Mechanical Behavior of Materials |
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Page 140
... Region I to Region II , * effectively becomes zero . is illustrated schematically in Fig . 4.2 . As shown there , three temperature regions can be identified . At the highest temperatures ( Region III ) where typically T≥0.77m ( Tm is ...
... Region I to Region II , * effectively becomes zero . is illustrated schematically in Fig . 4.2 . As shown there , three temperature regions can be identified . At the highest temperatures ( Region III ) where typically T≥0.77m ( Tm is ...
Page 301
... Region I Region II In & Region III Decreasing grain size or increasing temperature ( b ) Decreasing grain size or increasing temperature A Region I d In o d In & Region II Region III In & ( a ) The low - stress - strain rate behavior of ...
... Region I Region II In & Region III Decreasing grain size or increasing temperature ( b ) Decreasing grain size or increasing temperature A Region I d In o d In & Region II Region III In & ( a ) The low - stress - strain rate behavior of ...
Page 302
... Region III . Rather , superplasticity is found only in Region II , a transition region in which the stress increases rapidly with increasing strain rate . As shown in Fig . 7.25 , the superplastic Region II is displaced to higher strain ...
... Region III . Rather , superplasticity is found only in Region II , a transition region in which the stress increases rapidly with increasing strain rate . As shown in Fig . 7.25 , the superplastic Region II is displaced to higher strain ...
Contents
B Creep Fracture | 37 |
3 | 76 |
Plastic Deformation in Single and Polycrystalline | 137 |
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alloys applied approximately associated atomic behavior bonding brittle caused composite considerations considered containing crack crack tip craze creep creep rate critical crystal crystalline curve cyclical decreases deformation depends described determined developed diffusion direction discussed dislocation displacement distance ductile effect elastic embrittlement energy example extension failure fatigue fiber FIGURE flow force fraction fracture function given glass grain boundaries greater growth hardening high-temperature higher illustrated increases initial leads length less load material matrix maximum mechanism metals microscopic Mode neck normal nucleation observed obstacles obtained occurs particle phase plane plastic plastic deformation polymers produce propagation reduced region relative resistance result schematically shear shown in Fig shows similar slip solid Stage steel strain rate strength strengthening structure surface takes place temperature tensile toughness transition typically values variation void volume yield