Suitability of nickel aluminium bronze alloy fabricated by laser powder bed fusion to be used in the marine environment
Suitability of nickel aluminium bronze alloy fabricated by laser powder bed fusion to be used in the marine environment
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DOI：
10.1016/j.corsci.2023.111656
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发表时间：
2023-11
影响因子：
8.3
通讯作者：
C. Arcos;J.A. Ramos-Grez;M. Sancy;I. La Fé-Perdomo;R. Setchi;C. Guerra
中科院分区：
文献类型：
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作者：
C. Arcos;J.A. Ramos-Grez;M. Sancy;I. La Fé-Perdomo;R. Setchi;C. Guerra
镍铝青铜合金试样使用激光粉末床熔融（LPBF）和进行热处理，以了解其腐蚀行为时，暴露于3.5重量%的NaCl溶液。电化学分析，包括阻抗谱和极化曲线，进行表征浸泡30天后的样品。研究结果表明，作为建成的样品表现出上级耐腐蚀性相比，热处理的样品，主要归因于较低的金属间相的存在，这阻碍了合金的钝化过程。
Nickel aluminium bronze alloy specimens were produced using laser powder bed fusion (LPBF) and subjected to heat treatment to understand their corrosion behaviour when exposed to a 3.5 wt% NaCl solution. Electrochemical analysis, including impedance spectroscopy and polarization curves, was performed to characterize the samples after 30 days of immersion. The findings reveal that the as-built samples exhibit superior corrosion resistance compared to the heat-treated samples, primarily attributed to the lower presence of intermetallic phases, which hinder the alloy's passivation process.