The Difference Effect and the Chunk Effect
The Difference Effect and the Chunk Effect
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DOI：
10.1149/1.2427579
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发表时间：
1960-12
影响因子：
3.9
通讯作者：
G. Marsh;E. Schaschl
中科院分区：
文献类型：
--
作者：
G. Marsh;E. Schaschl
对于钢来说，负面差异效应可以用腐蚀来解释，即去除可能仅含有几个原子的金属块或“块”。 “块效应”也解释了观察到的事实，即在高腐蚀速率条件下，最小保护电流可能远小于计算的腐蚀电流。这表明块效应和阳极极化发生在同一块金属上。根据腐蚀剂的不同，可以观察到正差异效应或负差异效应。
The negative difference effect in the case of steel can be explained in terms of corrosion by removal of blocks or" chunks" of metal containing perhaps only a few atoms. The" chunk effect" also explains the observed fact that, under conditions of high corrosion rate, minimum protective current can be much less than the calculated corrosion current. It is suggested that the chunk effect and anodic polarization occur on the same piece of metal. Either the positive or the negative difference effect may be observed depending on the corrodent.