典型文献
Influence of the Electrode Distance on Microstructure and Corrosion Resistance of Ni-Cr Alloyed Layers Deposited by Double Glow Plasma Surface Metallurgy
文献摘要：
Ni-Cr alloyed layers were synthesized on the surface of Q235 mild steel by double-glow plasma surface metallurgy with different electrode distance. The microstructure and phases of the alloyed layer were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS), and X-ray diffraction (XRD). The corrosion behavior of the Ni-Cr alloyed layers both in 3.5％ NaCl and 0.5 M H2SO4 solution were systematically investigated by open-circuit potential (OCP), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The obtained results reveal that the Ni-Cr alloyed layer consists of a deposited layer and an inter-diffusion layer. With increasing the electrode distance, the relative thickness, microstructure and phase composition of the Ni-Cr alloyed layers vary greatly. Polarization data show the Ni-Cr alloyed layer with the electrode distance of 15 mm has highest corrosion resistance and lowest corrosion rate, while EIS results reveal the same trend. The highest protective efficiency in 3.5％ NaCl and 0.5 M H2SO4 solution are 99.23％ and 99.92％, respectively, obtained for the Ni-Cr alloyed layer with 15 mm electrode distance. When the electrode distance is too large, a thin and porosity Ni-Cr alloyed layer, caused by low plasma density and Kirkendall effect, will be obtained, and will decrease the protective efficiency in corrosive medium.
文献关键词：
中图分类号：
作者姓名：
HUANG Jun;YANG Siyu;CUI Shiyu;XU Jilin;ZHANG Jianping;LUO Junming
作者机构：
School of Materials Science and Engineering,Nanchang Hangkong University,Nanchang 330063,China
文献出处：
引用格式：
[1]HUANG Jun;YANG Siyu;CUI Shiyu;XU Jilin;ZHANG Jianping;LUO Junming-.Influence of the Electrode Distance on Microstructure and Corrosion Resistance of Ni-Cr Alloyed Layers Deposited by Double Glow Plasma Surface Metallurgy)[J].武汉理工大学学报（材料科学版）（英文版）,2022(06):1204-1215
A类：
Glow
B类：
Influence,Electrode,Distance,Microstructure,Corrosion,Resistance,Alloyed,Layers,Deposited,by,Double,Plasma,Surface,Metallurgy,alloyed,layers,were,synthesized,surface,Q235,mild,steel,double,glow,plasma,metallurgy,different,electrode,distance,microstructure,phases,characterized,scanning,electron,microscopy,energy,dispersive,ray,spectrometry,EDS,diffraction,corrosion,behavior,both,NaCl,H2SO4,solution,systematically,investigated,open,circuit,potential,OCP,potentiodynamic,polarization,electrochemical,impedance,spectroscopy,EIS,obtained,results,reveal,that,consists,deposited,inter,diffusion,With,increasing,relative,thickness,composition,vary,greatly,Polarization,data,show,highest,resistance,lowest,rate,while,same,trend,protective,efficiency,are,respectively,When,too,large,thin,porosity,caused,density,Kirkendall,effect,will,decrease,corrosive,medium
AB值：
0.549689
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