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Susceptibility to pitting corrosion of 6056 aluminium alloy

机译:6056铝合金的点蚀敏感性

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摘要

The susceptibility to pitting corrosion of the 6056 alloy was studied and compared to that of the 2024 alloy. The 6056 alloy was more resistant to pitting than the 2.24 alloy for high choride ion concentrations but less resistant for low chloride. Moreover, the variation of the susceptibility to pitting of the 6.56 alloy with the potential was similar to that of pure aluminium, unlike the 2.24 alloy which presented a peak of susceptibility to pitting. This difference was related to the behaviour of the coarse particles in the alloys. Because of this, the 6056 alloy appears more suitable that the 2024 alloy in conditions were pits can appear.
机译:研究了6056合金的点蚀敏感性,并将其与2024合金的点蚀敏感性进行了比较。对于高氯离子浓度而言,6056合金比2.24合金更耐点蚀,但对低氯化物的耐点蚀性却较低。此外,6.56合金的点蚀敏感性随电位的变化与纯铝相似,与2.24合金的点蚀敏感性峰值不同。这种差异与合金中粗颗粒的行为有关。因此,在可能出现凹坑的条件下,6056合金似乎比2024合金更合适。

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