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首页> 外文期刊>Engineering failure analysis >A study on the corrosion of stainless steel floor drains in an indoor swimming pool
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A study on the corrosion of stainless steel floor drains in an indoor swimming pool

机译：室内游泳池不锈钢地板排水管腐蚀研究

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摘要

This paper investigates the causes of pitting corrosion of stainless steel floor drains installed in an indoor swimming pool in a leisure and hotel complex. After a few months of service, corrosion pits were noted on the floor drain's surface. The chemical composition of the drain specified by the manufacturer indicates that it is made of X2CrNiMo17-12-2 (1.4404) stainless steel. An analysis of the chemical composition of the floor drains revealed that the Mo, Cr and Ni contents are in a low-range for this grade of stainless steel according to the PNEN 10088-2 standard. The results of the chemical composition analysis in microareas by the EDS method point to the concentration of chlorine and chlorine compounds on the surface. To measure corrosion damage, the corroded and uncorroded surfaces of the drain are measured by a contact profilometer and compared. The environment conditions of swimming pool water are examined. The results as well as a literature survey show that this grade of steel is not sufficiently corrosion-resistant for this type of application in a highly corrosive environment of indoor swimming pools, especially regarding components which are not regularly cleaned.
机译：本文调查了在休闲和酒店大楼内安装在室内游泳池的不锈钢地板漏斗的腐蚀的原因。在几个月的服务之后，地板流失表面上注意到腐蚀坑。制造商规定的漏极的化学成分表示它由X2Crnimo17-12-2（1.4404）不锈钢制成。根据PNENEN 10088-2标准，对地板漏极的化学成分的分析显示，MO，Cr和Ni含量在该等级的不锈钢的低范围内。 EDS法通过EDS方法分析的化学成分分析结果指向表面上氯和氯化合物的浓度。为了测量腐蚀损坏，通过接触轮廓仪测量漏极的腐蚀和未定位的表面并比较。检查了游泳池水的环境条件。结果以及文献调查表明，在室内游泳池的高度腐蚀性环境中，这种等级的钢材对这种类型的应用并不充分耐腐蚀，特别是关于不经常清洁的组件。

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