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首页> 外文期刊>Journal of Materials Research >Effect of rare earth element on the oxidation behavior of novel y/y' -strengthened Co-9Al-10W alloys
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Effect of rare earth element on the oxidation behavior of novel y/y' -strengthened Co-9Al-10W alloys

机译：稀土元素对新型y / y'增强Co-9Al-10W合金氧化行为的影响

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摘要

A series of oxidation experiments were carried out on these novel y/y' -strengthened cobalt-based alloys of the systems Co-9Al-10W and Co-9Al-10W-0.02X (X = La, Ce, Dy, Y) at 900 °C. The appropriate amounts' addition of rare earth elements leads to improved oxidation properties at 900 °C, especially La elements show the best oxidation resistance (129.008 mg/cm~2). However, the base Co-9Al-10W alloy shows the worst oxidation performance (151.544 mg/cm~2). Multilayer oxide layers formed during the oxidation process, the outer were mainly CoO and CO_3O_4 oxides, and the middle layer contained complex oxides (containing Co, Al, and W). The inner layer consists of little discontinuous oxides, included few Al_2O_3 oxides. There existed a different crack width and the base alloy had the widest crack. Moreover, there exists a phase transformation (y/y' to y/Co_3W) at the interface between oxide film and substrate.
机译：在Co-9Al-10W和Co-9Al-10W-0.02X（X = La，Ce，Dy，Y）系的新型y / y'增强钴基合金上进行了一系列氧化实验900℃。适当添加稀土元素可改善900°C的氧化性能，尤其是La元素具有最佳的抗氧化性（129.008 mg / cm〜2）。但是，Co-9Al-10W基合金的氧化性能最差（151.544 mg / cm〜2）。在氧化过程中形成的多层氧化物层，外部主要是CoO和CO_3O_4氧化物，中间层包含复合氧化物（包含Co，Al和W）。内层由很少的不连续氧化物组成，包括很少的Al_2O_3氧化物。裂纹宽度不同，基体合金的裂纹最宽。此外，在氧化物膜与基板之间的界面处存在相变（y / y'至y / Co_3W）。

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  • 来源
    《Journal of Materials Research》 |2017年第11期|2117-2126|共10页
  • 作者

    Qiong Wang; Qiang Yao; Jin-Zhu Song; Yan Wang; Yu-Hong Zhu; Tong Lu; Bao-Jun Han;

  • 作者单位

    National Supervising & Testing Center for Engineering Composite Materials' Quality, Jiangsu Provincial Supervising & Testing Research Institute for Products' Quality, Nanjing 210007, People's Republic of China;

    National Supervising & Testing Center for Engineering Composite Materials' Quality, Jiangsu Provincial Supervising & Testing Research Institute for Products' Quality, Nanjing 210007, People's Republic of China;

    National Supervising & Testing Center for Engineering Composite Materials' Quality, Jiangsu Provincial Supervising & Testing Research Institute for Products' Quality, Nanjing 210007, People's Republic of China;

    National Supervising & Testing Center for Engineering Composite Materials' Quality, Jiangsu Provincial Supervising & Testing Research Institute for Products' Quality, Nanjing 210007, People's Republic of China;

    National Supervising & Testing Center for Engineering Composite Materials' Quality, Jiangsu Provincial Supervising & Testing Research Institute for Products' Quality, Nanjing 210007, People's Republic of China;

    National Supervising & Testing Center for Engineering Composite Materials' Quality, Jiangsu Provincial Supervising & Testing Research Institute for Products' Quality, Nanjing 210007, People's Republic of China;

    School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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