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中国腐蚀与防护学报  2023, Vol. 43 Issue (4): 812-820     CSTR: 32134.14.1005.4537.2023.155      DOI: 10.11902/1005.4537.2023.155
  中国腐蚀与防护学会杰出青年成就奖论文专栏 本期目录 | 过刊浏览 |
MoSi2 改性YGYZ作为陶瓷面层的多层热障涂层体系的抗高温氧化性能研究
宇波1, 李彰1(), 周凯旋2, 田浩亮1(), 房永超1, 张晓敏2, 金国2
1.中国航发北京航空材料研究院 航空材料先进腐蚀与防护航空科技重点实验室 北京 100095
2.哈尔滨工程大学 表界面科学与技术研究所 哈尔滨 150001
High-temperature Performance of MoSi2 Modified YGYZ Thermal Barrier Coating
YU Bo1, LI Zhang1(), ZHOU Kaixuan2, TIAN Haoliang1(), FANG Yongchao1, ZHANG Xiaomin2, JIN Guo2
1.Aviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, AECC Beijing Institution of Aeronautical Materials, Beijing 100095, China
2.Institute of Surface Science and Technology, Harbin Engineering University, Harbin 150001, China
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摘要: 

为了提高传统ZrO2基陶瓷涂层在高温高压环境中的服役性能,本文基于由Y2O3/Gd2O3/Yb2O3共稳定的ZrO2(YGYZ) 面层、Eu2O3/Y2O3稳定ZrO2中间层、NiCoCrAlYTa底层构成的复合热障涂层,设计制备了YGYZ面层内掺杂了不同含量 (10%、20%和30%) MoSi2自修复粒子的新型热障涂层。利用扫描电子显微镜 (SEM)、X射线衍射仪 (XRD) 和X射线能谱仪 (EDS) 等表征涂层的微观和组织结构,借助箱式高温电阻炉测试涂层的抗高温氧化性能。研究结果表明:掺杂MoSi2自修复粒子的涂层截面形貌呈层状结构,其相结构不会因MoSi2掺杂量的变化而发生变化,均为t-ZrO2t-MoSi2相。其中,MoSi2含量为20%时,涂层在1100 ℃恒温氧化200 h后增重仅为3.7 mg/cm2,相较于MoSi2含量为10%与30%涂层分别下降了5%与18%,抗高温氧化性能最佳。

关键词 热障涂层自修复等离子喷涂抗氧化性能    
Abstract

In order to improve the service performance of traditional zirconia-based ceramic coatings in high-temperature and high-pressure environment, the novel thermal barrier coatings based on Y2O3/Gd2O3/Yb2O3 co-doped ZrO2 top layer (YGYZ), Y2O3/Eu2O3 co-doped ZrO2 middle layer and NiCoCrAlYTa bonding layer were prepared, whose YGYZ top layers were doped with 10%, 20%, and 30% MoSi2 self-healing particles, respectively. Then their microstructure, chemical composition, phase constitution and isothermal oxidation resistance at 1100 oC in air were assessed by means of scanning electron microscope (SEM), X-ray diffractometer (XRD), X-ray energy dispersive spectrometer (EDS) and box muffle furnace. The results show that the cross-sectional morphologies of the coatings doped MoSi2 self-healing particleswere layered structures, and their phase structures would not change with the variation of the doping amount of MoSi2, they were all composed of t-ZrO2 and t-MoSi2. Among them, the coating with a top layer doped 20% MoSi2 exhibited the best high temperature performance, whose weight gain was 3.7 mg/cm2 after 200 h constant temperature oxidation at 1100 oC, which decreased by 5% and 18%, respectively, compared to coatings with 10% and 30% MoSi2.

