| 摘要: |
| 利用等离子喷涂法在耐热钢1Cr18Ni9Ti基体表面喷涂NiCrAlY＋(ZrO2＋Y2O3)陶瓷热障涂层，并进行高温隔热性能试验，用XRD、SEM检测了试样的金相组织、结构及形貌，结果表明，陶瓷热障涂层与1Cr18Ni9Ti基体结合紧密；表面陶瓷层经高温氧化后处理后其硬度显著增高；进行850 ℃高温隔热性能试验，1Cr18Ni9Ti表面热障涂层隔热能力显著提高，达75 ℃。 |
| 关键词: 耐热钢 等离子喷涂 NiCrAlY＋(ZrO2＋Y2O3)涂层 热障涂层 |
| DOI： |
| 分类号: |
| 基金项目:北京市教委科技发展计划资助(5040202140) |
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| Study on Properties of Plasma Sprayed NiCrAlY＋（ZrO2＋Y2O3）Coating on Refr actory Steel Surface |
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LU Tao，CHEN Fei，DING Hua-dong1,2
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1.Department of Mechanical Engineering，Beijing Institute of Petrochemical Technology，Beijing 102617 China;2. Institute of armored force engineering，Beijing 100072 China
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| Abstract: |
| The NiCrAlY＋(ZrO2＋Y2O3) thermal barrier coating was prepared on the surface of refractory steel (1Cr18Ni9Ti) by plasma spraying technique. SEM observation showed that the bonding between thermal barrier coating and substrate was good. The surface hardness of 1Cr18Ni9Ti was improved, the microhardness of coating surface was about 673HV after the thermal barrier test at 850℃. The test results showed that the thermal barrier properties were improved remarkably. The phases and microstructure of the thermal barrier coating were determined by SEM. |
| Key words: refractory steel plasma spraying NiCrAlY＋(ZrO2＋Y2O3) thermal barrier coating |
