scholarly journals Mechanisms of Plastic Deformation in Polymer Single Crystals

Sen-ito Kogyo ◽  
1972 ◽  
Vol 5 (10) ◽  
pp. 451-458
Author(s):  
KEIZO MIYASAKA
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Mechanisms Of Plastic Deformation

Plastic Deformation of Approximants: Dislocations vs. Phason Lines

1998 ◽  
Vol 553 ◽  
Author(s):  
H. Klein ◽  
M. Feuerbacher ◽  
P. Schall ◽  
K. Urban
Keyword(s):  
Plastic Deformation ◽  
High Temperature ◽  
Single Crystals ◽  
Periodic Lattice ◽  
Length Scale ◽  
Relative Importance ◽  
Line Lattice ◽  
Burgers Vector ◽  
Mechanisms Of Plastic Deformation

AbstractDeformation experiments were performed on single crystals of the ξ-AIPdMn approximant in bending geometry at high temperature. Two different mechanisms of plastic deformation are shown to exist in this phase: one based on dislocations and another novel mechanism based on the motion of phason lines. Burgers vector and line directions of dislocations were determined. Phason lines are shown to build a periodic lattice. The interaction of a dislocation with the phason line lattice results in dislocations on another length scale. This meta-dislocation in the periodic phason line lattice has a Burgers vector of magnitude 165 Å. The relative importance of phason lines and dislocations for the plastic deformation is discussed as a function of the orientation of the sample with respect to the bending geometry.

Thermally activated mechanisms of plastic deformation of single crystals of the disordered alloy Ni3Fe

1978 ◽  
Vol 21 (7) ◽  
pp. 929-932
Author(s):  
V. V. Starenchenko ◽  
V. S. Kobytev ◽  
�. V. Kozlov ◽  
L. E. Popov
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Thermally Activated ◽  
Alloy Ni3fe ◽  
Mechanisms Of Plastic Deformation ◽  
Disordered Alloy

scholarly journals X-Ray Study of Rolled Single Crystals of Ti–48%Ni–2%Fe Alloy. Part I: Texture Development and Mechanisms of Plastic Deformation

1998 ◽  
Vol 31 (1-2) ◽  
pp. 53-84 ◽  
Author(s):  
Yu. Perlovich ◽  
H. J. Bunge ◽  
M. Isaenkova ◽  
V. Fesenko ◽  
R. Rustamov
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Texture Development ◽  
X Ray ◽  
Combined Action ◽  
Alloy Part ◽  
First Time ◽  
Mechanisms Of Plastic Deformation

Rolled single crystals of the alloy Ti–48%Ni–2%Fe were studied by methods of X-ray diffractometry using a PSD-technique. Single crystals, consisting of the phase B2, were rolled in 11 initial orientations at 350°C with deformation degrees up to ~80%. Texture development in single crystals under rolling was analyzed to determine the acting mechanisms of plastic deformation. Three stable orientations of single crystals were found: {011}〈011〉 ,{111}〈011〉 and {111}〈112〉. It was shown on the basis of texture data, that Ti–Ni single crystals deform by means of combined action of slip in the systems {011}〈001〉 and twinning. For the first time, along with twinning in the known systems {114}〈221〉 , twinning in the systems {118}〈441〉 was revealed. A number of concrete cases was considered to refine the contributions of slip and twinning into reorientation of single crystals depending on their initial orientations as well as to ascertain the interrelation of different mechanisms.

Mechanisms of plastic deformation in [1¯11]-oriented single crystals of FeNiMnCrCo high entropy alloy

2016 ◽  
Author(s):  
Irina Kireeva ◽  
Yurii Chumlyakov ◽  
Zinaida Pobedennaya ◽  
Dmitrii Kuksgauzen ◽  
Ibrahim Karaman ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Mechanisms Of Plastic Deformation

Investigation of shock-wave deformation history from recovered structure

1986 ◽  
Vol 44 ◽  
pp. 434-435
Author(s):  
M.A. Mogilevsky ◽  
L.S. Bushnev
Keyword(s):  
Shock Wave ◽  
Plastic Deformation ◽  
Dislocation Density ◽  
Shock Waves ◽  
Shock Front ◽  
Single Crystals ◽  
Residual Deformation ◽  
Deformation Structure ◽  
Deformation History ◽  
Deformation Velocity

Single crystals of Al were loaded by 15 to 40 GPa shock waves at 77 K with a pulse duration of 1.0 to 0.5 μs and a residual deformation of ∼1%. The analysis of deformation structure peculiarities allows the deformation history to be re-established.After a 20 to 40 GPa loading the dislocation density in the recovered samples was about 1010 cm-2. By measuring the thickness of the 40 GPa shock front in Al, a plastic deformation velocity of 1.07 x 108 s-1 is obtained, from where the moving dislocation density at the front is 7 x 1010 cm-2. A very small part of dislocations moves during the whole time of compression, i.e. a total dislocation density at the front must be in excess of this value by one or two orders. Consequently, due to extremely high stresses, at the front there exists a very unstable structure which is rearranged later with a noticeable decrease in dislocation density.

Effect of orientation on the plastic deformation of aluminum single crystals and bicrystals

JOM ◽  
1957 ◽  
Vol 9 (1) ◽  
pp. 136-140 ◽  
Author(s):  
R. S. Davis ◽  
R. L. Fleischer ◽  
J. D. Livingston ◽  
Bruce Chalmers
Keyword(s):  
Plastic Deformation ◽  
Single Crystals

Plastic Deformation of α‐Arsenic Single Crystals

1968 ◽  
Vol 39 (11) ◽  
pp. 5145-5149 ◽  
Author(s):  
M. N. Shetty ◽  
J. B. Taylor
Keyword(s):  
Plastic Deformation ◽  
Single Crystals
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