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The Effect of Cold-Rolling on the Microstructure and Corrosion Behaviour of 316L Alloy in FLiNaK Molten Salt
Corrosion Science ( IF 7.4 ) Pub Date : 2018-09-01 , DOI: 10.1016/j.corsci.2018.07.006
M. Maric , O. Muránsky , I. Karatchevtseva , T. Ungár , J. Hester , A. Studer , N. Scales , G. Ribárik , S. Primig , M.R. Hill

Abstract The effect of cold-rolling on the microstructure and molten salt corrosion behaviour of 316L alloy was investigated. Corrosion tests were performed in FLiNaK salt at 600 °C for 300 h. The present results indicate that cold-rolling leads to enhanced corrosion in molten salt despite its beneficial effect on the alloys mechanical properties. It is shown that the corrosion resistance of cold-rolled 316L alloy is largely governed by the presence of high-angle grain boundaries (HAGBs) and geometrically-necessary dislocations (GNDs). Exacerbated corrosion is thus directly related to the increased prevalence of grain boundaries and dislocations within the microstructure.

中文翻译:

冷轧对316L合金在FLiNaK熔盐中组织和腐蚀行为的影响

摘要 研究了冷轧对316L合金组织和熔盐腐蚀行为的影响。腐蚀测试在 FLiNaK 盐中在 600 °C 下进行 300 小时。目前的结果表明,冷轧导致熔盐腐蚀增强,尽管它对合金的机械性能有有益的影响。结果表明,冷轧 316L 合金的耐腐蚀性在很大程度上取决于大角度晶界 (HAGB) 和几何必要位错 (GND) 的存在。因此,腐蚀加剧与微观结构内晶界和位错的普遍增加直接相关。
更新日期:2018-09-01
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