烧结诱发的EB-PVD热障涂层微结构与弹性模量演化研究

张沈育; 王荣桥; 吕正哲; 赵炎; 刘海燕; 胡殿印

doi:10.13224/j.cnki.jasp.20240398

烧结诱发的EB-PVD热障涂层微结构与弹性模量演化研究

doi: 10.13224/j.cnki.jasp.20240398

张沈育^1,,
王荣桥^{1, 2, 3},
吕正哲⁴,
赵炎^{1, 3},
刘海燕^{3, 4},
胡殿印^{2, 3, 4,*, ,}

1.
北京航空航天大学能源与动力工程学院，北京 100191
2.
中小型航空发动机联合研究中心，北京 100191
3.
北京航空航天大学航空发动机结构强度北京市重点实验室，北京 100191
4.
北京航空航天大学航空发动机研究院，北京 100191

基金项目: 国家自然科学基金（12202028，52022007，51905510）；国家科技重大专项（J2019-Ⅳ-0009-0077，J2019-Ⅳ-0006-0074，J2019-Ⅳ-0016-0084）

详细信息

作者简介:
张沈育（1999-），男，硕士生，主要从事热障涂层失效等方面的研究。E-mail：282712185@qq.com

通讯作者:
胡殿印（1980-），女，教授，博士，研究领域为发动机结构强度及疲劳可靠性。E-mail：hdy@buaa.edu.cn

中图分类号: V254.2
计量
- 文章访问数: 766
- HTML浏览量: 349
- PDF量: 17
- 被引次数: 0
出版历程
- 收稿日期: 2024-06-19
- 网络出版日期: 2025-11-07

Evolution of microstructure and elastic modulus of EB-PVD thermal barrier coating induced by sintering

ZHANG Shenyu^1
,,
WANG Rongqiao^{1, 2, 3},
LYU Zhengzhe⁴,
ZHAO Yan^{1, 3},
LIU Haiyan^{3, 4},
HU Dianyin^{2, 3, 4,*
, ,}

1.
School of Energy and Power Engineering，Beihang University，Beijing 100191，China
2.
United Research Center of Mid-Small Aero-Engine，Beijing 100191，China
3.
Beijing Key Laboratory of Aero-Engine Structure and Strength，Beihang University，Beijing 100191，China
4.
Research Institute of Aero-Engine，Beihang University，Beijing 100191，China

摘要

摘要:
针对电子束物理气相沉积（EB-PVD）热障涂层的烧结行为研究了陶瓷层微结构及弹性模量演化。开展了EB-PVD热障涂层1150 ℃下的烧结试验，并利用扫描电子显微镜（SEM）对烧结后的试验件进行微结构观测，获取了陶瓷层柱状晶间隙演化过程。采用纳米压痕法测量试验件陶瓷层弹性模量，结果表明陶瓷层弹性模量在烧结初期迅速增加随后趋于平稳。为将陶瓷层弹性模量与微结构演化联系起来，结合制备态微结构建立了陶瓷层柱状晶模型，采用基于微结构演化的烧结力学模型计算得到了弹性模量的演化规律。结果表明烧结诱发的陶瓷层微结构致密化导致了其弹性模量的演化，基于微结构演化所建立的烧结力学模型能准确地预测弹性模量随烧结时间的演化规律，测试值与计算值误差小于±20%。
- 热障涂层 /
- 烧结行为 /
- 微结构演化 /
- 弹性模量演化 /
- 烧结力学模型
Abstract:
The microstructure and elastic modulus evolution of electron beam-physical vapor deposition (EB-PVD) thermal barrier coating were studied. The sintering test of EB-PVD thermal barrier coating at 1150 ℃ was carried out, and the microstructure of the test piece after sintering was observed by scanning electron microscope (SEM), and the evolution of columnar crystal gap in ceramic layer was obtained. The elastic modulus of ceramic layer was measured by nanoindenter. The results showed that the elastic modulus of ceramic layer increased rapidly at the initial stage of sintering and then became stable. In order to relate the elastic modulus of ceramic layer with the micro-structure evolution, a simplified cylindrical crystal model of ceramic layer was established based on the prepared microstructure, and the evolution law of the elastic modulus was obtained by using the sintering model based on the microstructure evolution. The results showed that the microstructure evolution induced by sintering led to the change of elastic modulus of ceramic layer. The sintering model based on the microstructure evolution can accurately predict the evolution law of elastic modulus with sintering time, and the error between the measured value and the calculated value was less than ±20%.
- thermal barrier coatings /
- sintering behavior /
- microstructure evolution /
- elastic modulus evolution /
- mechanical model of sintering

