| 超音速等离子喷涂连续梯度热障涂层工艺优化研究 |
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| 引用本文： | 郭永明,王海军,刘明,陆欢.超音速等离子喷涂连续梯度热障涂层工艺优化研究[J].装甲兵工程学院学报,2008,22(5). |
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| 作者姓名： | 郭永明 王海军 刘明 陆欢 |
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| 作者单位： | 装甲兵工程学院,装备再制造技术国防科技重点实验室,北京,100072 |
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| 基金项目： | 国家自然科学基金，国防重点实验室基金 |
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| 摘 要： | 采用"双通道、双温区"超音速等离子喷涂工艺制备了Ce-YSZ/NiCoCrAlY连续梯度热障涂层(CG-TBCs)。借助热喷涂粒子状态在线监测系统Spraywatch-2i,分别研究了电弧功率、喷涂距离对Ce-YSZ/NiCoCrAlY粒子速度和温度的影响。实验结果表明,当电弧功率为70 kW和68 kW时,Ce-YSZ与NiCoCrAlY粒子速度达到最高,分别为620 m/s和430 m/s。Ce-YSZ和NiCoCrAlY粉末粒子的平均温度均随电弧功率的增加而上升,但当功率分别达到60 kW和65 kW时,粒子温度的上升趋势不再明显。电弧功率选择在68 kW,喷涂距离定为90 mm左右时,制备的CG-TBCs在经历100次热循环后,其表面和内部均未出现明显的裂纹,具有优异的热震性能。
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| 关 键 词： | 超音速等离子喷涂 连续梯度热障涂层 工艺参数 优化 |
Research on the Technique Optimization of Supersonic Plasma Spray of Continuously Graded Thermal Barrier Coatings |
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| GUO Yong-ming,WANG Hai-jun,LIU Ming,LU Huan.Research on the Technique Optimization of Supersonic Plasma Spray of Continuously Graded Thermal Barrier Coatings[J].Journal of Armored Force Engineering Institute,2008,22(5). |
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| Authors: | GUO Yong-ming WANG Hai-jun LIU Ming LU Huan |
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| Institution: | (National Defense Key Laboratory for Remanufacturing Technology; Academy of Armored Force Engineering; Beijing 100072); |
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| Abstract: | A continuously graded thermal barrier coatings(CG-TBCs) system of Ce-YSZ/NiCoCrAlY is prepared with the new "dual channels,dual temperature regions" supersonic plasma spraying process.The effect of arc power and spraying distance on Ce-YSZ/NiCoCrAlY particle′s temperature and velocity is studied by using online test system of Spraywatch-2i.The results shows that Ce-YSZ and NiCoCrAlY particle′s velocity is at a tiptop(620 m/s and 430 m/s) when arc power is 70 kW and 68 kW respectively.Ce-YSZ and NiCoCrAlY pa... |
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| Keywords: | supersonic plasma sprays continuously graded thermal barrier coatings technique parameters optimization |
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