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Effects of Hydrogen on Corrosion and Anodic Behavior of Iron in Neutral and Alkaline Solutions

ABSTRACT第6-9页
Chapter 1 Introduction第16-31页
    1.1 Background第16-19页
    1.2 Review on related progress第19-28页
        1.2.1 Effects of hydrogen on open circuit states of iron and steels in aqueous solutions第19-22页
        1.2.2 Effects of hydrogen on anodic polarization behavior of iron and steels in aqueous solutions第22-24页
        1.2.3 The effects of hydrogen on the properties of the surface films formed on iron and steels in aqueous solutions第24-28页
    1.3 Main research contents in the present work第28-30页
        1.3.1 The effects of hydrogen on anodic dissolution and passivation of iron in alkaline solutions of various pH values第28-29页
        1.3.2 The effects of hydrogen on anodic dissolution, passivation,transpassivation and pitting corrosion of iron in weakly alkaline solutions with various concentrations of chlorides第29页
        1.3.3 The effects of hydrogen on corrosion products formed on iron in pure water, sulfate and chloride solutions第29-30页
    1.4 Objectives and significance第30-31页
Chapter 2 Materials and Experimental Methods第31-41页
    2.1 Material and specimen preparation第31-32页
        2.1.1 Specimen for dual cell第31页
        2.1.2 Specimen for hydrogen-charging and immersion tests第31-32页
    2.2 Experimental methods第32-33页
        2.2.1 Chemical used第32页
        2.2.2 Hydrogen-charging第32-33页
        2.2.3 Pre-cleaning by cathode polarization第33页
    2.3 Electrochemical cells第33-35页
        2.3.1 Two-electrode electrochemical cell第33页
        2.3.2 Three-electrode electrochemical cell第33-34页
        2.3.3 Devanathan type cell第34-35页
    2.4 Immersion tests第35页
    2.5 Electrochemical measurements第35-38页
        2.5.1 Open circuit potential第36页
        2.5.2 Electrochemical impedance spectroscopy (EIS)第36-37页
            2.5.2.1 Nyquist plots第36-37页
            2.5.2.2 Bode plots第37页
        2.5.3 Anodic polarization第37-38页
    2.6 Characterization of surface films第38-41页
        2.6.1 X-ray Diffraction (XRD) analysis第38页
        2.6.2 Raman Spectroscopy analysis第38-39页
        2.6.3 Scanning electron microscope (SEM) analysis第39页
        2.6.4 X-ray photoelectron spectroscopy (XPS) analysis第39-40页
        2.6.5 ICP-AES第40-41页
Chapter 3 Effects of Hydrogen on Anodic Dissolution and Passivation of Iron in Alkaline Solutions第41-82页
    3.1 Introduction第41-43页
    3.2 Experimental第43-47页
        3.2.1 Apparatus for electrochemical measurements第43页
        3.2.2 Hydrogen-charging第43-44页
        3.2.3 Pre-cleaning by cathode polarization第44页
        3.2.4 Electrochemical measurements第44-46页
        3.2.5 Analyses of solution composition after electrochemical measurements第46-47页
        3.2.6 Analysis of surface films第47页
    3.3 Results第47-74页
        3.3.1 Electrochemical behavior and surface film properties for iron in bicarbonate solutions第47-58页
            3.3.1.1 Open circuit potential第47-54页
            3.3.1.2 Potentiodynamic anodic polarization curves第54-58页
            3.3.1.3 Potentiostatic polarization results第58页
        3.3.2 EIS of non-charged and hydrogen-charged iron第58-64页
            3.3.2.1 Mixed bicarbonate/carbonate and carbonate solutions第62-64页
            3.3.2.2 Electrochemical behavior of iron in 0.1 mol/L Na OH solution第64页
        3.3.3 Surface film properties measured by XPS第64-70页
        3.3.4 Electrochemical behavior of iron in mixed bicarbonate/carbonate and carbonate solutions第70-72页
        3.3.5 Electrochemical behavior of iron in 0.1 mol/L Na OH solution第72-74页
    3.4 Discussion第74-81页
