Five-year atmospheric corrosion of Cu, Cr and Ni weathering steels in a wide range of environments
Five-year atmospheric corrosion of Cu, Cr and Ni weathering steels in a wide range of environments
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DOI：
10.1016/j.corsci.2018.06.039
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发表时间：
2018-08-15
影响因子：
8.3
通讯作者：
Morcillo, M.
中科院分区：
文献类型：
--
作者：
Diaz, I.;Cano, H.;Morcillo, M.
本文研究了在超低碳钢中加入Cu、Cr和Ni合金元素制备的14种耐候钢。这些钢在不同的大气中暴露了长达5年。用x射线衍射、光学显微镜和扫描电镜对钢的耐大气腐蚀性能进行了评价，并对形成的锈层进行了表征。添加Ni，特别是在3.0 wt%时，导致耐腐蚀性显著提高。所形成的铁锈包括绢云母相、针铁矿相和尖晶石相。x射线衍射还检测到少量的金刚砂（工业大气）和赤霞石（海洋大气）。
This work considers fourteen weathering steels manufactured by adding Cu, Cr and Ni alloying elements to extra mild steel. The steels were exposed for up to 5 years in different atmospheres. The atmospheric corrosion resistance of the steels was evaluated and the rust layers formed were characterised by X-ray diffraction, optical microscopy and scanning electron microscopy. The addition of Ni, particularly at 3.0 wt%, leads to a notable increase in corrosion resistance. The rusts formed contain lepidocrocite, goethite and spinel phases. X-ray diffraction also detected small amounts of kornelite (industrial atmosphere) and akaganeite (marine atmosphere).