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热氢处理对电场作用下Ti3Al合金扩散连接的影响

摘要第4-6页
Abstract第6-7页
Chapter 1 Introduction第10-43页
    1.1 Background and Source of the Subject第10-14页
        1.1.1 Source of the topic第10-12页
        1.1.2 Research background第12-14页
    1.2 Status of the Research in this field第14-40页
        1.2.1 Effects of hydrogen on materials第14-30页
        1.2.2 Hydrogenation technologies第30-36页
        1.2.3 Field-assisted diffusion bonding (FDB)第36-40页
    1.3 Content of the Project第40-41页
    1.4 Material necessary第41-42页
    1.5 Summary第42-43页
Chapter 2 Materials & Experiments第43-59页
    2.1 Hydrogenation Process第43-47页
        2.1.1 Establishment of hydrogenation parameters第43-45页
        2.1.2 Experimental protocol第45-47页
    2.2 Diffusion Bonding of Ti3Al alloys第47-54页
        2.2.1 Hydrogenation of the samples第47-48页
        2.2.2 Establishment of bonding parameters第48-50页
        2.2.3 Experimental protocol第50-54页
    2.3 Characterisation第54-57页
        2.3.1 Mechanical tests第54-56页
        2.3.2 Microstructural analysis第56-57页
    2.4 Summary第57-59页
Chapter 3 Hydrogenation of Ti3Al Alloy第59-79页
    3.1 Influences of the processing parameter on the hydrogen content第59-66页
        3.1.1 Influence of the temperature and holding time on hydrogen content第59-62页
        3.1.2 Influence of the gas flowing rate on hydrogen content第62-64页
        3.1.3 Influence of sample’s shape on hydrogen content第64-65页
        3.1.4 Accuracy analysis第65-66页
    3.2 Influence of hydrogenation on the microstructure第66-74页
        3.2.1 Observation of microstructure by Scanning Electron Microscopy第66-70页
        3.2.2 Analysis of phase structure by XRD第70-74页
    3.3 Hot deformation behavior of Ti3Al alloy with hydrogen第74-77页
    3.4 Summary第77-79页
Chapter 4 Electric Field Assisted Diffusion Bonding of Ti3Al Alloy withHydrogen第79-101页
    4.1 Determination of the optimum bonding parameters第79-83页
    4.2 Influence of the electric field and/or hydrogen on the diffusion bonding ofTi3Al alloys第83-99页
        4.2.1 Influence of the hydrogen content on the shear strength of Ti3Al alloybonding joints第84-86页
        4.2.2 Influence of the electric field on the shear strength of Ti3Al alloybonding joints第86-87页
        4.2.3 Cumulative effect of hydrogen content and electric field on the shearstrength of Ti3Al alloy bonding joints第87-89页
        4.2.4 Residual hydrogen content第89-92页
        4.2.5 Characterization of microstructure and hardness第92-99页
    4.3 Summary第99-101页
Conclusions第101-104页
References第104-111页
Acknowledgements第111页

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