有色金属材料与工程2024，Vol.45Issue(3)：74-83,10.DOI:10.13258/j.cnki.nmme.20221209001
Al/Ti对Cu-10Ni合金耐冲刷腐蚀性能的影响
Effect of Al/Ti on erosion corrosion resistance of Cu-10Ni alloy
摘要
Abstract
The effect of microalloying on erosion-corrosion resistance of Cu-10Ni alloy in 3.5%NaCl solution was investigated.Cu-10Ni-1Fe-1Mn-X(X=0.2Al or 0.2Ti)was melted in a medium-frequency vacuum melting furnace.After the samples were prepared by the same heat treatment and cold deformation process,erosion-corrosion experiment was carried out together with Cu-10Ni alloy.The samples were analyzed and characterized by scanning electron microscope(SEM),X-ray diffractometer(XRD),electrochemical corrosion test,electrochemical impedance spectroscopy(EIS),X-ray photoelectron spectrometer(XPS),and mass loss test.The results show that the erosion-corrosion resistance of Cu-10Ni alloy was improved by adding 0.2Al/0.2Ti.This was because that the surfaces of Cu-10Ni-0.2Al and Cu-10Ni-0.2Ti alloys contained Al2O3 and TiO2 respectively,which could enhance the erosion-corrosion resistance of the samples.The erosion-corrosion resistance of Cu-10Ni-0.2Ti alloy was slightly better than that of Cu-10Ni-0.2Al alloy,because the Cu-10Ni-0.2Al alloy was easy to absorb Cl-in a Cl-enriched environment,resulting in certain cracks in the film.关键词
Cu-10Ni合金/微合金化/冲刷腐蚀Key words
Cu-10Ni alloy/microalloying/erosion-corrosion分类
矿业与冶金引用本文复制引用
张力元,刘平,王昊..Al/Ti对Cu-10Ni合金耐冲刷腐蚀性能的影响[J].有色金属材料与工程,2024,45(3):74-83,10.基金项目
国家重点研发计划资助项目(2017YFB0306405) （2017YFB0306405）
