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1 | (12) |
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3 | (1) |
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1.2 Friction Stir Welding |
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3 | (2) |
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1.3 Taxonomy for Friction Stir Welding and Processing |
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5 | (2) |
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1.4 Overall Applicability of Friction Stir Welding |
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7 | (1) |
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1.5 A Few Illustrative Implementation Examples |
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8 | (5) |
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11 | (2) |
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2 Fundamentals of the Friction Stir Process |
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13 | (46) |
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2.1 Overview of Macroscopic Processes During FSW |
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13 | (3) |
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2.2 Heat Generation During Friction Stir Process |
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16 | (13) |
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2.2.1 Heat Generation from Frictional Heating |
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18 | (6) |
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2.2.2 Heat Generation from Plastic Deformation |
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24 | (1) |
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2.2.3 Heat Transfer During Friction Stir Process |
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25 | (4) |
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2.3 Experimental Studies on Heat and Material Flow |
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29 | (7) |
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36 | (14) |
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2.4.1 Flow Zones Around the Tool Pin |
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40 | (1) |
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2.4.2 Strain and Strain Rate During FSW |
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41 | (5) |
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46 | (4) |
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2.5 Material Behavior and Constitutive Equations |
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50 | (3) |
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2.5.1 Determination of Constitutive Equations at High Strain Rates |
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52 | (1) |
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2.6 Forces Around the Pin and Shoulder |
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53 | (6) |
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55 | (4) |
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3 Fundamental Physical Metallurgy Background for FSW/P |
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59 | (36) |
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59 | (2) |
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3.2 Phase Transformation Basics |
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61 | (10) |
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3.2.1 Thermodynamics of Phase Formation |
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61 | (2) |
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3.2.2 Phase Nucleation Kinetics |
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63 | (3) |
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3.2.3 Phase Growth Kinetics |
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66 | (4) |
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3.2.4 Overall Transformation Kinetics |
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70 | (1) |
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3.3 Recovery, Recrystallization and Grain Growth |
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71 | (8) |
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73 | (2) |
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3.3.2 Static Recrystallization |
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75 | (1) |
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76 | (1) |
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3.3.4 Dynamic Recrystallization |
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77 | (1) |
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78 | (1) |
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3.4 Precipitation Transformations |
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79 | (4) |
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3.5 Eutectoid Transformations |
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83 | (2) |
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3.6 Widmanstatten Structures (Adapted from Porter and Easterling (2004)) |
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85 | (1) |
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3.7 Martensitic Transformation |
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86 | (2) |
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3.8 Physical Simulation of FSW |
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88 | (1) |
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3.9 Microstructural Evolution During Friction Stir Welding |
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89 | (6) |
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93 | (2) |
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4 Friction Stir Welding Configurations and Tool Selection |
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95 | (14) |
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95 | (4) |
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4.2 Tool Material Selection |
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99 | (2) |
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101 | (6) |
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4.4 A Conceptual Process Map with Microstructural Domains |
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107 | (2) |
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107 | (1) |
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108 | (1) |
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109 | (40) |
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5.1 Al Alloys: Background |
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109 | (3) |
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5.2 Friction Stir Process of Aluminum Alloys |
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112 | (2) |
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5.2.1 Friction Stir Welding Tool Design |
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112 | (2) |
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5.2.2 FSW Operational Parameters |
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114 | (1) |
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5.3 Microstructure Evolution During FSW |
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114 | (7) |
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114 | (2) |
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116 | (1) |
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117 | (2) |
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5.3.4 Cast Al-Si Mg Alloys |
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119 | (1) |
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120 | (1) |
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5.4 Mechanical Properties After FSW |
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121 | (18) |
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121 | (5) |
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126 | (3) |
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129 | (3) |
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5.4.4 Cast Al-Si-Mg Alloy |
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132 | (1) |
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133 | (6) |
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5.5 Microstructure and Mechanical Properties of Friction Stir Spot Welds |
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139 | (4) |
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5.5.1 Macro/Microstructure |
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139 | (4) |
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5.6 Corrosion in FSW Welds |
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143 | (6) |
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146 | (3) |
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6 Friction Stir Welding of Magnesium Alloys |
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149 | (40) |
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6.1 Magnesium Alloys in Twenty-First Century |
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149 | (2) |
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6.2 Classification of Magnesium Alloys |
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151 | (2) |
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6.3 Welding of Magnesium Alloy |
