点腐蚀试验结果表明，在整个试验过程中，钎料表面表现为均匀腐蚀，点蚀的迹象不明显。
Point corrosion testing indicated that there is not point corrosion mark, and uniform corrosion characteristic was present to the filler metal.
实验结果表明，X70管线钢凹坑是由于点蚀腐蚀所引起，而点蚀产生的原因是由于层流冷却水中的氯离子浓度偏高。
The results indicate that the holes of X70 pipeline steel result from pitting corrosion. And the appearance of the pitting corrosion is because of high concentration of Cl - in laminar-cooling water.
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