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考虑化学氧化效应时热障涂层氧化物的生长规律

柴怡君 林晨 李跃明

柴怡君, 林晨, 李跃明. 考虑化学氧化效应时热障涂层氧化物的生长规律[J]. 应用数学和力学, 2015, 36(4): 404-413. doi: 10.3879/j.issn.1000-0887.2015.04.008
引用本文: 柴怡君, 林晨, 李跃明. 考虑化学氧化效应时热障涂层氧化物的生长规律[J]. 应用数学和力学, 2015, 36(4): 404-413. doi: 10.3879/j.issn.1000-0887.2015.04.008
CHAI Yi-jun, LIN Chen, LI Yue-ming. Growth Trend of Thermal Grown Oxide in TBCs Under Chemical Oxidation Effect[J]. Applied Mathematics and Mechanics, 2015, 36(4): 404-413. doi: 10.3879/j.issn.1000-0887.2015.04.008
Citation: CHAI Yi-jun, LIN Chen, LI Yue-ming. Growth Trend of Thermal Grown Oxide in TBCs Under Chemical Oxidation Effect[J]. Applied Mathematics and Mechanics, 2015, 36(4): 404-413. doi: 10.3879/j.issn.1000-0887.2015.04.008

考虑化学氧化效应时热障涂层氧化物的生长规律

doi: 10.3879/j.issn.1000-0887.2015.04.008
基金项目: 国家重点基础研究发展计划(973计划)(2013CB035704); 国家自然科学基金(11472206)
详细信息
    作者简介:

    柴怡君(1991—),女,河南新乡人,硕士生(E-mail: cyj1991@stu.xjtu.edu.cn);李跃明(1961—),男,江苏无锡人,教授,博士生导师(通讯作者. E-mail: liyueming@mail.xjtu.edu.cn).

  • 中图分类号: O344

Growth Trend of Thermal Grown Oxide in TBCs Under Chemical Oxidation Effect

Funds: The National Basic Research Program of China(973 Program)(2013CB035704); The National Natural Science Foundation of China(11472206)
  • 摘要: 基于考虑氧化效应的Fick定律以及Voigt均匀性假设的氧化区两相材料的本构关系,开发了ABAQUS用户单元子程序.并基于重构的可反映热障涂层界面真实形貌的二维有限元模型,计算分析了氧化效应对TGO生长规律的影响,以及TC-TGO和BC-TGO界面的应力场分布.结果表明,未考虑氧化效应仅能获得TGO均匀生长的模拟结果,而考虑氧化效应得到了TGO的非均匀生长结果; 且考虑氧化效应相对于不考虑氧化效应时的界面应力处于较高水平. 此外,探索了氧化效应大小对TGO生长的影响规律, 发现氧化效应大则能促进TGO的不规则生长,氧化效应小则相反.
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出版历程
  • 收稿日期:  2014-09-24
  • 修回日期:  2015-01-06
  • 刊出日期:  2015-04-15

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