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首页> 外文期刊>Fatigue & fracture of engineering materials and structures >Investigation on the grain boundary strengthening effect of a nickel-based superalloy
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Investigation on the grain boundary strengthening effect of a nickel-based superalloy

机译：镍基超合金晶界强化效应的研究

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摘要

The grain boundary strengthening effect (GBSE) was investigated for nickel-based superalloy bicrystals with various misorientations under different temperatures and loading directions. The results show that the GBSE is enhanced with the increase of misorientation and insensitive to the temperature and the loading direction relative to the GB also has a strong effect on the GBSE. On the other hand, the GBSE is often accompanied by GB cracking. The trend of grain boundary (GB) cracking is heightened with the increase of the misorientation and temperature, and the transformation of the loading direction from vertical to parallel.
机译：在不同温度和装载方向下，研究了镍基超合金双晶体的镍基超合金双晶的晶界强化效果（GBSE）。结果表明，随着误导性的增加，GBSE增强，对温度不敏感，加载方向相对于GB对GBSE具有很强的影响。另一方面，GBSE通常伴随着GB开裂。随着毫无疑问和温度的增加，晶界（GB）裂缝的趋势增强，以及垂直于平行的加载方向的转化。

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  • 作者

    Dongfang Shi; Zhenjun Zhang; Jinhai Hu; Zhefeng Zhang;

  • 作者单位

    Shi-changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences Shenyang China School of Materials Science and Engineering University of Science and Technology of China Shenyang China;

    Shi-changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences Shenyang China School of Materials Science and Engineering University of Science and Technology of China Shenyang China;

    School of Materials Science and Engineering and Key Laboratory for Anisotropy and Texture of Materials Ministry of Education Northeastern University Shenyang China;

    Shi-changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences Shenyang China School of Materials Science and Engineering University of Science and Technology of China Shenyang China;

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  • 正文语种 eng
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  • 关键词

    grain boundary; loading direction; misorientation; strengthening; superalloy bicrystal; temperature;

    机译：晶界;装载方向;杂乱无章;强化;超合金双晶;温度;

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