HTML

图 1 盘型试验件照片

Figure 1. Photo of disk test piece test

下载: 全尺寸图片幻灯片

图 2 EB-PVD 热障涂层系统侧面SEM显微结构

Figure 2. SEM microstructure on the side of the EB-PVD thermal barrier coating system

下载: 全尺寸图片幻灯片

图 3 1150 ℃烧结100、120 h和200 h试验结果

Figure 3. Results of sintering at 1150 ℃ for 100, 120 h and 200 h

下载: 全尺寸图片幻灯片

图 4 SEM观测位置

Figure 4. SEM observation position

下载: 全尺寸图片幻灯片

图 5 放大100倍的涂层表面形貌

Figure 5. 100 times enlarged coating surface morphology

下载: 全尺寸图片幻灯片

图 6 放大3000倍的涂层表面形貌

Figure 6. 3000 times enlarged coating surface morphology

下载: 全尺寸图片幻灯片

图 7 放大500倍的涂层侧面形貌

Figure 7. 500 times enlarged coating side morphology

下载: 全尺寸图片幻灯片

图 8 放大3000倍的涂层侧面形貌

Figure 8. 3000 times enlarged coating side morphology

下载: 全尺寸图片幻灯片

图 9 载荷位移曲线

Figure 9. Load-displacement curve

下载: 全尺寸图片幻灯片

图 10 简化的柱状晶和接触凸体的模型

Figure 10. Simplified cylindrical crystal and contact convex model

下载: 全尺寸图片幻灯片

图 11 柱状体凸体生长过程示意图

Figure 11. Schematic diagram of cylindrical convex growth process

下载: 全尺寸图片幻灯片

图 12 1150 ℃陶瓷层弹性模量模拟与试验

Figure 12. Simulation and test of elastic modulus of ceramic layer at 1150 ℃

下载: 全尺寸图片幻灯片

表 1 纳米压痕测试结果

Table 1. Nanoindentation test results

试验件状态	E/GPa	标准偏差/GPa
制备态	100.3	16.4
烧结1 h	121.2	24.8
烧结2 h	148.3	20.2
烧结5 h	155.1	24.9
烧结10 h	157.5	17.7
烧结40 h	169.4	9.2
烧结55 h	158.3	15.4
烧结80 h	167.3	10.8
烧结100 h	158.7	14.0

下载: 导出CSV

表 2 计算中使用到的材料参数^[18-19]

Table 2. Material parameters used in calculation^[18-19]

参数	数值
$ D $/10⁻³ （m²/s）	1
γ_s/（J/m²）	0.68
$ \varOmega $/10⁻²⁹ （m³/atom）	1.25
$\delta $/μm	0.32
Q/10⁵ （J/mol）	3.14
ν	0.2

下载: 导出CSV

参考文献(19)

