焊管2024，Vol.47Issue(2)：63-69,7.DOI:10.19291/j.cnki.1001-3938.2024.02.010
氧化物陶瓷颗粒对铜基熔覆层组织演变及性能的影响
Effect of Oxide Ceramic Particles on Microstructure Evolution and Properties of Copper based Cladding Layer
摘要
Abstract
In order to improve the hardness and wear resistance of the copper based cladding layer,oxide ceramic particles with different composition ratios were added to the flux cored welding wire and a Cu-based cladding layer was prepared by using TIG cladding method.The effects of oxide ceramic particles with different composition ratios on the microstructure and properties of the copper based cladding layer were studied by using methods like OM,SEM,EDS,XRD,and microhardness testing.Research has found that as Al2O3/TiO2 decreases,the fluidity of the alloy liquid also improves,releasing residual stress,gradually transforming Cu(311)into Cu(200)peak,and promoting grain refinement at the top of the copper based cladding layer.At the same time,the amount of iron diffused towards the copper side gradually decreases,and the dendrites at the interface also show significant refinement.The hardness transition at the interfaces of the three cladding layers is smooth.The hardness of the top of the cladding gradually rises with the increase of TiO2.Al13Fe4 intermetallic compound appeared at the top of the 3#cladding layer,improving the surface properties of the cladding layer.In the friction and wear results,the wear amount gradually increases with the increase of TiO2,but the friction coefficient of the 3#cladding layer with significantly refined grains remains stable,with less furrowing effect.关键词
TIG堆焊/氧化物陶瓷颗粒/Cu基熔覆层/微观组织/摩擦磨损/硬度Key words
TIG surfacing/oxide ceramic particles/Cu-based cladding layer/microstructure/friction and wear/hardness分类
矿业与冶金引用本文复制引用
周文坤,刁健帅,张敏,张志强,毛威,王森淼..氧化物陶瓷颗粒对铜基熔覆层组织演变及性能的影响[J].焊管,2024,47(2):63-69,7.基金项目
国家自然科学基金"低合金钢/镍基合金层状复合材料熔覆层微观组织演变及相调控"(项目编号51974243) （项目编号51974243）
陕西省重点研发计划项目"铜/钢双金属梯度复合结构件制备关键技术及过渡材料研究"(项目编号2023-YBGY-470) （项目编号2023-YBGY-470）
陕西省重点研发计划(秦创原"科学家+工程师"队伍建设)"航空航天用高品质钛基钎料的设计开发及应用"(项目编号2023KXJ-234). （秦创原"科学家+工程师"队伍建设）
