WC-M coating to improve resistance of hydraulic turbines to cavitation erosion and abrasion

被引：0

作者：

Wang, B ^{[1
]}

Wang, YD ^{[1
]}

Zhang, ZH ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Dept Engn Mech, Kunming 650051, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2003年 / 13卷 / 04期

关键词：

WC-M coating; cavitation erosion; abrasion hydraulic turbines;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

WC-M hard-faced ceramic coating was made on the substrate of steel by means of high velocity oxygen-fuel flame (HVOF) thermal spraying. The resistance of this coating to cavitation erosion and abrasion (CEA) is about 2.5 times higher than that of 18-8 stainless steel, and is about 1.5 times higher than that of Stellite alloy (Co-CrWC) made in America. When this coating were applied to the hydraulic power stations with more silt content in the flow water, which reaches 50 kg/m(3), the resistance of above-mentioned coating to CEA was about 2 times to that of NiCr alloy coating, and is about 4-5 times to that of OCr13Ni4Mo stainless steel. In addition, the microhardness, microstructures and electron probe analyzing of the WC-M coating are all discussed.

引用

页码：893 / 897

页数：5

共 12 条

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