MECHANICAL METALLURGY |
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Page 338
ing an initial rapid elongation of the specimen, t0, the creep rate decreases with
time, then reaches essentially a steady state in which the creep rate changes little
with time, and finally the creep rate increases rapidly with time until fracture ...
ing an initial rapid elongation of the specimen, t0, the creep rate decreases with
time, then reaches essentially a steady state in which the creep rate changes little
with time, and finally the creep rate increases rapidly with time until fracture ...
Page 340
This type of creep curve starts at the origin of coordinates. The first stage of creep,
known as primary creep, represents a region of decreasing creep rate. Primary
creep is a period of predominantly transient creep in which the creep resistance ...
This type of creep curve starts at the origin of coordinates. The first stage of creep,
known as primary creep, represents a region of decreasing creep rate. Primary
creep is a period of predominantly transient creep in which the creep resistance ...
Page 355
have been collected and published by the ASTM1 and by the producers of high-
temperature alloys. A common method of presenting creep data is to plot the
logarithm of the stress against the logarithm of the minimum creep rate (Fig. 13-
10).
have been collected and published by the ASTM1 and by the producers of high-
temperature alloys. A common method of presenting creep data is to plot the
logarithm of the stress against the logarithm of the minimum creep rate (Fig. 13-
10).
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Contents
Stress and Strain Relationships for Elastic Behavior | 17 |
Elements of the Theory of Plasticity | 54 |
Plastic Deformation of Single Crystals | 81 |
Copyright | |
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Common terms and phrases
alloys aluminum angle annealing ASTM axis behavior bending billet brittle fracture Burgers vector cent compressive constant crack creep rate decrease determined diameter direction dislocation line distribution drawing ductile edge dislocation effect elastic elongation equation extrusion factor failure fatigue limit flow curve flow stress force forging forming friction given grain boundaries hardness high-temperature increase indentation lattice length load longitudinal mandrel martensite material maximum measured mechanical metallurgical Metals Park method modulus notch obtained occurs orientation particles plastic deformation pressure principal stresses Proc produced properties punch quenched radius ratio recrystallization region relationship residual stresses rolling screw dislocations shear stress sheet shown in Fig shows single crystals slip plane Society for Metals specimen steel strain energy strain hardening strain rate stress-strain curve structure surface temper tensile strength tensile stress theory thickness tion torsion Trans transition temperature tube usually yield point yield strength yield stress