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首页> 外文期刊>Journal of engineering materials and technology >Estimation of Steady-State Creep Behavior of Al_2O_3/YAG Eutectic Composite by Image-Based Finite Element Analysis
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Estimation of Steady-State Creep Behavior of Al_2O_3/YAG Eutectic Composite by Image-Based Finite Element Analysis

机译：基于图像的有限元分析估算Al_2O_3 / YAG共晶复合材料的稳态蠕变行为

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摘要

Al_2O_3/YAG eutectic composite has been developed for a structural material used in ultra high temperature environments over 1500 ℃ such as a gasturbine. Creep behavior is one of the important material properties in ultra high temperature materials: In the present study, we propose an image-based finite element analysis for estimating the steady state creep behavior of the Al_2O_3/YAG eutectic composite. In the image-based finite element analysis, microstructure of the material taken by a SEM is modeled into a finite element mesh using a software for image process. Then finite element creep analyses are carried out to obtain the steady state creep behavior of the Al_2O_3/YAG eutectic composite by using steady state creep constitutive equations for both Al_2O_3 single crystal and YAG single crystal. The results of steady state creep behavior obtained from the image-based finite element analysis are compared with the experimental results. It is found that the steady state creep behavior of the Al_2O_3/YAG eutectic composite is accurately estimated by the image-based finite element analysis. furthermore, we examine the effect of volume fractions of the constituents on the steady state creep behavior of the Al_2O_3/YAG eutectic composite.
机译：已开发出Al_2O_3 / YAG共晶复合材料，用于燃气轮机等在1500℃以上的超高温环境中使用的结构材料。蠕变行为是超高温材料的重要材料属性之一：在本研究中，我们提出基于图像的有限元分析，以估计Al_2O_3 / YAG共晶复合材料的稳态蠕变行为。在基于图像的有限元分析中，使用图像处理软件将由SEM捕获的材料的微观结构建模为有限元网格。然后通过有限元蠕变分析，通过使用Al_2O_3单晶和YAG单晶的稳态蠕变本构方程，获得Al_2O_3 / YAG共晶复合材料的稳态蠕变行为。从基于图像的有限元分析获得的稳态蠕变行为的结果与实验结果进行了比较。通过基于图像的有限元分析发现，Al_2O_3 / YAG共晶复合材料的稳态蠕变行为是准确估计的。此外，我们研究了成分的体积分数对Al_2O_3 / YAG共晶复合材料稳态蠕变行为的影响。

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  • 来源
    《Journal of engineering materials and technology》 |2003年第3期|p. 277-282|共6页
  • 作者

    Noriyuki Miyazaki; Toru Ikeda; Toshihiro Komura;

  • 作者单位

    Department of Chemical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 812-8581 Japan;

    Department of Chemical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 812-8581 Japan;

    Department of Chemical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 812-8581 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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