氯化物浓度对马氏体时效钢腐蚀速率的影响

物理化学期刊(英文) Pub Date : 2014-10-15 DOI:10.4236/OJPC.2014.44018

H. E. Desouky, H. Abo-Eldahab

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引用次数: 10

摘要

马氏体时效钢的腐蚀行为通过不同的技术进行了研究，包括开路电位和极化测量，以及光学显微镜和x射线衍射(XRD)等显微组织检查。研究了马氏体时效钢在0.1 ~ 2m浓度氯化钠溶液中的腐蚀行为，发现马氏体时效钢的耐腐蚀性与氯化钠溶液浓度成反比。马氏体时效钢的耐蚀性与Mo、Ti含量成正比。马氏体时效钢经过热处理后，其力学性能得到改善，但由于金属间化合物的析出导致一定的电偶作用，对腐蚀行为没有影响。而Mo含量低于V的试样在热处理后的耐蚀性有所提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of Chloride Concentration on the Corrosion Rate of Maraging Steel

The corrosion behavior of Maraging steel has been studied by using different techniques, including open circuit potential and polarization measurements in addition to microstructure examination such as optical microscopy and XRD (X-Ray Diffraction) investigation. The corrosion behavior of Maraging steel has been examined in sodium chloride solutions with different concentrations from 0.1 M to 2 M. It was found that the corrosion resistance of Maraging steel is inversely proportional with the concentration of sodium chloride solution. The corrosion resistance is directly proportional to the Mo and Ti content in the Maraging steel. Heat treatment of the Maraging steel improved its mechanical properties with no effect on the corrosion behavior as the precipitation of inter-metallic compounds leading to some galvanic action. However, sample IV having lower Mo content than sample V showed after heat treatment an improvement in the corrosion resistance.

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来源期刊

物理化学期刊(英文)

自引率

0.00%

发文量

133