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 438
... CREEP CURVE The progressive deformation of a material at constant stress is called creep . To determine the engineering creep curve of a metal , a constant load is applied to a tensile specimen maintained at a constant temperature , and ...
... CREEP CURVE The progressive deformation of a material at constant stress is called creep . To determine the engineering creep curve of a metal , a constant load is applied to a tensile specimen maintained at a constant temperature , and ...
Page 441
... creep curves at consant temperature . family of curves is obtained for creep at constant stress for different temperatures . The higher the temperature , the greater the creep rate . The minimum creep rate is the most important design ...
... creep curves at consant temperature . family of curves is obtained for creep at constant stress for different temperatures . The higher the temperature , the greater the creep rate . The minimum creep rate is the most important design ...
Page 459
... CREEP DATA Although much progress has been made on the theory of creep , our understand- ing has not advanced to the point where creep and stress - rupture behavior can be predicted reliably from theoretical models . For design purposes ...
... CREEP DATA Although much progress has been made on the theory of creep , our understand- ing has not advanced to the point where creep and stress - rupture behavior can be predicted reliably from theoretical models . For design purposes ...
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