Mechanical Behavior of Materials |
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Page 328
... superplastic deformation , in which grains remain approximately equiaxed . For example , at superplastic strains on the order of several hundred per- cent , grain aspect ratios seldom exceed 1.5 and are typically less than this ...
... superplastic deformation , in which grains remain approximately equiaxed . For example , at superplastic strains on the order of several hundred per- cent , grain aspect ratios seldom exceed 1.5 and are typically less than this ...
Page 338
... superplastic forming . On the other hand , moderate volume productions are feasible . In shaping of complex parts , superplastic forming mini- mizes material waste compared to conventional ( e.g. , machining ) operations . Thus , ...
... superplastic forming . On the other hand , moderate volume productions are feasible . In shaping of complex parts , superplastic forming mini- mizes material waste compared to conventional ( e.g. , machining ) operations . Thus , ...
Page 555
... superplastic behavior . As can be seen in Fig . 11.19 , fracture surfaces of these less ductile materials are macroscopically flat ; indeed , at this level they have a " brittle " appearance . However , when observed at higher ...
... superplastic behavior . As can be seen in Fig . 11.19 , fracture surfaces of these less ductile materials are macroscopically flat ; indeed , at this level they have a " brittle " appearance . However , when observed at higher ...
Contents
Overview of Mechanical Behavior | 1 |
Toughening Mechanisms and the Physics of Fracture | 10 |
A The Tension Test B StrainRate Sensitivity C Yielding Under | 28 |
Copyright | |
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alloys applied stress behavior bonding brittle Burgers vector ceramics Chap CHAPTER Coble creep composite crack growth crack propagation crack tip creep fracture creep rate Crystalline Materials cubic curve cyclical decreases diffusional discussed dislocation density dislocation line dislocation motion displacement ductile ductile fracture edge dislocation embrittlement energy equation example fatigue fiber Figure flow stress Fracture Mechanics fracture toughness glass grain boundaries hardening high-temperature increases initial length linear elastic loading low-temperature martensite material's matrix mechanism map microscopic MN/mē Mode modulus nucleation obstacles particle phase plastic deformation plastic flow plastic strain polycrystalline polycrystals polymers precipitation Prob ratio region result Schematic screw dislocation SECTION shear stress shown in Fig single crystal slip direction slip plane slip systems solids solute atom steel strain rate strengthening stress levels stress-strain structure superplastic surface takes place temperature tensile strength tensile stress tion toughening transition viscoelastic volume fraction yield strength