| 风沙环境下钢结构表面涂层冲蚀行为与侵蚀机理研究 |
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| 引用本文： | 郝贠洪,邢永明,杨诗婷.风沙环境下钢结构表面涂层冲蚀行为与侵蚀机理研究[J].摩擦学学报,2010,30(1):26-31. |
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| 作者姓名： | 郝贠洪 邢永明 杨诗婷 |
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| 作者单位： | 1. 内蒙古工业大学土木工程学院,内蒙古,呼和浩特,010051;内蒙占工业大学理学院,内蒙古,呼和浩特,010051
2. 内蒙占工业大学理学院,内蒙古,呼和浩特,010051 |
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| 基金项目： | 国家自然科学基金项目（10662005） |
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| 摘 要： | 风沙环境的侵蚀和劣化作用严重影响着基础设施的安全耐久性.本文根据风沙环境特点,利用气流挟沙喷射法对钢结构涂层进行冲蚀试验,研究了涂层在风沙环境下的冲蚀磨损特性、冲蚀行为和侵蚀机理.结果表明:涂层磨损量随沙剂量和冲蚀速度的增加而增加;侵蚀机理为在低角度冲蚀下,涂层主要受微切削作用,而在高角度冲蚀下,主要受冲蚀挤压变形作用,由于涂层强度低而韧性较好,其在低角度冲蚀下的磨损更为严重.
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| 关 键 词： | 风沙 涂层 冲蚀 侵蚀 钢结构 |
Erosion-wear Behavior of Steel Structure Coating Subject to Sandstorm |
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| HAOYun-hong,XINGYong-ming and YANGShi-ting.Erosion-wear Behavior of Steel Structure Coating Subject to Sandstorm[J].Tribology,2010,30(1):26-31. |
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| Authors: | HAOYun-hong XINGYong-ming and YANGShi-ting |
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| Institution: | School of Civil Engineering, Hohhot 010051, China
.School of Science, Inner Mongolia University of Technology, Hohhot 010051, China;School of Science, Inner Mongolia University of Technology, Hohhot 010051, China;School of Science, Inner Mongolia University of Technology, Hohhot 010051, China |
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| Abstract: | Sandstorm has a great influence on the security and durability of infrastructure by eroding. Based on analysis of the sandstorm-environment, the sediment-air injection method was used to measure erosion-resistance of steel-structure coating, The results showed that the erosion-wear rate of the coating increased with increasing erosion-wear speed and duration. Erosion mechanism was that the coating was damaged by micro-cutting at low erosion angle, and also degraded by the impact of squeeze deformation at high erosion angle. Because of its low strength and high toughness, erosion-wear of the coating at low erosion angle was more severe than that at high erosion angle. |
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| Keywords: | sandstorm coating erosion wear steel-structure |
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