Mechanical MetallurgyI Mechanical Fundamentals 1 Introduction 2 Stress and Strain Relationships for Elastic Behavior 3 Elements of the Theory of Plasticity II Metallurgical Fundamentals 4 Plastic Deformation of Single Crystals 5 Dislocation Theory 6 Strengthening Mechanisms 7 Fracture III Applications to Materials Testing 8 The Tension Test 9 The Hardness Test 10 The Torsion Test 11 Fracture Mechanics 12 Fatigue of Metals 13 Creep and Stress Rupture 14 Brittle Fracture and Impact Testing IV Plastic Forming of Metals 15 Fundamentals of Metalworking 16 Forging 17 Rolling of Metals 18 Extrusion 19 Drawing of Rods, Wires and Tubes 20 Sheet-Metal Forming 21 Maching of Metals Appendixes |
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Page 72
... stress - strain curve on unloading from a plastic strain will not be exactly linear and parallel to the elastic ... flow curve because it gives the stress required to cause the metal to flow plastically to any given strain . Many ...
... stress - strain curve on unloading from a plastic strain will not be exactly linear and parallel to the elastic ... flow curve because it gives the stress required to cause the metal to flow plastically to any given strain . Many ...
Page 301
... FLOW PROPERTIES The stress - strain curve and the flow and fracture properties derived from the tension test are strongly dependent on the temperature at which the ... Stress σ Yield strength , 1,000 psi 140 120 -196 THE TENSION TEST 301.
... FLOW PROPERTIES The stress - strain curve and the flow and fracture properties derived from the tension test are strongly dependent on the temperature at which the ... Stress σ Yield strength , 1,000 psi 140 120 -196 THE TENSION TEST 301.
Page 303
... flow stress depends on the dislocation structure existing at the time the flow stress is measured . Dislocation structure will change with tempera- ture , strain rate , and strain . One way to separate these effects is to evaluate Q by ...
... flow stress depends on the dislocation structure existing at the time the flow stress is measured . Dislocation structure will change with tempera- ture , strain rate , and strain . One way to separate these effects is to evaluate Q by ...
Contents
Introduction | 3 |
Stress and Strain Relationships for Elastic Behavior | 18 |
Metallurgical Fundamentals | 101 |
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alloy aluminum angle annealed ASTM atoms axis behavior billet brittle fracture Burgers vector cold-worked components compression constant crack creep cycles decrease determined diameter direction dislocation line ductile edge dislocation elastic elongation embrittlement energy engineering equation extrusion factor failure fatigue limit fibers Figure flow curve flow stress force forging friction given grain boundaries hot-working hydrostatic increase indentation lattice length load machining martensite material matrix maximum measured mechanical metallurgical Metals Park modulus necking notch occurs particles percent plane-strain plastic deformation plastic strain pressure produce properties ratio recrystallization reduction region residual stresses rolling screw dislocation shear stress sheet shown in Fig slip plane slip systems Society for Metals specimen steel strain hardening strain rate stress-strain curve structure surface temperature tensile strength tensile stress tension test tensor thickness tool torsion Trans usually velocity workpiece yield strength yield stress