Application of Nanocomposite Coatings to Protect Power Equipment from Droplet Impingement Erosion

V. N. Varavka; O. V. Kudryakov; A. V. Ryzhenkov; G. V. Kachalin; O. S. Zilova

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Application of Nanocomposite Coatings to Protect Power Equipment from Droplet Impingement Erosion

机译：纳米复合涂层在保护电力设备不受液滴撞击侵蚀中的应用

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The article presents the results of investigations aimed at making the last-stage blades of large steam turbines operating under the conditions of droplet impingement effects more resistant to wear through the use of layered ion-plasma nanocomposite coatings. The structure and properties of various metal and ceramic (nitride) systems are studied. Data on their strength characteristics are obtained using the indentation and sclerometry techniques. The resistance of coatings to droplet impingement erosion is determined from the results of rig tests. A correlation between the set of strength properties of coating and its resistance to erosion wear is established, and a conclusion is drawn from this correlation about the possibility to predict the behavior of coatings under the conditions of droplet impingement erosion from their preliminarily determined strength characteristics.

机译：本文介绍了旨在通过使用层状离子-等离子体纳米复合涂层使在液滴撞击效应条件下运行的大型蒸汽轮机的末级叶片更耐磨损的研究结果。研究了各种金属和陶瓷（氮化物）体系的结构和性能。使用压痕和硬度测量技术获得有关其强度特性的数据。涂层对液滴撞击侵蚀的抵抗力是由试验结果确定的。建立涂层的强度特性与其耐腐蚀磨损性之间的相关性，并从该相关性得出结论，即可以根据其初步确定的强度特性来预测在液滴撞击腐蚀条件下涂层的行为。

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来源
《Thermal engineering》 |2014年第11期|797-803|共7页
作者
V. N. Varavka; O. V. Kudryakov; A. V. Ryzhenkov; G. V. Kachalin; O. S. Zilova;
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作者单位

Don State Technical University, pl. Gagarina 1, Rostov-on-Don, 344000 Russia;

Don State Technical University, pl. Gagarina 1, Rostov-on-Don, 344000 Russia;

Moscow Power Engineering Institute National Research University, Krasnokazarmennaya ul. 14, Moscow, 111250 Russia;

Moscow Power Engineering Institute National Research University, Krasnokazarmennaya ul. 14, Moscow, 111250 Russia;

Moscow Power Engineering Institute National Research University, Krasnokazarmennaya ul. 14, Moscow, 111250 Russia;

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正文语种 eng
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关键词
steam turbine blades; droplet impingement erosion; durable coatings; structure and properties of coatings; nanocomposite materials; indentation; sclerometry;

机译：汽轮机叶片液滴撞击侵蚀;耐用涂料;涂料的结构和性能;纳米复合材料;缩进;硬度计;

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Application of Nanocomposite Coatings to Protect Power Equipment from Droplet Impingement Erosion

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