首页> 外文期刊>Applied Surface Science >Beneficial effect of shot peening on steamside oxidation of 300-series austenitic steels: An electrochemical study
【24h】

Beneficial effect of shot peening on steamside oxidation of 300-series austenitic steels: An electrochemical study

机译:喷丸处理对300系列奥氏体钢蒸汽侧氧化的有益作用:电化学研究

获取原文
获取原文并翻译 | 示例
       

摘要

The formation of a protective oxide ensures the good corrosion resistance of austenitic steels in high temperature steam. However after long-term interaction even the protective oxide may tend to exfoliate and cause operational problems. With shot peening believed to be an effective method for mitigating steamside oxidation and exfoliation, we compared oxide layers formed on two materials: AISI 316H with a rugged untreated surface and Super304H with a shot-peened surface. In addition to conventional methods (SEM/EDS, Raman spectroscopy), Mott-Schottky analysis was used to characterize the oxide layers in order to determine the quality of the protective oxide. The oxides formed on Super 304H showed unexpected semiconducting behaviour with a significantly lower charge carrier density, thereby supporting the benefits of shot peening. Our findings extend the knowledge applicable to the design of more efficient coal-fired power plants. (C) 2017 Elsevier B.V. All rights reserved.
机译:保护性氧化物的形成确保了高温蒸汽中奥氏体钢的良好耐腐蚀性。然而,在长期相互作用之后,甚至保护性氧化物也可能会剥落并引起操作问题。我们认为喷丸硬化是缓解蒸汽侧氧化和剥落的有效方法,我们比较了在两种材料上形成的氧化物层:未经处理的粗糙表面的AISI 316H和经喷丸硬化的表面的Super304H。除了常规方法(SEM / EDS,拉曼光谱法),还使用Mott-Schottky分析来表征氧化物层,以确定保护性氧化物的质量。在Super 304H上形成的氧化物表现出出乎意料的半导体行为,电荷载流子密度显着降低,从而支持喷丸处理的优势。我们的发现扩展了适用于更高效燃煤电厂设计的知识。 (C)2017 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号