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首页> 外文会议>ASME international pipeline conference 2008 >EFFECTS OF MILLSCALE ON CORROISON OF ASTM A 36 STEEL IN 3 NACL
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EFFECTS OF MILLSCALE ON CORROISON OF ASTM A 36 STEEL IN 3 NACL

机译：轧制对3％NACL中ASTM A36钢腐蚀的影响

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摘要

Millscale is an oxide layer formed during the manufacturing processes of the pipe. Standard corrosion specimen preparation as recommended by ASTM G1 includes the cleaning and removal of the millscale layer, often by abrasion or acid pickling. These cleaning techniques can act to change the mechanical surface properties and can result in hydrogen charging. These standard corrosion tests do not show the true nature of the corrosion. The effects of millscale generally have been ignored in the past first due to the large amount of scatter that can be introduced into the results and second due to the belief that the millscale has negligible effects on the overall corrosion rate. This paper explores the effects of millscale on the corrosion conditions of hot rolled ASTM A36 steel with and without mill scale in dearated 3% NaCl solution at various pH levels through polarization experiments.
机译：氧化皮是在管道制造过程中形成的氧化层。根据ASTM G1的建议，标准腐蚀试样的制备包括通常通过磨蚀或酸洗来清洁和去除氧化皮层。这些清洁技术可以改变机械表面性能，并导致氢充入。这些标准腐蚀测试未显示腐蚀的真实性质。过去通常忽略了氧化皮的影响，首先是由于可以将大量散布到结果中，其次是由于认为氧化皮对整体腐蚀速率的影响可忽略不计。本文通过极化实验探索了在不同pH值的去离子3％NaCl溶液中，有无氧化皮的热轧ASTM A36钢在不同pH值下，热轧氧化皮对腐蚀条件的影响。

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