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首页> 外文期刊>Journal of Materials Engineering and Performance >Study on Corrosion Performance of Cu-Te-Se Alloys in a 3.5% Sodium Chloride Solution
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Study on Corrosion Performance of Cu-Te-Se Alloys in a 3.5% Sodium Chloride Solution

机译：Cu-Te-Se合金在3.5％氯化钠溶液中的腐蚀性能研究

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摘要

Samples of Cu-Te-Se alloys, previously aged or treated as a solid solution, were immersed in 3.5% (mass fraction) sodium chloride solution to investigate their corrosion resistance at room temperature by determining their corrosive weight loss. The morphologies of the precipitated phase and surface products following immersion were observed by scanning electron microscope. In addition, energy-dispersive spectroscopic analysis was used to determine the elemental constituents of precipitated phase and corroded surface of the alloy samples. The phase composition was measured by x-ray diffraction, and the electrochemical polarization behavior of the samples was determined using an electrochemical workstation. The experimental results revealed that the alloy samples appeared to corrode uniformly, which was accompanied by a small amount of localized corrosion. There was the possibility that localized corrosion could increase following aging treatment. The addition of a small amount of tellurium and selenium to the alloy appeared to retard oxygen adsorption on the copper in the alloy, which has ameliorated the alloy corrosion due to the similar physical and chemical properties of oxygen. In comparison to the solid solution state, the corrosion resistance of the alloy appeared to decline slightly following aging treatment.
机译：将预先老化或固溶的Cu-Te-Se合金样品浸入3.5％（质量分数）的氯化钠溶液中，通过测定其腐蚀失重来研究其在室温下的耐腐蚀性。通过扫描电子显微镜观察浸渍后的沉淀相和表面产物的形态。另外，使用能量分散光谱分析法确定合金样品的沉淀相和腐蚀表面的元素成分。通过X射线衍射测量相组成，并使用电化学工作站确定样品的电化学极化行为。实验结果表明，合金样品腐蚀均匀，伴有少量局部腐蚀。经过时效处理后，局部腐蚀可能会加剧。向合金中添加少量碲和硒似乎阻碍了氧吸附在合金中的铜上，由于氧的相似的物理和化学性质，这改善了合金的腐蚀。与固溶状态相比，该合金的耐蚀性在时效处理后似乎略有下降。

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