Fu Anqing³⁴

Affiliation:

1. *State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China.

2. **Institute for Advanced Materials and Technology, University of Science and Technology Beijing, 100083, China.

3. ***State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC, Xi’an, 710077, China.

4. ****Key Laboratory of Petroleum Tubular Goods and Equipment Quality Safety for State Market Regulation, Xi’an, 710077, China.

Abstract

This study investigated the coupling effect of hydrogen and precipitates on the initiation of pitting using HR3C stainless steel with large NbCrN precipitates as the study material. Stainless steel exhibited good resistance to pitting when not subject to hydrogen charging. Hydrogen charging significantly reduced the corrosion resistance and stability of the passive film. Results obtained using the hydrogen microprint technique revealed that hydrogen was enriched within NbCrN precipitates and along the precipitate/substrate interface. Through immersion experiments, we discovered that pits preferentially initiated at the precipitate/substrate interface because they had weaker corrosion resistance than the precipitates.

Publisher

Association for Materials Protection and Performance (AMPP)

Link

https://meridian.allenpress.com/corrosion/article-pdf/80/8/818/3412208/4549.pdf

Reference33 articles.

1. 4 - Hydrogen Diffusion and Trapping in Metals;Turnbull,2012

2. Promotion of pitting corrosion at hydrogen-enriched α/γ phase boundaries in austenitic stainless steel weld joints

3. Coupling effect of microstructure and hydrogen absorbed during service on pitting corrosion of 321 austenitic stainless steel weld joints

4. Failure analysis and experimental verification on the hydrogen-driven pitting corrosion of heat exchanger tube material

5. Effects of hydrogen on passive film and corrosion of aisi 310 stainless steel