文摘
英文文摘
谨献
Index of abbreviations and symbols
Chapter 1. Duplex stainless steels
1.1 Introduction to duplex stainless steels
1.2 Physical properties
1.3 Ambient temperature mechanical properties
1.3.1 Influence of element composition
1.3.2 Influence of microstructure
1.3.3 Influence of texture
1.3.4 Effect of cold work
Chapter 2. Representation and measurement of microstresses
2.1 Fundamentals for mechanical properties
2.2 Residual stress analysis
2.2.1 Macrostresses and microstresses
2.2.2 Intergranular microstresses
2.2.3 Interphase microstresses
2.3 Microstrain measurement by diffraction
2.3.1 Generalities for diffraction methods
2.3.2 Neutron Diffraction
2.4 Background, aim, and main work of the thesis
Chapter 3. Experimental
3.1 Materials
3.2 Texture measurements by X-ray diffraction
3.3 Microstructure characterization by EBSD
3.3.1 Experimental set-up and procedures
3.3.2 Experimental results and discussion
3.4 Lattice strain measurements by neutron diffraction
3.4.1 Experimental set-up and procedures
3.4.2 Experimental considerations
3.4.3 Experimental results and discussion
Chapter 4. Self-consistent modeling of heterogeneous stress in duplex steel
4.1 Typical models of deformation simulation
4.2 Self-consistent modeling of heterogeneous stress
4.2.1 Generalities for self-consistent model
4.2.2 Stress-strain behavior for single crystals
4.2.3 Stress-strain behavior for polycrystal
4.2.4 Self-consistent modelling of heterogeneous stress in two-phase materials
4.3 Model establishment
4.4 Simulations and discussion
4.4.1 Modeling of uniaxial compression
4.4.2 Modeling of uniaxial tensile
Chapter 5. Self-consistent modeling of rolling textures in duplex steel
5.1 Generalities for deformation(rolling) textures
5.1.1 Texture development in f.c.c. and b.c.c. metals
5.1.2 Texture development in multi-phase materials
5.2 Experimental results of rolling textures in duplex steel
5.3 Model establishment
5.4 Simulations and discussion
5.4.1 Simulations for duplex stainless steel
5.4.2 Simulations for low SFE f.c.c. metals
Chapter 6. Conclusions and recommendations
References
Acknowledgements
List of publications
Brief biography