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Novel Cleaning Methodologies for Specimens Tested in Liquid Metals

机译：用于在液态金属中测试的样本的新型清洁方法

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摘要

Liquid metals are excellent coolants of fission and fusion reactors. However, the chemical compatibility of structural materials is important issue. The mass losses of the high-temperature materials such as FeCrAlODS, SiC, and refractory metals by corrosion in liquid metals are essential information to obtain their corrosion rates. The specimens must be cleaned to remove liquid metals solidified and adhered on the specimens after the corrosion tests, though the damage of the specimens in the cleaning procedure must be minimized. Cleaning methodologies appropriate for the specimens tested in liquid metals are urgently required for further compatibility study. The cleaning methodology with 0.1 M sodium hydroxide (NaOH) solution was developed, in which Sn was selectively dissolved without any damage on the specimens of the high-temperature materials. The cleaning procedure to remove Pb, Bi, and these alloys (i.e., Pb-16Li and Pb-Bi) adhered on the specimens in the solution mixture of acetic acid, ethanol, and H2O2 were also studied.
机译：液体金属是裂变和熔融反应器的优异冷却剂。然而，结构材料的化学兼容性是重要的问题。通过液态金属腐蚀，高温材料如FeCralods，SiC和耐火金属的质量损失是获得其腐蚀速率的基本信息。必须清洁试样以除去腐蚀试验后凝固并粘附在试样上的液态金属，但必须最小化清洁程序中的样本损坏。迫切需要适用于在液态金属中测试的样品的清洁方法进行进一步的相容性研究。开发了用0.1M氢氧化钠（NaOH）溶液的清洁方法，其中Sn被选择性地溶解，在高温材料的标本上没有任何损伤。还研究了清洗程序，除去Pb，Bi和这些合金（即，pb-16li和pb-bi）粘附在溶液混合物中的乙酸，乙醇和h2O2的样本上。

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