The corrosion mechanism of a stainless steel electrode in the dynamic melting of Al at high temperature
The corrosion mechanism of a stainless steel electrode in the dynamic melting of Al at high temperature
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DOI：
10.1016/j.msea.2008.04.074
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发表时间：
2009-01
期刊：
影响因子：
6.4
通讯作者：
Yang Rui-feng;Zhang Peng;W. Hui
中科院分区：
文献类型：
--
作者：
Yang Rui-feng;Zhang Peng;W. Hui
采用扫描电镜、电子探针和金相分析相结合的方法对不锈钢电极在动态熔铝液中的腐蚀机理进行了实验研究。结果表明，腐蚀过程主要由物理腐蚀（流动和冲刷腐蚀）和化学腐蚀（形成FeAl和Fe2Al5）两种机制共同作用而成。腐蚀界面厚度约为10μm，不同于铝与铁基体在静态熔炼中几百μ m的界面宽度。
Experimental investigations on corrosion mechanism of stainless steel electrode in the dynamic melting aluminum liquid are made by scanning electron microscopy and microstructure and composition analyses by electron probe analysis combined with metallic phase analysis. It can be concluded that the corrosion process is mainly composed of physical corrosion (flowing and scouring corrosion) and chemical corrosion (forming FeAl and Fe2Al5) and the two mechanisms usually operate simultaneously. The corrosion interface thickness was found to be about 10μm, which is different to the usual interface width of hundreds of micrometers in the static melting of Al with iron matrix.