[1]	PADTURE N P, GELL M, JORDAN E H. Thermal barrier coatings for gas-turbine engine applications[J]. Science, 2002, 296(5566): 280-284. doi: 10.1126/science.1068609
[2]	EVANS A G, MUMM D R, HUTCHINSON J W, et al. Mechanisms controlling the durability of thermal barrier coatings[J]. Progress in Materials Science, 2001, 46(5): 505-553. doi: 10.1016/S0079-6425(00)00020-7
[3]	郭洪波, 宫声凯, 徐惠彬. 先进航空发动机热障涂层技术研究进展[J]. 中国材料进展, 2009, 28(增刊2): 18-26. GUO Hongbo, GONG Shengkai, XU Huibin. Progress in thermal barrier coatings for advanced aeroengines[J]. Materials China, 2009, 28(Suppl. 2): 18-26. (in Chinese GUO Hongbo, GONG Shengkai, XU Huibin. Progress in thermal barrier coatings for advanced aeroengines[J]. Materials China, 2009, 28(Suppl. 2): 18-26. (in Chinese)
[4]	吕伯文, 江鹏, 李定骏, 等. 重型燃气轮机高温叶片热障涂层烧结问题研究进展[J]. 中国材料进展, 2020, 39(11): 855-870. LV Bowen, JIANG Peng, LI Dingjun, et al. Advances on the sintering of thermal barrier coatings for high temperature blade of industrial gas turbines[J]. Materials China, 2020, 39(11): 855-870. (in Chinese LV Bowen, JIANG Peng, LI Dingjun, et al. Advances on the sintering of thermal barrier coatings for high temperature blade of industrial gas turbines[J]. Materials China, 2020, 39(11): 855-870. (in Chinese)
[5]	陈炳贻. 航空发动机用热障涂层的发展[J]. 材料保护, 1997, 30(2): 19-21. CHEN Bingyi. Development of thermal barrier coatings for aeroengines[J]. Materials Protection, 1997, 30(2): 19-21. (in Chinese CHEN Bingyi. Development of thermal barrier coatings for aeroengines[J]. Materials Protection, 1997, 30(2): 19-21. (in Chinese)
[6]	ZHAO X, WANG X, XIAO P. Sintering and failure behaviour of EB-PVD thermal barrier coating after isothermal treatment[J]. Surface and Coatings Technology, 2006, 200(20/21): 5946-5955.
[7]	THOMPSON J A, CLYNE T W. The effect of heat treatment on the stiffness of zirconia top Coats in plasma-sprayed TBCs[J]. Acta Materialia, 2001, 49(9): 1565-1575. doi: 10.1016/S1359-6454(01)00065-9
[8]	ZHANG B C, CHEN Kuiying, BADDOUR N, et al. Failure and life evaluation of EB-PVD thermal barrier coatings using temperature-process-dependent model parameters[J]. Corrosion Science, 2019, 156: 1-9. doi: 10.1016/j.corsci.2019.04.020
[9]	张勇. 1 200 ℃烧结EB-PVD YSZ涂层微结构演变的TEM表征与分析[D]. 湘潭: 湘潭大学, 2015. ZHANG Yong. TEM characterization and analysis of microstructure evolution of EB-PVD YSZ coating sintered at 1 200 ℃[D]. Xiangtan: Xiangtan University, 2015. (in Chinese ZHANG Yong. TEM characterization and analysis of microstructure evolution of EB-PVD YSZ coating sintered at 1 200 ℃[D]. Xiangtan: Xiangtan University, 2015. (in Chinese)
[10]	OLIVER W C, PHARR G M. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J]. Journal of Materials Research, 1992, 7(6): 1564-1583. doi: 10.1557/JMR.1992.1564
[11]	CERNUSCHI F, BISON P G, MARINETTI S, et al. Thermophysical, mechanical and microstructural characterization of aged free-standing plasma-sprayed zirconia coatings[J]. Acta Materialia, 2008, 56(16): 4477-4488. doi: 10.1016/j.actamat.2008.04.067
[12]	LV Bowen, FAN Xueling, LI Dingjun, et al. Towards enhanced sintering resistance: Air-plasma-sprayed thermal barrier coating system with porosity gradient[J]. Journal of the European Ceramic Society, 2018, 38(4): 1946-1956. doi: 10.1016/j.jeurceramsoc.2017.12.008
[13]	KUMAR S, COCKS A C F. Computational modelling of constrained sintering in EB-PVD thermal barrier coatings[J]. Modelling and Simulation in Materials Science and Engineering, 2013, 21(6): 065008. doi: 10.1088/0965-0393/21/6/065008
[14]	PARHAMI F, MCMEEKING R M, COCKS A C F, et al. A model for the sintering and coarsening of rows of spherical particles[J]. Mechanics of Materials, 1999, 31(1): 43-61. doi: 10.1016/S0167-6636(98)00049-0
[15]	李庆扬. 数值分析[M]. 4版. 北京: 清华大学出版社, 2001.
[16]	王志刚, 刘仍谦, 谢敏, 等. Sc₂O₃和Y₂O₃复合掺杂ZrO₂热障涂层陶瓷材料的组织结构与力学性能[J]. 材料工程, 2024, 52(6): 139-146. WANG Zhigang, LIU Rengqian, XIE Min, et al. Microstructure and mechanical properties of ZrO₂ thermal barrier coating ceramic materials doped with Sc₂O₃ and Y₂O₃[J]. Journal of Materials Engineering, 2024, 52(6): 139-146. (in Chinese WANG Zhigang, LIU Rengqian, XIE Min, et al. Microstructure and mechanical properties of ZrO₂ thermal barrier coating ceramic materials doped with Sc₂O₃ and Y₂O₃[J]. Journal of Materials Engineering, 2024, 52(6): 139-146. (in Chinese)
[17]	FLECK N A, COCKS A C F. A multi-scale constitutive model for the sintering of an air-plasma-sprayed thermal barrier coating, and its response under hot isostatic pressing[J]. Journal of the Mechanics and Physics of Solids, 2009, 57(4): 689-705. doi: 10.1016/j.jmps.2009.01.001
[18]	CIPITRIA A, GOLOSNOY I O, CLYNE T W. A sintering model for plasma-sprayed zirconia TBCs Part I: free-standing coatings[J]. Acta Materialia, 2009, 57(4): 980-992. doi: 10.1016/j.actamat.2008.10.024
[19]	KRISHNAMURTHY R, SROLOVITZ D J. Sintering and microstructure evolution in columnar thermal barrier coatings[J]. Acta Materialia, 2009, 57(4): 1035-1048. doi: 10.1016/j.actamat.2008.10.053