| 提高小口径深孔阀门密封面抗高温水蒸气腐蚀性能的研究 |
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| 引用本文： | 王爱华 杨崇铨. 提高小口径深孔阀门密封面抗高温水蒸气腐蚀性能的研究[J]. 理化检验(物理分册), 1995, 31(1): 24-28 |
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| 作者姓名： | 王爱华 杨崇铨 |
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| 作者单位： | 华中理工大学!武汉430074(王爱华,朱蓓蒂,陶曾毅,张东林,谢长生),北京电力设备总厂!102401(杨崇铨,张之栋,蔡徽) |
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| 摘 要： | 设计了一套高温水蒸气腐蚀的试验装置,利用这套装置对比了用于小口矩深孔阀门密封面上的三种焊层的抗高温水蒸气腐蚀性能,这三种焊层分别为：激光熔覆ＷＦ１４１合金层,手工电弧堆焊“丝１１１”和“堆５４７Ｍｏ”合金层。采用金相显微镜、Ｘ射线射仪、扫描电镜和能谱分析仪对腐蚀试样进行了分析,讨论了合金成分、焊层工艺等对密封面高温水蒸气腐蚀行为的影响,结果表明,激光熔覆ＷＦ１４１合金层具有优异的抗高温水蒸气腐蚀性
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| 关 键 词： | 激光熔覆 阀门 密封面 高温 水蒸气腐蚀抗力 |
STUDY ON IMPROVING THE CORROSION RESISTANCE OF SEALING SURFACES OF SMALL-BORE AND DEEP-HOLE VALVES TO HIGH TEMPERATURE STEAM |
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| Wang Aihua Zhu Beidi Tao Zengyi Zhang Donglin Xie Changsheng. STUDY ON IMPROVING THE CORROSION RESISTANCE OF SEALING SURFACES OF SMALL-BORE AND DEEP-HOLE VALVES TO HIGH TEMPERATURE STEAM[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 1995, 31(1): 24-28 |
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| Authors: | Wang Aihua Zhu Beidi Tao Zengyi Zhang Donglin Xie Changsheng |
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| Affiliation: | Wang Aihua Zhu Beidi Tao Zengyi Zhang Donglin Xie Changsheng(Huazhong University of Science &. Technology) Yang Chongquan Zhang Zidong Cai Hui(Beijing Power Equipment Group) |
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| Abstract: | A device was made to test the corrosion resistance of three kinds of coatings in high temperature steam. These coatings are laser-clad WF141 coating,manual are surfaced "wire 111" and "pile 547Mo" coatings which have been applied to the sealing surface of the valve. The tested specimens were analyzed using optical microscope,X-ray diffractometer,scanning electron microscope and energy dispersive X-ray spectrometer. The effect of the coatings' compositions and the cladding processes on the behaviour of high temperature steam corrosion has also been discussed. The result shows that the laser-clad WF141 coating possesses the best corrosion resistance to high temperature steam compared with other applied coatings. |
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| Keywords: | Laser cladding Manual arc surfacing Clad(surfaced) coatings Corrosion resistance to high temperature steam |
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