| 张晓辉,蔡建国,戴振华,卢昌福,王占华.裕溪船闸闸门底枢蘑菇头和轴的激光熔覆试验研究[J].水运工程,2021,(3):17-23 |
| 裕溪船闸闸门底枢蘑菇头和轴的激光熔覆试验研究 |
| Experimental research on mushroom head and shaft of Yuxi lock gate’s bottom pivot by laser cladding |
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| 中文关键词: 三角闸门 激光熔覆 基体 熔覆材料 |
| 英文关键词:wedge gate laser cladding substrate cladding material |
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| 中文摘要: |
| 以裕溪一线船闸扩容改造工程中34 m口门三角闸门的底枢蘑菇头和轴为研究对象，从宏观金相、微观组织、X射线衍射仪、硬度计检测熔覆层的表面硬度以及盐雾试验机测试试件的耐腐蚀性等方面，对不同的基体材料和激光熔覆粉末进行试验对比研究。结果表明：Ni40粉末和Co40粉末都具有较高的硬度和优良的耐腐蚀性能，满足底枢蘑菇头和轴激光熔覆的性能要求。Fe40和其他2种材料相比，在各种性能上都存在差异，不适合用作激光熔覆粉末。 |
| 英文摘要: |
| Taking the bottom pivot’s mushroom head and shaft of 34 m-entrance wedge gate in Yuxi first-line ship lock expansion and reconstruction project as a study case,we carry out comparative research on different base materials and laser cladding powders from the macroscopic metallography,microstructure,X-ray diffractometer,the surface hardness of the cladding layer, and the corrosion resistance of the specimen tested by the salt spray test machine. The results show that Ni40 powder and Co40 powder have high hardness and excellent corrosion resistance,which can meet the performance requirements of laser cladding. Compared with the other two materials,Fe40 has different properties and is not suitable for laser cladding powder. |
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