Nonlinear wave effects of curvature solitons in surface layers of high-purity aluminum polycrystals under severe plastic deformation. II. The role of boundary conditions, interfaces, and nonequilibrium of a deformed state

2008 ◽  
Vol 11 (5-6) ◽  
pp. 299-307 ◽  
Author(s):  
V.E. Panin ◽  
T.F. Elsukova ◽  
O.Yu. Vaulina ◽  
Yu.I. Pochivalov
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Boundary Conditions ◽  
Nonlinear Wave ◽  
High Purity ◽  
Surface Layers ◽  
Wave Effects ◽  
Deformed State ◽  
High Purity Aluminum

Microstructure characterization of high-purity aluminum processed by dynamic severe plastic deformation

2010 ◽  
Vol 207 (10) ◽  
pp. 2233-2237 ◽  
Author(s):  
Guy Dirras ◽  
Thierry Chauveau ◽  
Akrum Abdul-Latif ◽  
Salah Ramtani ◽  
Quang-Hien Bui
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
High Purity ◽  
Microstructure Characterization ◽  
High Purity Aluminum

The role of pyramidal 〈  +  〉 dislocations in the grain refinement mechanism in Ti-6Al-4V alloy processed by severe plastic deformation

2020 ◽  
Vol 200 ◽  
pp. 101-115
Author(s):  
Chenglin Wang ◽  
Dapeng Yu ◽  
Zhiqiang Niu ◽  
Wenlong Zhou ◽  
Guoqing Chen ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Grain Refinement ◽  
Refinement Mechanism

Role of severe plastic deformation on the formation of nanograins and nano-sized precipitates in Fe–Ni–Mn steel

2011 ◽  
Vol 32 (6) ◽  
pp. 3526-3531 ◽  
Author(s):  
M. Nili Ahmadabadi ◽  
H. Shirazi ◽  
H. Ghasemi-Nanesa ◽  
S. Hossein Nedjad ◽  
B. Poorganji ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Mn Steel

Role of severe plastic deformation on the cyclic reversibility of a Ti50.3Ni33.7Pd16 high temperature shape memory alloy

2010 ◽  
Vol 58 (19) ◽  
pp. 6411-6420 ◽  
Author(s):  
B. Kockar ◽  
K.C. Atli ◽  
J. Ma ◽  
M. Haouaoui ◽  
I. Karaman ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
High Temperature ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory

Effect of a Surface Constraining Layer on the Plastic Deformation of Au Microspheres

MRS Advances ◽  
2018 ◽  
Vol 3 (8-9) ◽  
pp. 427-432
Author(s):  
AZM Ariful Islam ◽  
Robert J. Klassen
Keyword(s):  
Plastic Deformation ◽  
Small Volume ◽  
Dislocation Nucleation ◽  
Surface Layers ◽  
Loading Rates ◽  
Plastic Deformation Process ◽  
Sputter Deposited ◽  
Yield Force ◽  
Mechanisms Of Plastic Deformation

ABSTRACTSingle crystal Au microspheres, of 3 μm diameter, with sputter-deposited Ni surface layers, of 40 or 80 nm thickness, were tested in compression at three loading rates to investigate the role of thin passive layers on the mechanisms of plastic deformation of small-volume FCC ductile metal samples. The Ni layer resulted in an increase in the incipient yield force by about 10%. Micro-cracking of the Ni layer was observed to occur with incipient yielding. The estimated apparent activation volume of the incipient plastic deformation process was found to be nearly identical for the Ni-coated and the uncoated Au microspheres. This suggests that, while the stress required to initiate incipient plastic deformation was increased by the constraint imposed by the Ni layer, the subsequent plastic flow occurred by a dislocation nucleation and glide mechanism that is essentially the same as that occurring in an unconstrained Au microsphere.

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