Work

Role of N alloying in modifying rust layer characteristics and enhancing atmospheric corrosion resistance of high-Mn austenitic steel

Year: 2025

Type: article

Abstract: The corrosion behavior and rust layer structure of two high-Mn austenitic steels (Fe−18.5Mn−7Cr−0.6C and Fe−18.5Mn−7Cr−0.6C−0.2N) were investigated in a simulated industrial atmosphere. N alloying improved the corrosion resistance, primarily through microstructural modifications in the rust layer structure. N alloying enhanced Cr enrichment (mainly as Cr 2 O 3 ) in the inner rust layer, resulting in greater thickness and compactness. Additionally, N alloying refined the α-FeOOH grains and increased the α-FeOOH/γ-FeOOH ratio, improving the protective properties of the outer rust layer.

Source: Journal of Materials Research and Technology

DOI: 10.1016/j.jmrt.2025.10.012

Authors: Xiaohong Hao, Haolong Wang, Tianbao Pang, Gongjun Zhang, Fucheng Zhang, Yuefeng Wang, Tiansheng Wang, Peiling Ke

Institutions: Chinese Academy of Sciences, Yanshan University, Ningbo Institute of Industrial Technology, State Key Laboratory of Metastable Materials Science and Technology, North China University of Science and Technology

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: $1,640

OpenAlex ID: W4414919976

FWCI: 0.866

Cites: 57

Cited by: 4

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