Official PDF Translation•Int. Journal of Minerals, Metallurgy and Materials (矿物冶金与材料学报)

Effect of aging precipitation on the stress corrosion cracking behavior of Ni(Fe,Al)-maraging steel

Authors: Xiaodong Wu; Tianliang Zhao; Tingping Hou; Zhongyu Cui; Yan Li; Kaiming Wu

DOI: 10.1007/s12613-024-3062-xStatus: Verified Translated Edition

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Key Findings in This Report

• Aging precipitation enhances martensite matrix strength via Ni(Fe,Al) precipitates, reducing transgranular cracking. • Volta potential difference between matrix and NbC particles increases from 11.43 to 18.60 mV, accelerating anodic dissolution at HAGBs. • SCC susceptibility increases with aging due to combined mechanical and electrochemical effects, promoting intergranular fracture. • Findings guide optimization of aging treatments to balance strength and SCC resistance in maraging steels.