DS和HVOF法制备防水蚀功能涂层的对比研究  

Comparative Study of the Functional Coating of Water Erosion Prepared by DS and HVOF

作　　者：叶林[1] 陈国星[1] 胡金力[1] 黄科峰[1] 黄骞[1] 刘泽坤[1] 尹嵩[1] 

机构地区：[1]苏州热工研究院有限公司,苏州215004

出　　处：《热喷涂技术》2013年第1期38-41,共4页Thermal Spray Technology

摘　　要：介绍了两种防止汽轮机末级叶片水蚀的喷涂工艺;对两种喷涂工艺制备的涂层进行金相组织、性能分析比较;通过水蚀实验比较两种喷涂工艺的应用性能。为以后国内HVOF技术替代国外DS技术,实现汽轮机叶片喷涂涂层国产化提供理论依据。Two kinds of spraying technology of anti-erosion used in last stage blades of steam turbine was introduced; the microstructure and the properties of coatings obtained by the two kinds of spraying technology; the application performances of two kinds of spraying technology were compared by Erosion experiments, the theoretical basis is provided for domestic HVOF technology replacing the foreign DS technology in the future, achieving the localization of the spray coatings for turbine blades.

关 键 词：汽轮机 末级叶片 水蚀 爆炸喷涂(DS) 超音速火焰喷涂(HVOF) 

分 类 号：TG174.4[金属学及工艺—金属表面处理]