Key wordsthermal barrier coating    self-reparing    plasema spraying    oxidation resistance
收稿日期: 2023-06-01      32134.14.1005.4537.2023.155
ZTFLH:  TG156.88  
基金资助:国家重点研发计划(2121YFB3702004);国家自然科学基金(52075508)
通讯作者: 李彰,E-mail: lz960126@126.com,研究方向为热喷涂耐磨涂层设计及工程应用;田浩亮,E-mail: haoliangtian@163.com,研究方向为先进功能防护涂层材料设计、性能调控及工程应用   
Corresponding author: LI Zhang, E-mail: lz960126@126.com;TIAN Haoliang, E-mail: haoliangtian@163.com   
作者简介: 宇波,男,1979年生,硕士生
田浩亮,1986 年生,2014 年毕业于北京航空航天大学,获博士学位。现就职于中国航发北京航空材料研究 院,研究员,主要从事先进功能防护涂层材料设计、性能调控及工程应用研究。发表SCI/EI 论文60 余篇, 参编中英文著作2 部。授权国家发明专利25 项。曾获北京市优秀青年人才、北京市科技新星等荣誉称号。 荣获中国航发集团技术发明一等奖,中国腐蚀与防护学会科技进步一等奖 (2 项)、2023 年获得中国腐蚀与 防护学会杰出青年成就奖等。

引用本文:

宇波, 李彰, 周凯旋, 田浩亮, 房永超, 张晓敏, 金国. MoSi2 改性YGYZ作为陶瓷面层的多层热障涂层体系的抗高温氧化性能研究[J]. 中国腐蚀与防护学报, 2023, 43(4): 812-820.
YU Bo, LI Zhang, ZHOU Kaixuan, TIAN Haoliang, FANG Yongchao, ZHANG Xiaomin, JIN Guo. High-temperature Performance of MoSi2 Modified YGYZ Thermal Barrier Coating. Journal of Chinese Society for Corrosion and protection, 2023, 43(4): 812-820.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2023.155      或      https://www.jcscp.org/CN/Y2023/V43/I4/812

SampleZrO2Ni@MoSi2Y2O3Yb2O3Gd2O3
FM1Bal.109.55.65.2
FM2Bal.209.55.65.2
FM3Bal.309.55.65.2
表1  MoSi2/YGYZ粉末的成分 (mass fraction / %)
LayerArc current ASpray gun speed / mm·s-1Spray distance / mmWorking gas flow rate Ar (SLPM)Working gas flow rate H2 (SLPM)Carrier gas N2 (SLPM)
Bonding layer500~550600100~12030~358~104~6
Middle layer550~600600120~15032~3610~124~6
Top layer550~600600120~15036~4012~144~6
表2  大气等离子喷涂参数
图1  FM1、FM2和FM3粉末的SEM形貌
图2  FM2粉末在1250 ℃下煅烧2 h后的SEM形貌
PositionMoSiZrO
A1.266.3215.89Bal.
B1.386.8417.65Bal.
表3  FM2粉末煅烧后的EDS分析
图3  FM1、FM2和FM3粉末的XRD谱
图4  高温煅烧后FM1、FM2和FM3粉末的XRD谱
图5  FM2粉末高温煅烧后的XRD谱
图6  M1、M2与M3涂层的截面金相照片
图7  M1、M2和M3涂层的表面XRD谱
图8  M1、M2和M3涂层1100 ℃氧化增重曲线
图9  M1、M2和M3涂层1100 ℃氧化50 h后的XRD谱
图10  M1、M2和M3涂层1100 ℃氧化200 h后的XRD谱
图11  M1、M2与M3涂层在1100 ℃分别氧化50和200 h形成的TGO的截面形貌
图12  M1涂层氧化20 h后底层和中间层界面EDS分析
图13  M1涂层氧化50 h后底层和中间层界面EDS分析
SampleTaAlCoCrNiO
10.3742.113.633.733.95Bal.
2048.283.213.082.04Bal.
表4  M1涂层氧化50 h后TGO层的EDS分析结果
图14  M1涂层氧化200 h后粘结层和陶瓷层界面EDS分析
SampleTaAlCoCrNiO
1027.717.816.7820.12Bal.
20.151.271.360.981.02Bal.
表5  M1涂层氧化200 h后TGO层的EDS分析结果
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