Mechanical MetallurgyThis bestselling metallurgy text examines the behaviour of materials under stress and their reaction to a variety of hostile environments. It covers the entire scope of mechanical metallurgy, from an understanding of the continuum description of stress and strain, through crystalline and defect mechanisms of flow and fracture, and on to a consideration of major mechanical property tests and the basic metalworking process. It has been updated throughout, and optimised for metric (SI) units . End-of-chapter study questions are included. |
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Page 297
... strain rate . The true strain rate è is given by έ = dε dt d [ ln ( L / Lo ) ] 1 dL = = = dt ע L dt L ( 8-37 ) The true strain rate is related to the conventional strain rate by the following equation : V Lo de 1 de έ = - = = ё = L L dt ...
... strain rate . The true strain rate è is given by έ = dε dt d [ ln ( L / Lo ) ] 1 dL = = = dt ע L dt L ( 8-37 ) The true strain rate is related to the conventional strain rate by the following equation : V Lo de 1 de έ = - = = ё = L L dt ...
Page 496
... RATES OF LOADING The flow and fracture of metals generally is found to be very sensitive to the rate of deformation . The spectrum of available strain rates is shown in Fig . 14-21 . Also shown is a characteristic time , corresponding ...
... RATES OF LOADING The flow and fracture of metals generally is found to be very sensitive to the rate of deformation . The spectrum of available strain rates is shown in Fig . 14-21 . Also shown is a characteristic time , corresponding ...
Page 532
... strain rate beyond the usual metalworking range until a critical strain rate is reached where the ductility falls off sharply . Explosive forming has developed as a useful process for producing large parts in limited numbers where the ...
... strain rate beyond the usual metalworking range until a critical strain rate is reached where the ductility falls off sharply . Explosive forming has developed as a useful process for producing large parts in limited numbers where the ...
Contents
Introduction | 3 |
Stress and Strain Relationships for Elastic Behavior | 17 |
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 York