Work

Role of dissolved oxygen on the corrosion behavior of 316L stainless steel

Year: 2025

Type: article

Abstract: • Dissolved oxygen exhibited different effects on the corrosion behavior of 316L stainless steel during the different immersion stages. • When the chloride concentration was low, dissolved oxygen aggravated the pitting corrosion of 316L stainless steel as forming larger pits once pit corrosion initiation. • The value of [DO]/[Cl - ] would influence the initiation and development of pitting corrosion. The corrosion behavior of 316L stainless steel in 0.01 mol/L NaCl solutions containing dissolved oxygen of different contents was investigated with electrochemical measurements and surface characterization techniques to provide valuable insights for optimizing the composition design of stainless steel to promote its anti-corrosion ability. Dissolved oxygen exhibited different influences on the corrosion behavior of 316L stainless steel during the different immersion stages. Before the nucleation pits, it benefitted to the re-passive of passive film. Once pitting corrosion initiated, the dominating role of dissolved oxygen became participating in the cathodic reactions. During this process, its competition with chloride would influence the initiation and development of pitting corrosion.

Source: Materials & Design

DOI: 10.1016/j.matdes.2025.115017

Authors: Xue Fang, Yu Fulin, Li Kun

Institution: Shandong Jiaotong University

Language: English

Topic: Hydrogen embrittlement and corrosion behaviors in metals

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,650

Funders: National Science Foundation, Shandong Provincial Finance Department, Science and Technology Support Plan for Youth Innovation of Colleges and Universities of Shandong Province of China