先进陶瓷模具：设计、制造与性能PDF|Epub|txt|kindle电子书版本网盘下载

先进陶瓷模具：设计、制造与性能PDF格式电子书版下载

注意：本站所有压缩包均有解压码： 点击下载压缩包解压工具

Chapter 1 State of the Art of Ceramic Dies1

1.1 Introduction1

1.2 Composition,processing technology and mechanical property of ceramic die materials2

1.2.1 Al2O3 based ceramics2

1.2.2 ZrO2 based ceramics3

1.2.3 Sialon ceramics6

1.2.4 Si3N4 ceramics7

1.2.5 Cermets7

1.3 Engineering performance of ceramic dies8

1.3.1 Drawing die8

1.3.2 Extrusion die10

1.3.3 Punching die12

1.4 Surface modification techniques and their application in ceramic dies13

1.4.1 Surface coating13

1.4.2 Surface composite15

1.4.3 Surface plating16

1.5 Nanocomposite ceramics and the application in dies17

1.5.1 Composition and mechanical property of nanocomposite ceramics17

1.5.2 Application of nanocomposite ceramics in dies20

References20

Chapter 2 Optimum Design of Ceramic Die Materials with Computational Intelligence23

2.1 Introduction23

2.2 Optimization based on the BP algorithm25

2.2.1 BP algorithm26

2.2.2 Experimental data27

2.2.3 Compositions optimization for ceramic die material28

2.2.4 Optimization of hot pressing parameters31

2.3 Optimization based on immune algorithm34

2.3.1 Immune algorithm34

2.3.2 Experimental data37

2.3.3 Compositions optimization for cermet die material37

2.4 Optimization with the hybrid GA-BP method40

2.4.1 GA-BP Ⅰ algorithm40

2.4.2 GA-BP Ⅱ algorithm40

2.4.3 Compositions optimization for ceramic die material43

2.4.4 Optimization of hot pressing parameters49

2.5 Optimization with the hybrid IGA method55

2.5.1 Process of IGA55

2.5.2 Compositions optimization based on IGA56

2.5.3 Optimization result58

2.6 Optimization with the combined algorithm of BP,GA and IA59

2.6.1 Experimental data59

2.6.2 Optimization of the hot pressing process60

2.6.3 Optimization of the flexural strength and hardness63

References65

Chapter 3 Optimum Design of the Structure of Combined Ceramic-steel Die69

3.1 Introduction69

3.2 Structural optimization design of the cold extrusion combined ceramic-steel die70

3.2.1 Selection of component71

3.2.2 Determination of parameters71

3.2.3 Modeling74

3.2.4 Orthogonal test74

3.3 Thermal stress analysis of cold extrusion die80

3.3.1 Process of finite element analysis81

3.3.2 Distribution of temperature field82

3.3.3 Distribution of stress field83

3.3.4 Structural optimization86

3.4 Thermal stress analysis of the combined die at the hot extruding90

3.4.1 Distribution of temperature field91

3.4.2 Distribution of stress field92

3.5 Thermal stress analysis of the hot extrusion process95

3.5.1 Model of the backward extrusion combined die95

3.5.2 Distribution of temperature field95

3.5.3 Distribution of stress field96

3.5.4 Structural optimization97

References98

Chapter 4 Al2O3 Based Nano-miero Composite Ceramic Die Material100

4.1 Material preparation100

4.2 Test method101

4.3 Mechanical property102

4.3.1 Effects of the content of nano Ti(C,N)on the mechanical properties102

4.3.2 Effects of the content of (Mo+Ni)on the mechanical properties103

4.3.3 Effects of the hot pressing process on the mechanical properties104

4.4 Microstructure106

4.4.1 Effects of the content of nano Ti(C,N) on the microstructure106

4.4.2 Effects of the content of(Mo+Ni)on the microstructure109

4.4.3 Effects of the hot pressing process on the microstructure110

4.5 Toughening and strengthening mechanisms113

4.5.1 Grain fining effect113

4.5.2 Intragranular structure effect113

4.5.3 Changing of fracture mode114

4.5.4 Crack deflection115

4.5.5 Crack bridging115

4.5.6 Crack branching115

4.5.7 Grain pulling-out116

References117

Chapter 5 ZrO2 Based Nano-micro Composite Ceramic Die Materials119

5.1 Introduction119

5.2 ZrO2/Ti(C,N)nano-nano composite ceramic die material121

5.2.1 Experiment122

5.2.2 Effect of Y2O3 content on the mechanical properties122

5.2.3 Effect of Y2O3 content on the microstructure124

5.2.4 Toughening and strengthening mechanism126

5.3 ZrO2/TiC micro-nano composite ceramic die materials132

5.3.1 Experiment132

5.3.2 Effect of TiC content on the composite material134

5.3.3 Effect of Al2O3 content on the composite material136

5.3.4 Effect of Y2O3 content on the composite material137

5.3.5 Effects of CeO2 content on the composite material139

5.3.6 Effects of hot pressing temperature on the composite material141

5.3.7 Effects of holding time on the composite material143

5.4 ZrO2/TiB2 nano-micro composite ceramic die material145

5.4.1 Experiment145

5.4.2 Components and mechanical property of ceramic material148

5.4.3 Hot pressing parameters150

References156

Chapter 6 Ti(C,N)Based Nano-micro Composite Cermet Die Material159

6.1 Material preparation159

6.2 Test method160

6.3 Mechanical property160

6.3.1 Effects of the content of nano ZrO2 on the mechanical properties160

6.3.2 Effects of the content of WC on the mechanical properties162

6.3.3 Effects of the hot pressing process on the mechanical properties163

6.4 Microstructure165

6.5 Toughening mechanisms168

6.5.1 Toughening by nano ZrO2 particles168

6.5.2 Transformation toughening of nano ZrO2169

6.5.3 Other toughening mechanisms170

References170

Chapter 7 Friction and Wear Behavior of Ceramic Die Materials172

7.1 Introduction172

7.2 Test method of friction and wear172

7.3 Tribological behavior of Al2O3 based nano-micro composite ceramic die material173

7.3.1 Friction behavior173

7.3.2 Wear behavior175

7.3.3 Wear mechanisms176

7.4 Tribological behavior of ZrO2 based nano-micro composite ceramic die material178

7.4.1 Friction and wear property of ZrO2/TiC/Al2O3178

7.4.2 Friction and wear property of ZrO2/TiB2/Al2O3184

7.5 Tribological behavior of Ti(C,N)based nano-micro composite cermet die material187

7.5.1 Friction and wear behaviors187

7.5.2 Friction resistance188

7.5.3 Wear resistance189

7.5.4 Wear mechanisms190

References192