Features of Nanocrystalline Structure Formation on Sintering of Ultra-Fine Powders

1998 ◽  
pp. 387-404 ◽  
Author(s):  
V. V. Skorokhod ◽  
A. V. Ragulya
Keyword(s):  
Structure Formation ◽  
Nanocrystalline Structure ◽  
Fine Powders

A Comparative Study of Structure Formation in Thermomechanically Treated Ti-Ni and Ti-Nb-(Zr, Ta) SMA

2012 ◽  
Vol 706-709 ◽  
pp. 1931-1936 ◽  
Author(s):  
Sergey Prokoshkin ◽  
Vladimir Brailovski ◽  
Karine Inaekyan ◽  
Andrey Korotitskiy ◽  
Sergey Dubinskiy ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Comparative Study ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Structure Formation ◽  
Thermomechanical Treatment ◽  
Functional Properties ◽  
Nanocrystalline Structure ◽  
Technological Factors

The processes of structure formation in Ti-Ni and in Ti-Nb-Zr, Ti-Nb-Ta shape memory alloys (SMA) under thermomechanical treatment (TMT) were studied. The TMT comprised cold rolling with true strains from e=0.25 to 2 and post-deformation annealing. Differences in these processes between two groups of alloys are considered. The main conclusions are as follows: nanostructures created by TMT are useful for radical improvement of the SMA functional properties, and an optimum nanostructure (nanocrystalline structure, nanosubgrained structure or theirmixture) should be selected by taking into account other structural and technological factors.

Application of nanocrystalline structure modifi ed layers on coldworking tool

2021 ◽  
pp. 37-43
Author(s):  
S.S. Samotugin ◽  
V.I. Lavrinenko ◽  
Yu.S. Samotugina ◽  
O.A. Khristenko ◽  
O.N. Shicheva ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Particle Size ◽  
Surface Modification ◽  
Structure Formation ◽  
Cold Working ◽  
Average Particle Size ◽  
Nanocrystalline Structure ◽  
Cutting Edge ◽  
Average Particle ◽  
Plasma Surface

The regularities of the structure formation and changes in the fracture toughness parameters of the Kh12M steel are studied for various technological variants of plasma surface modification. The possibility for the formation of nanocrystalline martensite-carbide structure with average particle size of 50...150 nm in the surface volumes at the cutting edge of cold-working tool is shown.

Nanocrystalline structure formation in Al-Mg-Sc alloys during severe plastic deformation

2006 ◽  
Vol 2006 (6) ◽  
pp. 533-540 ◽  
Author(s):  
S. V. Dobatkin ◽  
V. V. Zakharov ◽  
A. Yu. Vinogradov ◽  
K. Kitagawa ◽  
N. A. Krasil’nikov ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Structure Formation ◽  
Nanocrystalline Structure

The mechanism of nanocrystalline structure formation in Ni3Al during severe plastic deformation

2001 ◽  
Vol 49 (4) ◽  
pp. 663-671 ◽  
Author(s):  
A.V. Korznikov ◽  
G. Tram ◽  
O. Dimitrov ◽  
G.F. Korznikova ◽  
S.R. Idrisova ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Structure Formation ◽  
Nanocrystalline Structure

The nanocrystalline structure formation in germanium subjected to severe plastic deformation

1994 ◽  
Vol 4 (4) ◽  
pp. 387-395 ◽  
Author(s):  
R.K. Islamgaliev ◽  
F. Chmelik ◽  
I.F. Gibadullin ◽  
W. Biegel ◽  
R.Z. Valiev
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Structure Formation ◽  
Nanocrystalline Structure
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