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Effect of Ti on the microstructure change and oxidation behavior of Ni + CrAlYHfSiN composite coatings

机译:Ti对Ni + CrAlYHfSiN复合涂层微观结构变化和氧化行为的影响

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摘要

Two composite coatings are manufactured by reactive magnetron sputtering on superalloys. The effect of titanium on oxidation resistance and microstructural change of composite coatings were studied. Titanium in superalloys reacted with [N] ions in composite coating due to interdiffusion. The position of reaction zone was determined by the relative content of [N] ions and metallic aluminum in coating. Doping of titanium in alumina lead to a decrease of charged oxygen vacancies but Ti-A1(center dot) forms in this process. The transportation of Ti-A1(center dot) in oxide scale resulted in the formation of TiO2 and a higher oxidation rate of coating.
机译:通过反应磁控溅射在高温合金上制造两种复合涂层。研究了钛对复合涂层抗氧化性能和组织变化的影响。由于相互扩散,超级合金中的钛与复合涂层中的[N]离子反应。反应区的位置取决于涂层中[N]离子与金属铝的相对含量。氧化铝中钛的掺杂导致带电氧空位的减少,但在此过程中会形成Ti-Al(中心点)。 Ti-Al(中心点)在氧化皮中的迁移导致形成TiO2和较高的涂层氧化速率。

著录项

  • 来源
    《Corrosion science》 |2019年第4期|54-63|共10页
  • 作者单位

    Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China;

    Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China;

    Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China;

    Northeastern Univ, Corros & Protect Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Oxidation; High temperature protection; Titanium; Oxides scale; Composite coating;

    机译:氧化;高温保护;钛;氧化物水垢;复合涂层;
  • 入库时间 2022-08-18 04:13:38

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