铬不锈钢_碳钢梯度材料的耐腐蚀性研究.pdfVIP

HotWorkingTechnology2019,Vol.48,No,4

锯不锈钢/碳钢梯度材料的耐腐蚀性研究

张宏博\张士宪气李慧蓉1,马涛I,李欣I,李孟星1,王丛李运刚I

(1.华北理工大学冶金与能源学院，河北唐山063009;2.河北工业职业技术学院，河北石家庄050091)

摘要：通过水溶液电沉积法在碳钢表面电沉积辂，并在高温下进行扩散退火处理，形成了一种锯不锈钢/碳钢梯

度材料。采用电化学测试实验法对该材料的耐腐蚀性进行研究；利用Tafel直线外推法对基体与锯不锈钢/碳钢梯度材

料的极化曲线进行拟合。结果表明：锯不锈钢/碳钢梯度材料的耐腐蚀性要高于碳钢基体的；随着含辂量的增加，梯度

材料的耐腐蚀性依次增强。表面Cr的百分含量与腐蚀电位的关系为£=-1.6+0.01514WQo

关键词：常；碳钢；极化曲线；耐腐蚀性

DOI:10.14158.cnki.1001-3814.2019.04.035

中图分类号：TG142.2；TG174.4文献标识码：A文章编号：1001-3814(2019)04-0138-03

ResearchonCorrosionResistanceofChromiumStainless

Steel/CarbonSteelGradientMaterials

ZHANGHongbo1,ZHANGShixian气LIHuirong1,MATao1,LIXin1,

LIMengxing1,WANGCong1,LIYungang1

(1.CollegeofMetallurgyandEnergy,NorthChinaUniversityofScienceandTechnology,Tangshan063009,China;2.Hebei

CollegeofIndustryandTechnology,Shijiazhuang050091,China)

Abstract:Chromiumwaselectrodepositedonthesurfaceofcarbonsteelbyaqueouselectrodepositionandthendiffusion

annealedathightemperaturetoformachromiumstainlesssteel/carbonsteelgradientmaterial.Thecorrosionresistanceofthe

materialwasstudiedbyelectrochemicaltestmethod,andthepolarizationcurveofthematrixandchromiumstainless

steel/carbonsteelgradientmaterialwasfittedbyTafellinearextrapolationmethod.Theresultsshowthatthecorrosion

resistanceofchromiumstainlesssteel/carbonsteelgradientmaterialishigherthanthatofcarbonsteelmatrix,andthe

corrosionresistanceofthegradientmaterialincreasessuccessivelywiththeincreaseofchromiumcontent.Therelationship

betweenthepercentageofCrobtainedandthecorrosionpotentialis£=-1.6+0.01514Wa.

Keywords:Cr;carbonsteel;p