It is shown that the corrosion activity of tungstate solutions is caused by the presence of fluoride ions and by the total alkalinity. We determine the optimal mode of welding of carbon, chromium, and nickel-chromium steels. In the original tungstate solution, the maximum corrosion rate is recorded for specimens of VSt3sp carbon steel with welded joints. The electrochemical studies show that, in the original solution at room temperature, this type of steel corrodes in the passive state. As temperature or the concentrations of components of the solution increase to the values corresponding to the evaporated solution, the analyzed steel begins to corrode in the active state. Chromium and nickel-chromium steels (08Kh13, 08Kh22N6T, and 12Kh18N10T) preserve their passive state both in the original solution and in the evaporated solutions. The PON-A, PON-B, and PON-V paronites and TMKShch rubber are chemically stable and, therefore, suitable for the production of gaskets intended for operation in the original Na2WO4 solutions.

中文翻译：

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钨酸盐溶液中结构材料的耐腐蚀性

结果表明，钨酸盐溶液的腐蚀活性是由氟离子的存在和总碱度引起的。我们确定碳钢、铬钢和镍铬钢的最佳焊接模式。在原始钨酸盐溶液中，记录了具有焊接接头的 VSt3sp 碳钢试样的最大腐蚀速率。电化学研究表明，在室温下的原始溶液中，这类钢在钝化状态下发生腐蚀。随着温度或溶液成分的浓度增加到对应于蒸发溶液的值，被分析的钢开始在活性状态下腐蚀。铬和镍铬钢（08Kh13、08Kh22N6T 和 12Kh18N10T）在原始溶液和蒸发溶液中均保持其钝化状态。PON-A，