Mechanical Metallurgy |
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Page 265
... martensitic structure may , in many cases , be commercially 70 Rockwell C hardness 10 50 60 09 30 -B A 99.9 % martensite B - 95 % martensite C - 90 % martensite D - 80 % martensite E - 50 % martensite 201 0.1 0.2 0.3 0.4 0.5 0.6 Carbon ...
... martensitic structure may , in many cases , be commercially 70 Rockwell C hardness 10 50 60 09 30 -B A 99.9 % martensite B - 95 % martensite C - 90 % martensite D - 80 % martensite E - 50 % martensite 201 0.1 0.2 0.3 0.4 0.5 0.6 Carbon ...
Page 413
... martensite whenever the local temperature of the bar reaches the M , temperature . Since an increase in volume accompanies this transformation , the metal expands as the martensite reaction proceeds on cooling from the M , to M ...
... martensite whenever the local temperature of the bar reaches the M , temperature . Since an increase in volume accompanies this transformation , the metal expands as the martensite reaction proceeds on cooling from the M , to M ...
Page 415
... martensite . The reasons for tempering hardened steel are to relieve the high micro- stresses in the martensite and to reduce the level of macro residual stress . Although tempering generally lowers the level of residual stress , there ...
... martensite . The reasons for tempering hardened steel are to relieve the high micro- stresses in the martensite and to reduce the level of macro residual stress . Although tempering generally lowers the level of residual stress , there ...
Contents
Introduction 3 35678OORE | 3 |
Stress and Strain Relationships for Elastic Behavior | 17 |
Elements of the Theory of Plasticity | 54 |
Copyright | |
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alloys aluminum angle annealed 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 reduction of area region relationship residual stresses rolling screw dislocations shear stress sheet 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 yield strength yield stress στ