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Synergistic effect of corrosion and wear of the 316 stainless steel in molten zinc alloy at 460 °C
Corrosion Science ( IF 8.3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.corsci.2019.108411
Zhongdi Yu , Minghui Chen , Fengjie Li , Shenglong Zhu , Fuhui Wang

Abstract The failure of 316 stainless steel under tribo-corrosion in molten zinc alloy (Zn-0.2Al, wt%) at 460 °C was investigated and compared with corrosion or the sole wear. In the absence of wear, intact Fe2Al5Znx layer forms and protects the steel from dramatic corrosion. Without liquid-metal corrosion, the steel suffers from plastic deformation on friction and slight adhesive wear. While for tribo-corrosion, the synergy of corrosion and wear accounts for 90 % of material loss. Firstly, corrosion generates a brittle scale and leads to embrittlement at subsurface, which accelerate wear. Secondly, wear promotes the formation of less-protective FeZn10 scale, accelerating corrosion.

中文翻译:

316不锈钢在460℃熔融锌合金中腐蚀磨损的协同效应

摘要 研究了 316 不锈钢在 460 °C 熔融锌合金 (Zn-0.2Al, wt%) 摩擦腐蚀下的失效,并与腐蚀或鞋底磨损进行了比较。在没有磨损的情况下,完整的 Fe2Al5Znx 层形成并保护钢免受剧烈腐蚀。在没有液态金属腐蚀的情况下,钢在摩擦时会发生塑性变形和轻微的粘着磨损。而对于摩擦腐蚀,腐蚀和磨损的协同作用占材料损失的 90%。首先,腐蚀会产生脆性氧化皮并导致次表面脆化,从而加速磨损。其次,磨损促进了保护性较差的 FeZn10 氧化皮的形成,加速了腐蚀。
更新日期:2020-04-01
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