Characteristics of oxide film formed on cavitation-treated steel surface in water
Characteristics of oxide film formed on cavitation-treated steel surface in water
复制标题
空化处理钢表面在水中形成的氧化膜特性
DOI：
10.1016/j.jmrt.2022.05.182
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Toshihiko Yoshimura
中科院分区：
文献类型：
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作者：
Masataka Ijiri;Naoki Okamoto;Shun Okamoto;Takayuki Ogi;Shoichi Kikuchi;Toshihiko Yoshimura
易生锈的钢在水中会因腐蚀性因素而生锈。因此，要防止生锈的形成，必须在电镀或其他防锈措施之前消除各种腐蚀因素。在这项研究中，我们研究了机械化学多功能空化（MC-MFC）与次氯酸钠溶液和MFC在水中的钢表面的耐腐蚀性的改善。MFC和MC-MFC处理后钢表面生成的化合物主要为α-FeOOH和β-FeOOH。此外，在MC-MFC之后，在表面上不太可能发生红锈;因此，得出结论，β-FeOOH的量相对较高。在为评价防锈性而进行的联合循环试验中，在未处理和MC-MFC处理的表面上分别形成红色和黑色区域。MC-MFC处理过的表面有效地抑制了锈的形成，因为Fe化合物的量在深度方向上比在未处理的表面上少，如通过辉光放电光学发射光谱分析所确定的。
Rust in rust-prone steel is promoted in water by corrosive factors. Therefore, to prevent the formation of rust, it is necessary to eliminate various corrosive factors before plating or other rust prevention measures. In this study, we investigated improvement of the corrosion resistance of steel surfaces by mechanochemical-multifunction cavitation (MC-MFC) with a sodium hypochlorite solution and MFC in water. The compounds formed on the steel surface after MFC and MC-MFC were α-FeOOH and β-FeOOH. Furthermore, red rust was less likely to occur on the surface after MC-MFC; therefore, it was concluded that the amount of β-FeOOH was relatively high. In combined cycle tests conducted to evaluate the rust resistance, red and black regions were formed on the unprocessed and MC-MFC processed surfaces, respectively. The MC-MFC treated surface effectively suppressed rust formation because the amount of Fe compounds was less in the depth direction than on the untreated surface, as determined by glow-discharge optical emission spectroscopy analysis.