Results 261 to 270 of about 553,835 (300)

Plastic Deformation Mechanisms

2019
This chapter begins with an introduction of the crystalline structure and crystalline defects of solid materials and the definition of hot and cold work. Then, a full description of the dislocation slip mechanism is presented, including an explanation of the direct observation of dislocations by transmission electron microscopy.
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Mechanically deformed crumpled surfaces

Journal of Physics D: Applied Physics, 1989
Crumpled surfaces (CS) obtained from random and irreversible compactification of aluminium foils are low-density fractal structures which become increasingly easy to deform as their size increases. The authors study the deformation of these objects when submitted to mechanical forces.
M A F Gomes, T I Jyh, T I Ren, I M Rodrigues, C B S Furtado   +4 more
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Deformation Mechanisms II: Miscellaneous

1993
Beside the gliding motion of dislocations, plasticity can be induced by a variety of other deformation mechanisms, such as deformation twinning, shear banding, grain boundary sliding and phase transformation. These deformation mechanisms will be described herein to give a more complete picture of plasticity.
Wei Yang, W. B. Lee
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Deformation Mechanisms in Superplasticity

Annual Review of Materials Science, 1979
The phenomenon of micro grain superplasticity, in which metals and alloys deform extensively at elevated temperatures under small stresses without risk of rupture, has been well documented over the past decade. Our under­ standing of the rate-controlling mechanisms for superplastic deformation processes in terms of range of stress, temperature, and ...
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Deformation mechanisms in polytetrafluoroethylene

Polymer, 1975
Abstract The deformation of isotropic and oriented polytetrafluoroethylene has been examined by wide-angle X-ray diffraction and electron microscopy. The deformation mechanisms which have been found to operate are 1010〈0001〉 chain direction slip and 1010〈1210〉 transverse slip.
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Nanoscale Deformation Mechanisms in Collagen

2008
The mechanical properties of collagen Type I tissues are, like many biological connective tissues, crucially dependent on the hierarchical architecture at the nanometer and micron length scale. Triple helical collagen molecules aggregate into ordered fibrils of ∼ 100–200,nm diameter, which in turn can form parallel-fibered fiber bundles or lamellae at ...
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The microstructure evolution and deformation mechanism in a casting AM80 magnesium alloy under ultra-high strain rate loading

Journal of Magnesium and Alloys, 2022
Pengcheng Guo, Xiao Liu
exaly  

Clarification of the effect of temperature and strain rate on workpiece deformation behaviour in metal forming processes

International Journal of Machine Tools and Manufacture, 2021
Wenbin Zhou, Jianguo Lin, Trevor A Dean
exaly  

Deformation Mechanisms

1998
C. W. Passchier, R. A. J. Trouw
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Deformation Mechanisms: Crystal Plasticity

2012
The deformation mechanisms of the greatest importance in the intra granular plastic deformation of crystalline materials are slip and twinning. In these mechanisms, the strain or change of shape is achieved by the relative movement of blocks of atoms rather than by the more or less independent movement of individual atoms that characterizes the atomic ...
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