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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Metallurgical Aspects Of Induction-bending Thick-walled Super Duplex Pipework
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Metallurgical Aspects Of Induction-bending Thick-walled Super Duplex Pipework

机译:感应弯曲厚壁超级双相管道的冶金学方面

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摘要

In this article, the authors' present findings indicate that the induction-bending process can have a severe detrimental effect on the mechanical properties and the corrosion resistance of super duplex stainless steel. After outlining the parametric testing of the pipe that produced reduction in properties, the article presents comparative data from mechanical testing, corrosion analysis, and micrographic analysis before and after induction bending and after post-bend heat treatment. An explanation for the deterioration of properties is provided in terms of metallurgical characteristics; the root cause of deterioration is discussed; a method of restoring the mechanical and corrosion resistant properties is provided; and finally, process improvements are suggested which might, if adopted, prevent the re-occurrence of this phenomenon in the future.
机译:在本文中,作者目前的发现表明,感应弯曲过程可能会对超级双相不锈钢的机械性能和耐腐蚀性产生严重的不利影响。在概述了导致性能下降的管道的参数测试之后,本文介绍了感应弯曲前后和弯曲后热处理后的机械测试,腐蚀分析和显微分析的比较数据。根据冶金特性提供了性能下降的解释。讨论了恶化的根本原因;提供一种恢复机械和耐腐蚀性能的方法;最后,提出了改进工艺的建议,如果采用的话,可能会防止将来再次出现这种现象。

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