Fe基非晶合金在碱性溶液中的电化学行为及磁场对其耐蚀性能的影响中期报告.docx

Fe基非晶合金在碱性溶液中的电化学行为及磁场对其耐蚀性能的影响中期报告

Abstract

TheelectrochemicalbehaviorofFe-basedamorphousalloysinalkalinesolutionandtheeffectofmagneticfieldontheircorrosionresistancewerestudied.TheFe-basedamorphousalloywaspreparedbymeltspinninganditsmicrostructurewasanalyzedbyX-raydiffractionandtransmissionelectronmicroscopy.Electrochemicaltestswerecarriedoutin1MNaOHsolutionusingcyclicvoltammetryandelectrochemicalimpedancespectroscopy.TheresultsindicatedthattheFe-basedamorphousalloyexhibitedgoodcorrosionresistanceinalkalinesolution.ThemagneticfieldhadanotableeffectonthecorrosionresistanceoftheFe-basedamorphousalloy.Whenthemagneticfieldintensitywas0.5T,thecorrosionresistanceofthealloyimprovedsignificantly.

Introduction

Fe-basedamorphousalloyshaveattractedagreatdealofattentionduetotheirexcellentmechanicalproperties,highcorrosionresistanceandgoodsoftmagneticproperties[1-3].TheapplicationofFe-basedamorphousalloyshasbeenextendedtovariousfieldssuchasaerospace,biomedicalengineering,andenergystorage[4-6].Inrecentyears,theeffectofmagneticfieldontheelectrochemicalbehaviorofmetallicmaterialshasbeenwidelystudied[7-9].However,theeffectofmagneticfieldonthecorrosionresistanceofFe-basedamorphousalloysinalkalinesolutionhasnotbeenthoroughlyinvestigated.Therefore,inthisstudy,weinvestigatedtheelectrochemicalbehaviorofFe-basedamorphousalloysinalkalinesolutionandtheeffectofmagneticfieldonitscorrosionresistance.

MaterialsandMethods

TheFe-basedamorphousalloywaspreparedbymeltspinning.ThemicrostructureofthealloywasanalyzedbyX-raydiffractionandtransmissionelectronmicroscopy.Electrochemicaltestswerecarriedoutin1MNaOHsolutionusingaconventionalthree-electrodesystem.Cyclicvoltammetryandelectrochemicalimpedancespectroscopywereusedtocharacterizethe