期刊论文

中文

中国表面工程

1007-9289

2013

26

3

69-74

10.3969/j.issn.1007-9289.2013.03.012

湖南省研究生科技创新项目（2012SCX06） 湖南省高校科技创新团队支持计划 湖南省重点学科建设项目（机械工程）

本校为第一机构

金属材料的腐蚀性能与其表面润湿特性有着密切的关系。采用亚音速火焰喷涂技术制备了玻璃-Cr_2O_3陶瓷涂层,设计了一套运行在高温环境中且密封的专用试验平台,研究经过不同保温时间后,重金属在45钢与喷有玻璃-Cr_2O_3陶瓷涂层的45钢表面的润湿角及相关现象的变化。结果表明:相同质量的重金属液滴在45钢表面的润湿角为18°,在玻璃-Cr_2O_3陶瓷涂层表面的润湿角为114°,玻璃-Cr_2O_3陶瓷涂层抗液态重金属润湿性能较好。固化后重金属颗粒与试样之间的接触面积及剪切强度均有所不同,304不锈钢与颗粒剪切强度为1.42 MPa,而涂层与颗粒剪切强度为0.21 MPa。

The corrosion resistance of metal materials is closely associated with the surface wetting property. A glass-Cr2O3 ceramic coating was prepared by subsonic flame spraying technology. Running in the high ternperature environment, a sealed and specialized experimental platform was designed. The wetting behaviors of liquid heavy metal on 45 steel and glass-Cr2O3 ceramic coating surface were evaluated after different time of heat preservation. The results show that the wetting angle is 114~ on the glass-Cr2O3 ceramic coating surface in contrast to 18~ on the 45 steel surface for the same heavy met...