<trans-title xml:lang="en">High Temperature Long-term Service Performance of TiAlCrY/YSZ Coating on TiAl Alloy</trans-title>

Yangyang PAN; Bo LIANG; Du HONG; Zhixiang QI; Yaran NIU; Xuebin ZHENG

doi:10.15541/jim20220327

Journal of Inorganic Materials, Volume. 38, Issue 1, 105(2023)

High Temperature Long-term Service Performance of TiAlCrY/YSZ Coating on TiAl Alloy

Yangyang PAN^1,2, Bo LIANG^1、*, Du HONG², Zhixiang QI³, Yaran NIU², and Xuebin ZHENG²

¹1. State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China

²2. Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

³3. MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, Engineering Research Center of Materials Behavior and Design, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China

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Figures & Tables(10)

1. Surface morphologies and XRD patterns of the as-sprayed YSZ (a-c) and TiAlCrY (d-f) coatings

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2. Diagram (a) and cross-sectional morphologies (b, c) of as-sprayed TiAlCrY/YSZ coating

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3. Cross-sectional morphologies (a, b) and EDS analyses (c, d) of TiAlCrY/YSZ coating after heat-treatment

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4. Cross-sectional morphologies and EDS results of TiAlCrY/YSZ coating after heat-treatment at 1100 ℃ for 100 h (a-d), 200 h (e-h) and 300 h (i-l)

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5. Cross-sectional morphologies (a, c, d) and EDS analyse (b) of TiAlCrY coating after heat-treatment at 1100 ℃ for 100 h

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6. Cross-sectional morphologies (a) and EBSD results (b, c) of NiCrAlY/YSZ coating after 100 h thermal-treatment at 1100 ℃.

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7. Thermal expansion coefficients (CTE) of YSZ coating, TiAl, TiAlCrY, and NiCrAlY alloys in the range of 100-1100 ℃

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8. EDS results (a) of IDZ and indentation morphologies of IDZ(b), NiCrAlY (c), and TiAlCrY (d) coatings under 4.9 N load

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Table 1. Compositions of YSZ, TiAlCrY and NiCrAlY powders (%, in atom)

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Table 1. Compositions of YSZ, TiAlCrY and NiCrAlY powders (%, in atom)

	Al	Cr	Y	Ti	Ni	Zr	O	Source
TiAlCrY	55.0	20.0	0.4	24.6	—	—	—	Nanjing University of Science and Technology
NiCrAlY	14.5	20.5	1.0	—	64.0	—	—	Institute of Metal Research, Chinese Academy of Sciences
YSZ	—	—	3.7	—	—	30.3	66.0	Sulzer Metco

Table 2. Spray parameters of YSZ, TiAlCrY and NiCrAlY coatings
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Table 2. Spray parameters of YSZ, TiAlCrY and NiCrAlY coatings
Coating Ar/slpm H₂/slpm Spray distance/mm Feed rate/(r·min^-1) Power/kW Vacuum pressure/Pa
TiAlCrY/ NiCrAlY 30-40 5-15 200-300 15-30 30-40 1-3
YSZ 30-40 5-15 90-130 15-30 38-48 —

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Yangyang PAN, Bo LIANG, Du HONG, Zhixiang QI, Yaran NIU, Xuebin ZHENG. High Temperature Long-term Service Performance of TiAlCrY/YSZ Coating on TiAl Alloy[J]. Journal of Inorganic Materials, 2023, 38(1): 105

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