2；在1700 ℃熱震循環(huán)50周次和恒溫氧化5 h條件下，涂層的最大增重為1.8 mg/cm2。硅化物涂層在1800 ℃恒溫氧化環(huán)境下和1700 ℃熱震/恒溫氧化環(huán)境下具有優(yōu)異的抗氧化性能。"/>

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Nb-Hf 合金表面Si-Ti-Cr硅化物涂層在恒溫氧化和熱震中的高溫抗氧化性能
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作者單位:

1.北京星航機(jī)電裝備有限公司，北京 100074;2.哈爾濱工業(yè)大學(xué) 儀器科學(xué)與工程學(xué)院，黑龍江 哈爾濱 150001;3.哈爾濱工業(yè)大學(xué) 特種陶瓷研究所，黑龍江 哈爾濱 150001

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基金項(xiàng)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)


High-Temperature Oxidation Resistance Performance of Si-Ti-Cr Silicide Coating on Nb-Hf Alloy Surface in Constant Oxidation and Thermal Shock
Author:
Affiliation:

1.Beijing Xinghang Mechanical-electrical Equipment Co., Ltd, Beijing 100074, China;2.School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;3.Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, China

Fund Project:

National Defense Technical Basic Research Program of China (JSZL 2015603 B 002); Aviation Science Fund Project (20172777007); National Natural Science Foundation of China (52206225); China Aerospace Science and Industry Corporation Reliability Assurance Project (2021A007)

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    摘要:

    為了提高Nb-Hf 合金的高溫抗氧化性能，采用漿料燒結(jié)和高溫滲透制備了Si-Ti-Cr硅化物涂層。分析了Si-Ti-Cr 硅化物包覆的Nb-Hf 合金樣品在恒溫氧化和高溫?zé)嵴饤l件下的抗氧化性能，揭示了Si-Ti-Cr 涂層高溫恒溫氧化和高溫?zé)嵴饤l件下的失效機(jī)理。結(jié)果表明，在1800 ℃恒溫氧化5 h條件下，涂層的增重為7 mg/cm2；在1700 ℃熱震循環(huán)50周次和恒溫氧化5 h條件下，涂層的最大增重為1.8 mg/cm2。硅化物涂層在1800 ℃恒溫氧化環(huán)境下和1700 ℃熱震/恒溫氧化環(huán)境下具有優(yōu)異的抗氧化性能。

    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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安東陽,劉晨飛,趙爽,張海鵬,鄒永純,唐增武,蕭鵬,戴景民,王亞明.Nb-Hf 合金表面Si-Ti-Cr硅化物涂層在恒溫氧化和熱震中的高溫抗氧化性能[J].稀有金屬材料與工程,2023,52(4):1219~1226.[An Dongyang, Liu Chenfei, Zhao Shuang, Zhang Haipeng, Zou Yongchun, Tang Zengwu, Xiao Peng, Dai Jingmin, 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.]
DOI：10.12442/j. issn.1002-185X. E20220020

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  • 收稿日期:2022-09-04
  • 最后修改日期:2022-11-28
  • 錄用日期:2022-11-29
  • 在線發(fā)布日期: 2023-04-28
  • 出版日期: 2023-04-25