王志平,战金滢,刘延宽,王璐璐.热障涂层演变、失效理论及模型建立研究进展[J].表面技术,2023,52(9):39-62.
WANG Zhi-ping,ZHAN Jin-ying,LIU Yan-kuan,WANG Lu-lu.Research Progress on Thermal Barrier Coating Evolution, Failure Theory and Modeling[J].Surface Technology,2023,52(9):39-62 |
| 热障涂层演变、失效理论及模型建立研究进展 |
| Research Progress on Thermal Barrier Coating Evolution, Failure Theory and Modeling |
| 投稿时间：2022-05-30 修订日期：2022-09-08 |
| DOI：10.16490/j.cnki.issn.1001-3660.2023.09.004 |
| 中文关键词: 热障涂层 结构演变 性能演变 失效理论 寿命预测 有限元分析 |
| 英文关键词:thermal barrier coating structural evolution property evolution failure theory life prediction finite element analysis |
| 基金项目:天津市教委科研计划(2020KJ016);国家重点研发计划项目(2019YFB1311100) |
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| Author | Institution |
| WANG Zhi-ping | Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin 300300, China;Shenyang University of Technology, Shenyang 110870, China |
| ZHAN Jin-ying | Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin 300300, China |
| LIU Yan-kuan | Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin 300300, China |
| WANG Lu-lu | Shenyang University of Technology, Shenyang 110870, China;China Southern Airlines, Shenyang 110169, China |
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| 中文摘要: |
| 目的 热障涂层(Thermal Barrier Coatings, TBCs)是用于保护热端部件的功能性涂层，但在复杂工况的影响下易于呈现提前破坏和过早失效的特点。以应用最广泛的钇稳定氧化锆(YSZ)双层热障涂层系统为例，阐述其服役过程中的结构和性能演变，分析失效机理，总结寿命预测模型并介绍相关模拟技术。方法 分别对经历不同条件高温氧化实验后的热障涂层开展元素渗透引起的界面微观结构变化、随反应进行发生的界面宏观结构变化以及高温引起的涂层本征性能变化分析，并且基于多种热力学实验结论和断裂力学、损伤力学等理论，结合有限元模拟手段，研究涂层内部结构变化过程，选用不同种类的标准有限元模型，建立条件选择方法以及典型的动态模拟扩展技术，观察裂纹导致涂层断裂等过程。结果 总结了目前常用的唯象寿命模型、断裂力学模型和损伤力学模型等失效寿命理论模型，提出相关失效评价方法。结论 随着航空发动机效率的不断提高，热障涂层必须面对更高的进气温度和更严峻、更复杂的工况，需要进一步丰富失效理论、完善失效寿命模型、仿真手段和相应数据库，同时其在开发新材料、新结构、新工艺、涂层组织纳米化等方面也有很大的研究和发展空间。 |
| 英文摘要: |
| Thermal barrier coatings (TBCs) are functional coatings used to protect hot-end components, but they are prone to advanced damage and premature failure under the effect of complex working conditions. With yttrium stabilized zirconia (YSZ) double-layer thermal barrier coating system as an example, the evolution of structure and performance during its service process is described, the failure mechanism is analyzed, the life prediction model is summarized and the relevant simulation techniques are introduced. |
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