稀Mg-Zn-Ca合金的桥接静态腐蚀行为及应力腐蚀开裂敏感性

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-04-09 DOI:10.1016/j.corsci.2025.112924

Xun Zhang , Dawei Wang , Fuyong Cao , Cheng Wang , Min Zha

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引用次数: 0

摘要

在ZX10-xSn（0 ≤x ≤ 2）合金中架起了腐蚀行为与应力腐蚀开裂（SCC）之间的桥梁关系。其中，严重的局部腐蚀是裂纹的起裂源，导致膜破裂和氢气积聚，导致SCC的敏感性指数（ISCC）很高。在5种合金中，ZX10-1.5Sn具有最低的ISCC，预浸试样的εf为~ 2 %，浸浸试样的εf为~ 63 %，这是由于其腐蚀均匀所致。εf的显著差异表明，由于外力而不是腐蚀产物导致的氢渗透增强，在力学性能恶化中起着更关键的作用。

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

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.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.