管径对B10管的冲刷腐蚀性能的影响

张素霞; 宋克兴; 国秀花; 张彦敏; 李晓孟

doi:10.15980/j.tzzz.2016.06.032

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管径对B10管的冲刷腐蚀性能的影响
Corrosion Behavior of B10 Copper-nickel Alloy Pipe in Flowing Artificial Seawater
2016年36卷第6期页码：669-672
纸质出版日期： 2016 ，
DOI： 10.15980/j.tzzz.2016.06.032

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[1]张素霞,宋克兴,国秀花,张彦敏,李晓孟.管径对B10管的冲刷腐蚀性能的影响[J].特种铸造及有色合金,2016,36(06):669-672.

Zhang Suxia, Song Kexing, Guo Xiuhua, et al. Corrosion Behavior of B10 Copper-nickel Alloy Pipe in Flowing Artificial Seawater[J]. Special Casting & Nonferrous Alloys, 2016,36(6):669-672.
[1]张素霞,宋克兴,国秀花,张彦敏,李晓孟.管径对B10管的冲刷腐蚀性能的影响[J].特种铸造及有色合金,2016,36(06):669-672. DOI： 10.15980/j.tzzz.2016.06.032.

Zhang Suxia, Song Kexing, Guo Xiuhua, et al. Corrosion Behavior of B10 Copper-nickel Alloy Pipe in Flowing Artificial Seawater[J]. Special Casting & Nonferrous Alloys, 2016,36(6):669-672. DOI： 10.15980/j.tzzz.2016.06.032.

摘要

在自制的管材冲刷试验机上

研究了20mm和38mm的两种B10合金管在人工海水中的冲刷腐蚀行为

测试了不同管径的合金管在相同流速的人工海水中腐蚀速率的变化。结果表明

人工海水的流速一定时

B10合金管的腐蚀速率随着冲刷时间的延长逐渐降低

最后趋于平稳。流速为3.0m/s时

38mm管材比20 mm的管材腐蚀速率大。38mm的管材冲刷48h后开始形成较完整的钝化膜

而20mm的管材在冲刷时间为96h时才开始形成钝化膜。

Abstract

The erosion-corrosion behavior of B10 pipes with20mm and38mm in diameter was tested on self-made pipe-testing machine in 3.0m/s of artificial seawater.The corrosion rate change of the alloyed pipe with different diameters was analyzed at artificial seawater with the same flow rate as the erosion time increases.The results indicate that at the fixed flow rate of artificial seawater

the corrosion rate of copper-nickel alloy pipe is decreased gradually to be stable with erosion time increase.With the flow rate of 3.0m/s

the corrosion rate of the pipe with diameter of 38 mm is the higher than that of one with diameter of 20 mm.The pipe with diameter of 38 mm can generate a more complete passivation film after erosion 48 h

and the pipe with diameter of 20 mm can form a passivation film after erosion 96 h.