| Nb-Hf合金表面Si-Ti-Cr硅化物涂层在恒温氧化和热震中的高温抗氧化性能（英文） |
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| 引用本文： | 安东阳,刘晨飞,赵爽,张海鹏,邹永纯,唐增武,萧鹏,戴景民,王亚明.Nb-Hf合金表面Si-Ti-Cr硅化物涂层在恒温氧化和热震中的高温抗氧化性能（英文）[J].稀有金属材料与工程,2023,52(4):1219-1226. |
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| 作者姓名： | 安东阳 刘晨飞 赵爽 张海鹏 邹永纯 唐增武 萧鹏 戴景民 王亚明 |
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| 作者单位： | 北京星航机电装备有限公司，北京 100074;哈尔滨工业大学 仪器科学与工程学院，黑龙江 哈尔滨 150001,北京星航机电装备有限公司，北京 100074,北京星航机电装备有限公司，北京 100074,哈尔滨工业大学 特种陶瓷研究所，黑龙江 哈尔滨 150001,哈尔滨工业大学 特种陶瓷研究所，黑龙江 哈尔滨 150001,北京星航机电装备有限公司，北京 100074,哈尔滨工业大学 仪器科学与工程学院，黑龙江 哈尔滨 150001,哈尔滨工业大学 仪器科学与工程学院，黑龙江 哈尔滨 150001,哈尔滨工业大学 特种陶瓷研究所，黑龙江 哈尔滨 150001 |
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| 基金项目： | National Defense Technical Basic Research Program of China (No. JSZL 2015603 B 002), the Aviation Science Fund Project (No. 20172777007), the National Natural Science Foundation of China (52206225) |
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| 摘 要： | 为了提高Nb-Hf合金的高温抗氧化性能，采用浆料烧结和高温渗透制备了Si-Ti-Cr硅化物涂层。分析了Si-Ti-Cr硅化物包覆的Nb-Hf合金样品在恒温氧化和高温热震条件下的抗氧化性能，揭示了Si-Ti-Cr涂层高温恒温氧化和高温热震条件下的失效机理。结果表明，在1800℃恒温氧化5 h条件下，涂层的增重为7 mg/cm2；在1700℃热震循环50周次和恒温氧化5 h条件下，涂层的最大增重为1.8mg/cm2。硅化物涂层在1800℃恒温氧化环境下和1700℃热震/恒温氧化环境下具有优异的抗氧化性能。
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| 关 键 词： | 硅化物涂层 抗氧化 热震性能 恒温氧化 高温 |
| 收稿时间： | 2022/9/4 0:00:00 |
| 修稿时间： | 2022/11/28 0:00:00 |
High-Temperature Oxidation Resistance Performance of Si-Ti-Cr Silicide Coating on Nb-Hf Alloy Surface in Constant Oxidation and Thermal Shock |
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| An Dongyang,Liu Chenfei,Zhao Shuang,Zhang Haipeng,Zou Yongchun,Tang Zengwu,Xiao Peng,Dai Jingmin and Wang Yaming.High-Temperature Oxidation Resistance Performance of Si-Ti-Cr Silicide Coating on Nb-Hf Alloy Surface in Constant Oxidation and Thermal Shock[J].Rare Metal Materials and Engineering,2023,52(4):1219-1226. |
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| Authors: | An Dongyang Liu Chenfei Zhao Shuang Zhang Haipeng Zou Yongchun Tang Zengwu Xiao Peng Dai Jingmin and Wang Yaming |
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| Affiliation: | Beijing Xinghang Mechanical-electrical Equipment Co., Ltd, Beijing 100074, China;School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China,Beijing Xinghang Mechanical-electrical Equipment Co., Ltd, Beijing 100074, China,Beijing Xinghang Mechanical-electrical Equipment Co., Ltd, Beijing 100074, China,Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, China,Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, China,Beijing Xinghang Mechanical-electrical Equipment Co., Ltd, Beijing 100074, China,School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China,School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China,Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | To improve the high-temperature oxidation resistance performance of Nb-Hf alloys, Si-Ti-Cr silicide coatings were prepared on Nb-Hf alloy by slurry sintering and high-temperature permeation methods. The high-temperature oxidation resistance performance of Si-Ti-Cr silicide coating on Nb-Hf alloys in high-temperature constant oxidation and high-temperature thermal shock was analyzed, and the failure mechanism of Si-Ti-Cr coating in high-temperature constant oxidation and high-temperature thermal shock was determined. The results show that the mass gain of the coating is 7 mg/cm2 after constant oxidation at 1800 °C for 5 h. The mass gain of the coating in atmosphere is less than 1.8 mg/cm2 after thermal shock cycles for 50 cycles followed by constant oxidation at 1700 °C for 5 h. Therefore, the silicide coating exhibits excellent oxidation resistance at 1800 °C in constant oxidation and at 1700 °C in thermal shock/constant oxidation. |
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| Keywords: | silicide coating oxidation resistance thermal shock resistance constant oxidation high temperature |
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