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153 | (36) |
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6.3.1 Conventional Route of Welding Mg Alloys |
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154 | (1) |
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6.3.2 Friction Stir Welding of Magnesium Alloys |
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155 | (7) |
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6.3.3 Evolution of Microstructure |
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162 | (10) |
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172 | (12) |
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184 | (5) |
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7 Friction Stir Welding of High Temperature Alloys |
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189 | (48) |
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190 | (18) |
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7.1.1 Introduction and Basic Physical Metallurgy |
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190 | (5) |
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7.1.2 Tool Materials and Related Issue |
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195 | (1) |
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7.1.3 Mechanical Properties of Titanium Alloys |
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195 | (4) |
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7.1.4 Friction Stir Welding of Titanium Alloys |
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199 | (9) |
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208 | (29) |
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7.2.1 Introduction and Basic Physical Metallurgy of Steels |
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208 | (7) |
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7.2.2 Tool Materials and Related Issues |
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215 | (2) |
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7.2.3 Mechanical Properties of Steel |
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217 | (2) |
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7.2.4 Friction Stir Welding of Steels |
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219 | (15) |
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234 | (3) |
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8 Dissimilar Metal Friction Stir Welding |
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237 | (22) |
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237 | (1) |
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8.2 Issues with Dissimilar Metal Welding |
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237 | (3) |
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8.3 Friction Stir Welding of Dissimilar Metals |
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240 | (19) |
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8.3.1 Friction Stir Welding of Different Alloys with Similar Base Metals and Melting Points |
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240 | (3) |
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8.3.2 Friction Stir Welding of Different Alloys Having Dissimilar Base Metals and Similar Melting Point |
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243 | (8) |
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8.3.3 Dissimilar Metals Having Widely Differing Melting Point |
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251 | (6) |
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257 | (2) |
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9 Friction Stir Processing |
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259 | (38) |
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9.1 Friction Stir Processing for Superplastic Forming |
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261 | (8) |
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9.1.1 Constitutive Relationship and Microstructural Requirements for Superplasticity |
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261 | (1) |
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9.1.2 Superplastic Flow in Friction Stir Processed Materials |
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262 | (2) |
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9.1.3 Friction Stir Processing as a Technology Enabler for New Concepts |
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264 | (5) |
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9.2 Enhanced Room Temperature Formability via FSP |
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269 | (3) |
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9.3 Friction Stir Processing of Surface Composites and Powder Processing: Approach for Stiffness Limiting Design |
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272 | (7) |
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9.3.1 Localized Surface Modification |
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273 | (1) |
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9.3.2 Processing of Powder Metallurgy Alloys |
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274 | (2) |
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9.3.3 Synergistic Design: Concept of Embedded Structures for Higher Efficiency |
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276 | (3) |
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9.4 Friction Stir Casting Modification: Examples of Approaches for Strength Limiting, Fatigue Limiting and Toughness Limiting Designs |
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279 | (9) |
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9.4.1 Microstructural Refinement |
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279 | (3) |
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9.4.2 Influence on Mechanical Properties |
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282 | (6) |
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9.5 Friction Stir Channeling (FSC) |
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288 | (3) |
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9.6 Ultrafine Grained Materials via Friction Stir Processing |
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291 | (6) |
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294 | (3) |
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10 Residual Stresses and Mitigation Strategies |
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297 | (30) |
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297 | (4) |
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297 | (1) |
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10.1.2 Causes of Residual Stress |
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297 | (1) |
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10.1.3 Types of Residual Stresses |
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298 | (1) |
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10.1.4 Implications of Residual Stresses |
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299 | (2) |
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10.2 Residual Stresses in Welding |
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301 | (4) |
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10.2.1 Residual Stresses in Friction Stir Welding |
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302 | (3) |
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10.3 Measurement of Residual Stresses |
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305 | (5) |
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306 | (1) |
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307 | (2) |
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10.3.3 Role of Sample Size in the Measurement of Residual Stresses |
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309 | (1) |
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10.4 Effect of Residual Stress on Properties |
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310 | (1) |
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10.5 Dependence of Residual Stresses on Friction Stir Welding Parameters |
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311 | (3) |
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10.6 Understanding Development of Residual Stresses in Friction Stir Welding |
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314 | (2) |
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10.7 Difference Between Residual Stress Generation in Friction Stir Welding and Fusion Welding |
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316 | (1) |
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10.8 Mitigation of Residual Stresses |
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317 | (3) |
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317 | (1) |
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10.8.2 Mechanical Tensioning |
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318 | (1) |
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319 | (1) |
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10.9 Modeling and Simulation of Residual Stresses in Friction Stir Welding |
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320 | (7) |
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325 | (2) |
Index |
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327 | |