Bridging static corrosion behavior and stress corrosion cracking susceptibility in dilute Mg-Zn-Ca alloys

作者：Xun Zhang, Dawei Wang, Fuyong Cao, Cheng Wang, Min Zha · 发表于：Corrosion Science · 年份：2025 · DOI：10.1016/j.corsci.2025.112924 · 被引用次数：8 · 研究领域：Magnesium Alloys: Properties and Applications、Corrosion Behavior and Inhibition、Metal and Thin Film Mechanics

The relationship between corrosion behavior and stress corrosion cracking (SCC) is bridged in ZX10-xSn (0 ≤ x ≤ 2) alloys. Specifically, severe localized corrosion serves as a crack initiation source and causes film rupture and hydrogen accumulation, resulting in high susceptibility index of SCC ( I SCC ). Among the five alloys, ZX10–1.5Sn boasts the lowest I SCC , with an I εf of ∼2 % for pre-immersed samples and ∼63 % for immersed samples, owning to its uniform corrosion . This significant difference in I εf suggests that enhanced hydrogen penetration due to external forces, rather than the corrosion products , plays a more critical role in deteriorating mechanical properties.