陕西煤炭2025，Vol.44Issue(10)：30-34,80,6.DOI:10.20120/j.cnki.issn.1671-749x.2025.1006
煤矿井下液压支架油缸内壁铁基熔覆层耐蚀性优化研究
Optimization of cladding Fe-based corrosion-resistant coating on the inner wall of hydraulic support column
摘要
Abstract
In order to improve the corrosion performance of the inner wall of the hydraulic support column and better adapt to the needs of modern coal mining,three kinds of Fe-based coatings were prepared on the inner wall of a hydraulic support column by laser cladding technology,and the microstructure,hardness distribution and corrosion resistance of the Fe-based corrosion-resistant coating on the inner wall of a column were analyzed by metallographic microscope,hardness test,electro-chemical corrosion and salt spray testing machine.The results show that the microstructure of the three coatings is compact and uniform,the average hardness of the three coatings is 1-2 times that of the matrix,and the average microhardness of A2 is 545.8 HV due to the maximum Mo content,which is higher than the average hardness of A1 and A3.The results of elec-trochemical test and salt spray test show that the corrosion resistance of the three coatings is better than that of the matrix,and the corrosion resistance of A3 is the best.关键词
激光熔覆/铁基涂层/显微组织/显微硬度/电化学腐蚀/盐雾腐蚀Key words
laser cladding/Fe-based coating/microstructure/microhardness/electrochemical corrosion/salt spray corrosion分类
矿业与冶金引用本文复制引用
党雷,王伟,张超,蒋鲤鸿..煤矿井下液压支架油缸内壁铁基熔覆层耐蚀性优化研究[J].陕西煤炭,2025,44(10):30-34,80,6.基金项目
陕西省教育厅服务地方专项科研计划项目(22JC047) （22JC047）
陕西省重点研发项目(2023-BGY-383) （2023-BGY-383）
