此外，通过微量元素优化Mg-6Gd-3Y-0.5Zr合金的耐蚀强度协同效应

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

Corrosion Science Pub Date : 2025-05-23 DOI:10.1016/j.corsci.2025.113058

Duo Wang , Yi Zhang , Peng Zhou , Lv Xiao , Lixiang Yang , Weiyi Yang , Jingjing Nie , Tao Zhang , Fuhui Wang

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引用次数: 0

摘要

基于溶解-电离-扩散-沉积（DIDD）模型，成功设计了具有优异耐蚀性和机械强度的Mg-6Gd-3Y-0.5Zr-0.5In （VW63-0.5In）合金。微量In的加入可显著提高其耐蚀性。T6和T5 VW63-0.5In合金的腐蚀速率分别为0.17 ± 0.05 mm/a和0.08 ± 0.01 mm/a，这是由于多级形核和向下放大效应形成了致密的多层腐蚀产物膜。VW63合金的机械强度不受In合金化的影响。T6和T5合金的屈服强度分别为205.35 ± 2.63 MPa和320.77 ± 1.70 MPa。其优异的机械强度可归因于纳米级β′相的析出。

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Optimizing the corrosion resistance-strength synergy of Mg-6Gd-3Y-0.5Zr alloy via trace In addition

A Mg-6Gd-3Y-0.5Zr-0.5In (VW63–0.5In) alloy with exceptional corrosion resistance and mechanical strength was successfully designed based on the dissolution-ionization-diffusion-deposition (DIDD) model. The trace addition of In could markedly improve its corrosion resistance. The corrosion rates of T6 and T5 VW63–0.5In alloys were 0.17 ± 0.05 mm/a and 0.08 ± 0.01 mm/a, respectively, due to the formation of a dense multi-layer corrosion product film by multi-stage nucleation and downward-magnifying effect. The mechanical strength of VW63 alloy is insusceptible to In alloying. The yield strengths of T6 and T5 alloys were 205.35 ± 2.63 MPa and 320.77 ± 1.70 MPa, respectively. Their superior mechanical strength can be attributed to the precipitation of nanoscale β′ phases.

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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.