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 112
... vacancy . Atoms are added to the extra plane for negative climb by the diffusion of an atom from the surrounding crystal , creating a vacancy . Since movement by climb is diffusion- controlled , motion is much slower than in glide and ...
... vacancy . Atoms are added to the extra plane for negative climb by the diffusion of an atom from the surrounding crystal , creating a vacancy . Since movement by climb is diffusion- controlled , motion is much slower than in glide and ...
Page 169
... vacancy to edge disloca- tion ; ( b ) dislocation climbs up one lattice spacing . Dislocation climb occurs by the diffusion of vacancies or interstitials to or away from the site of the dislocation . Since climb is diffusion ...
... vacancy to edge disloca- tion ; ( b ) dislocation climbs up one lattice spacing . Dislocation climb occurs by the diffusion of vacancies or interstitials to or away from the site of the dislocation . Since climb is diffusion ...
Page 174
... vacancy . U = aGb3 ( 5-26 ) where a1≈ 1.0 for an interstitial atom and 0.2 for a vacancy . The work done by the applied stress in moving the jogs forward one atomic spacing by the formation of vacancies or interstitials is W = ( Tbl ) ...
... vacancy . U = aGb3 ( 5-26 ) where a1≈ 1.0 for an interstitial atom and 0.2 for a vacancy . The work done by the applied stress in moving the jogs forward one atomic spacing by the formation of vacancies or interstitials is W = ( Tbl ) ...
Contents
Introduction | 3 |
Stress and Strain Relationships for Elastic Behavior | 18 |
Metallurgical Fundamentals | 101 |
Copyright | |
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alloy aluminum angle annealed ASME 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 tensor thickness tool torsion Trans usually velocity workpiece yield strength yield stress