        3.4.1 Effects of solution composition and hydrogen on open circuit states第75-78页
        3.4.2 Effects of solution composition and hydrogen on anodic polarization behavior第78-80页
        3.4.3 Effects of solution composition and hydrogen on EIS第80-81页
    3.5 Conclusions第81-82页
Chapter 4 Effects of hydrogen on reactivation of iron in alkaline solutions第82-93页
    4.1 Introduction第82-83页
    4.2 Experimental第83-85页
        4.2.1 Material and electrolytes第83页
        4.2.2 Test procedure第83-85页
    4.3 Results and discussion第85-92页
        4.3.1 Open circuit potential第85-87页
        4.3.2 Electrochemical impedance spectroscopy第87-89页
        4.3.3 Anodic polarization curves第89-90页
        4.3.4 Effects of hydrogen on dissolution and passivation第90-92页
    4.4 Conclusions第92-93页
Chapter 5 Effects of Hydrogen on Anodic Dissolution, Passivation and Pitting Corrosion of Iron in Bicarbonate Solutions Containing Chloride Anions第93-117页
    5.1 Introduction第93-94页
    5.2 Experimentals第94-97页
    5.3 Results and discussion第97-115页
        5.3.1 Open circuit potentials第102-104页
        5.3.2 EIS results第104-105页
        5.3.3 Potentiodynamic anodic polarization curves第105-106页
        5.3.4 Potentiostatic polarization results第106-114页
            5.3.4.1 Current density vs. time curves第106-107页
            5.3.4.2 Surface morphologies第107-114页
        5.3.5 The effects of hydrogen and pre-cleaning on anodic dissolution,passivation and pitting corrosion第114-115页
    5.4 Conclusions第115-117页
Chapter 6 Effects of Hydrogen on Properties of the Corrosion Products Formed on Iron in Pure Water at Various Temperatures第117-126页
    6.1 Introduction第117页
    6.2 Experimental第117-119页
        6.2.1 Material and specimens第117-118页
        6.2.2 Hydrogen charging第118页
        6.2.3 Immersion tests and characterization of the surface films第118-119页
    6.3 Results and discussion第119-125页
        6.3.1 Surface morphologies of iron specimens after the immersion tests第119-121页
        6.3.2 Raman spectra and XRD patterns of the surfaces of corroded iron specimens第121-124页
        6.3.3 EIS and Mott-Shottky (M-S) plot results第124-125页
    6.4 Conclusions第125-126页
Chapter 7 Effects of Hydrogen on the Properties of Corrosion Products Formed on Iron in Chloride and Sulfate Solutions第126-148页
    7.1 Introduction第126-127页
    7.2 Experimental procedures第127-128页
        7.2.1 Material and specimen第127页
        7.2.2 Hydrogen charging第127-128页
        7.2.3 Immersion tests第128页
        7.2.4 Characterization of the corrosion products第128页
    7.3 Results and discussion第128-146页
        7.3.1 Effects of hydrogen on the properties of corrosion products formed on iron in chloride solutions第128-139页
            7.3.1.1 Open circuit potentials第129-131页
            7.3.1.2 Surface morphologies of iron specimens after the immersion tests第131-134页
            7.3.1.3 XRD patterns and Raman spectra of corroded iron specimens第134-139页
        7.3.2 Effects of hydrogen on the properties of corrosion products formedon iron in sulfate Solutions第139-146页
            7.3.2.1 Open circuit potentials第139-140页
            7.3.2.2 Surface morphologies of iron specimens after the immersion tests第140-142页
            7.3.2.3 XRD pattern and Raman spectra of corroded iron specimens第142-146页
    7.4 Conclusions第146-148页
Chapter 8 Conclusions and Suggested Future Work第148-151页
    8.1 Conclusions第148-150页
    8.2 Highlights and suggested future works第150-151页
References第151-163页
Publications during the Ph. D study第163-164页
Research Projects Involved During the Ph. D Study第164-165页
Scholarship and Awards第165-166页
Acknowledgements第166-167页
中文详细摘要第167-202页

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