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 150
... BURGERS VECTOR AND THE DISLOCATION LOOP The Burgers vector b is the vector which defines the magnitude and direction of slip . Therefore , it is the most characteristic feature of a dislocation . It has already been shown that for a ...
... BURGERS VECTOR AND THE DISLOCATION LOOP The Burgers vector b is the vector which defines the magnitude and direction of slip . Therefore , it is the most characteristic feature of a dislocation . It has already been shown that for a ...
Page 153
... Burgers vectors b1 and b2 combine to produce a resultant dislocation b . The vector b3 is given by the vector sum of b1 and b2 . Since the periodic force field of the crystal lattice requires that atoms must move from one equilibrium ...
... Burgers vectors b1 and b2 combine to produce a resultant dislocation b . The vector b3 is given by the vector sum of b1 and b2 . Since the periodic force field of the crystal lattice requires that atoms must move from one equilibrium ...
Page 170
... Burgers vectors at right angles to each other is illustrated in Fig . 5-19 . An edge dislocation XY with Burgers vector b1 is moving on plane Pyy . It cuts through dislocation AD , with Burgers vector b2 , lying on plane PAD . The ...
... Burgers vectors at right angles to each other is illustrated in Fig . 5-19 . An edge dislocation XY with Burgers vector b1 is moving on plane Pyy . It cuts through dislocation AD , with Burgers vector b2 , lying on plane PAD . The ...
Contents
Introduction | 3 |
Stress and Strain Relationships for Elastic Behavior | 18 |
Metallurgical Fundamentals | 101 |
Copyright | |
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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