邱质彬,李飞,乔立捷,王浩瀚,吴淑琴,张振亚,薛召露.NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12热障涂层在1 150℃水淬–热震环境中的服役行为[J].表面技术,2024,53(15):216-223, 233.
QIU Zhibin,LI Fei,QIAO Lijie,WANG Haohan,WU Shuqin,ZHANG Zhenya,XUE Zhaolu.Service Performance of NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12 Thermal Barrier Coating System under Water-Quenched Thermal Shock Environment at 1 150 ℃[J].Surface Technology,2024,53(15):216-223, 233 |
| NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12热障涂层在1 150℃水淬–热震环境中的服役行为 |
| Service Performance of NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12 Thermal Barrier Coating System under Water-Quenched Thermal Shock Environment at 1 150 ℃ |
| 投稿时间：2023-10-07 修订日期：2023-12-14 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.15.020 |
| 中文关键词: 热障涂层 服役温度 大气等离子喷涂技术 热导率 服役寿命 |
| 英文关键词:thermal barrier coatings service temperature atmospheric plasma spraying technology thermal conductivity service life |
| 基金项目:国家自然科学基金(U22A20110);安徽省杰出青年项目(2108085J22);安徽省高校自然科学基金(RZ2100003743) |
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| Author | Institution |
| QIU Zhibin | Huadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, China |
| LI Fei | Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of Education, Anhui University of Technology, Anhui Ma'anshan 243000, China |
| QIAO Lijie | Huadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, China;School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China |
| WANG Haohan | Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of Education, Anhui University of Technology, Anhui Ma'anshan 243000, China |
| WU Shuqin | Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of Education, Anhui University of Technology, Anhui Ma'anshan 243000, China |
| ZHANG Zhenya | Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of Education, Anhui University of Technology, Anhui Ma'anshan 243000, China |
| XUE Zhaolu | Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials Ministry of Education, Anhui University of Technology, Anhui Ma'anshan 243000, China |
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| 中文摘要: |
| 目的 热障涂层是主要应用于航空发动机涡轮叶片表面的高温防护材料，它可以有效降低基体的工作温度，是提高涡轮叶片的工作温度、延长其服役寿命的重要技术手段。氧化钇部分稳定的氧化锆(YSZ)在高温环境中易发生烧结、相转变等行为，降低了热障涂层的服役寿命，因此有必要研发新的热障涂层材料。方法 利用大气等离子喷涂技术制备了NiCrAlY/YSZ/Sm2Zr2O7和NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12热障涂层体系，利用XRD、DSC、SEM 等系统地研究了沉积态0.8Sm2Zr2O7-0.2Y3Al5O12涂层的相结构和热导率等。然后，将其在室温和1 150 ℃水淬–热震环境中进行循环服役行为测试，研究热障涂层体系在水淬–热震环境中的相结构演变、失效模式和失效机理等。结果 利用大气等离子技术沉积的0.8Sm2Zr2O7- 0.2Y3Al5O12涂层中具有非晶相，在1 200 ℃下热处理5 h后发现了SmAlO3相。沉积态0.8Sm2Zr2O7-0.2Y3Al5O12涂层的热导率维持在1.5 W/(m.K)，但随着温度的升高稍增大，经退火处理后其热导率高于沉积态0.8Sm2Zr2O7-0.2Y3Al5O12涂层的热导率，随着温度的升高呈先降低后升高的趋势。NiCrAlY/YSZ/Sm2Zr2O7热障涂层体系在12次循环后失效，而NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12热障涂层体系在90次循环后失效。结论 与NiCrAlY/YSZ/Sm2Zr2O7热障涂层体系相比，NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12热障涂层体系的循环服役寿命提高了约7倍。表明0.8Sm2Zr2O7-0.2Y3Al5O12是一种有潜力的热障涂层材料。 |
| 英文摘要: |
| Thermal barrier coatings are mainly used as high-temperature protective materials on the surface of aero-engine turbine blades to reduce the service temperature of substrate effectively, and are a key technical means to further improve the service temperature and extend the service life of turbine blades. The stabilized yttrium oxide zirconia (YSZ) undergoes sintering and phase transformation in high-temperature environments, reducing the service life of thermal barrier coatings. Therefore, it is necessary to develop new thermal barrier coating materials. The NiCrAlY/YSZ/Sm2Zr2O7 and NiCrAlY/YSZ/ 0.8Sm2Zr2O7-0.2Y3Al5O12 thermal barrier coating system was prepared by the atmospheric plasma spraying technology in this work, and the phase structure and thermal conductivity of the thermal barrier coating system were systematically studied with XRD, DSC, SEM, etc. As a comparison, NiCrAlY/YSZ/Sm2Zr2O7 thermal barrier coating system was deposited by the atmospheric plasma spraying technology, and the properties of NiCrAlY/YSZ/Sm2Zr2O7 thermal barrier coating system were also tested under the same conditions. Then, its service behavior in a water-quenched thermal shock environment between room temperature and 1 150 ℃ was studied, and the phase evolution, failure mode, and failure mechanism of thermal barrier coatings were elucidated. The 0.8Sm2Zr2O7-0.2Y3Al5O12 coating deposited by atmospheric plasma technology contained amorphous phases. After 5 hours of heat treatment at 1 200 ℃, the SmAlO3 phase was discovered. Microcracks and pores were found on the surface and cross-sectional area of the 0.8Sm2Zr2O7-0.2Y3Al5O12 coating, which was the typical feature of preparing thermal barrier coatings by atmospheric plasmon spraying technology. Cracks were not found at the adjacent layers in the NiCrAlY/ YSZ/Sm2Zr2O7 thermal barrier coating system, indicating that the NiCrAlY/YSZ/Sm2Zr2O7 thermal barrier coating system possessed excellent adhesion. The thermal conductivity of the as-sprayed 0.8Sm2Zr2O7-0.2Y3Al5O12 coating approximately remained at 1.5 W/(m.K), but it slightly increased with temperature increasing from room temperature to 800 ℃. After annealing treatment at 1 200 ℃ for 5 h, its thermal conductivity was higher than that of the as-sprayed 0.8Sm2Zr2O7- 0.2Y3Al5O12 coating, which firstly decreased and then increased with the increase of temperature. The NiCrAlY/YSZ/Sm2Zr2O7 thermal barrier coating system failed after 12 cycles. The peeling layer was found inside the Sm2Zr2O7 layer in the NiCrAlY/ YSZ/Sm2Zr2O7 thermal barrier coating system since the Sm2Zr2O7 possessed lower fracture toughness. The NiCrAlY/YSZ/ 0.8Sm2Zr2O7-0.2Y3Al5O12 thermal barrier coating system failed after 90 cycles. While the peeling layer was found inside the YSZ layer in the NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12 thermal barrier coating system, which indicated that the 0.8Sm2Zr2O7- 0.2Y3Al5O12 thermal barrier layer possessed excellent fracture toughness. Compared with the conventional NiCrAlY/YSZ/ Sm2Zr2O7 thermal barrier coating system, the cyclic service life of the NiCrAlY/YSZ/0.8Sm2Zr2O7-0.2Y3Al5O12 thermal barrier coating system increases by 7 times. The 0.8Sm2Zr2O7-0.2Y3Al5O12 is a potential candidate for the thermal barrier coating material. |
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