Chapter 1 State of the Art of Ceramic Dies

1.1 Introduction

1.2 Composition,processing technology and mechanical property of ceramic die materials

1.2.1 Al2O3 based ceramics

1.2.2 ZrO2 based ceramics

1.2.3 Sialon ceramics

1.2.4 Si3N4 ceramics

1.2.5 Cermets

1.3 Engineering performance of ceramic dies

1.3.1 Drawing die

1.3.2 Extrusion die

1.3.3 Punching die

1.4 Surface modification techniques and their application in ceramic dies

1.4.1 Surface coating

1.4.2 Surface composite

1.4.3 Surface plating

1.5 Nanocomposite ceramics and the application in dies

1.5.1 Composition and mechanical property of nanocomposite ceramics

1.5.2 Application of nanocomposite ceramics in dies

References

Chapter 2 Optimum Design of Ceramic Die Materials with Computational Intelligence

2.1 Introduction

2.2 Optimization based on the BP algorithm

2.2.1 BP algorithm

2.2.2 Experimental data

2.2.3 Compositions optimization for ceramic die material

2.2.4 Optimization of hot pressing parameters

2.3 Optimization based on immune algorithm

2.3.1 Immune algorithm

2.3.2 Experimental data

2.3.3 Compositions optimization for cermet die material

2.4 Optimization with the hybrid GA-BP method

2.4.1 GA-BP Ⅰ algorithm

2.4.2 GA-BP Ⅱ algorithm

2.4.3 Compositions optimization for ceramic die material

2.4.4 Optimization of hot pressing parameters

2.5 Optimization with the hybrid IGA method

2.5.1 Process of IGA

2.5.2 Compositions optimization based on IGA

2.5.3 Optimization result

2.6 Optimization with the combined algorithm of BP,GA and IA

2.6.1 Experimental data

2.6.2 Optimization of the hot pressing process

2.6.3 Optimization of the flexural strength and hardness

References

Chapter 3 Optimum Design of the Structure of Combined Ceramic-steel Die

3.1 Introduction

3.2 Structural optimization design of the cold extrusion combined ceramic-steel die

3.2.1 Selection of component

3.2.2 Determination of parameters

3.2.3 Modeling

3.2.4 Orthogonal test

3.3 Thermal stress analysis of cold extrusion die

3.3.1 Process of finite element analysis

3.3.2 Distribution of temperature field

3.3.3 Distribution of stress field

3.3.4 Structural optimization

3.4 Thermal stress analysis of the combined die at the hot extruding

3.4.1 Distribution of temperature field

3.4.2 Distribution of stress field

3.5 Thermal stress analysis of the hot extrusion process

3.5.1 Model of the backward extrusion combined die

3.5.2 Distribution of temperature field

3.5.3 Distribution of stress field

3.5.4 Structural optimization

References

Chapter 4 Al2O3 Based Nano-miero Composite Ceramic Die Material

4.1 Material preparation

4.2 Test method

4.3 Mechanical property

4.3.1 Effects of the content of nano Ti(C,N)on the mechanical properties

4.3.2 Effects of the content of (Mo+Ni)on the mechanical properties

4.3.3 Effects of the hot pressing process on the mechanical properties

4.4 Microstructure

4.4.1 Effects of the content of nano Ti(C,N) on the microstructure

4.4.2 Effects of the content of(Mo+Ni)on the microstructure

4.4.3 Effects of the hot pressing process on the microstructure

4.5 Toughening and strengthening mechanisms

4.5.1 Grain fining effect

4.5.2 Intragranular structure effect

4.5.3 Changing of fracture mode

4.5.4 Crack deflection

4.5.5 Crack bridging

4.5.6 Crack branching

4.5.7 Grain pulling-out

References

Chapter 5 ZrO2 Based Nano-micro Composite Ceramic Die Materials

5.1 Introduction

5.2 ZrO2/Ti(C,N)nano-nano composite ceramic die material

5.2.1 Experiment

5.2.2 Effect of Y2O3 content on the mechanical properties

5.2.3 Effect of Y2O3 content on the microstructure

5.2.4 Toughening and strengthening mechanism

5.3 ZrO2/TiC micro-nano composite ceramic die materials

5.3.1 Experiment

5.3.2 Effect of TiC content on the composite material

5.3.3 Effect of Al2O3 content on the composite material

5.3.4 Effect of Y2O3 content on the composite material

5.3.5 Effects of CeO2 content on the composite material

5.3.6 Effects of hot pressing temperature on the composite material

5.3.7 Effects of holding time on the composite material

5.4 ZrO2/TiB2 nano-micro composite ceramic die material

5.4.1 Experiment

5.4.2 Components and mechanical property of ceramic material

5.4.3 Hot pressing parameters

References

Chapter 6 Ti(C,N)Based Nano-micro Composite Cermet Die Material

6.1 Material preparation

6.2 Test method

6.3 Mechanical property

6.3.1 Effects of the content of nano ZrO2 on the mechanical properties

6.3.2 Effects of the content of WC on the mechanical properties

6.3.3 Effects of the hot pressing process on the mechanical properties

6.4 Microstructure

6.5 Toughening mechanisms

6.5.1 Toughening by nano ZrO2 particles

6.5.2 Transformation toughening of nano ZrO2

6.5.3 Other toughening mechanisms

References

Chapter 7 Friction and Wear Behavior of Ceramic Die Materials

7.1 Introduction

7.2 Test method of friction and wear

7.3 Tribological behavior of Al2O3 based nano-micro composite ceramic die material

7.3.1 Friction behavior

7.3.2 Wear behavior

7.3.3 Wear mechanisms

7.4 Tribological behavior of ZrO2 based nano-micro composite ceramic die material

7.4.1 Friction and wear property of ZrO2/TiC/Al2O3

7.4.2 Friction and wear property of ZrO2/TiB2/Al2O3

7.5 Tribological behavior of Ti(C,N)based nano-micro composite cermet die material

7.5.1 Friction and wear behaviors

7.5.2 Friction resistance

7.5.3 Wear resistance

7.5.4 Wear mechanisms

References