Dispersion of the Structure in Al-Based Alloys by Different Methods of Severe Plastic Deformation

I.G. Brodova; I. Shirinkina; A. Petrova

doi:10.4028/www.scientific.net/MSF.667-669.517

Paper Titles

Microstructure Evolution in a Cu-Ag Alloy during Large Strain Deformation and Annealing
p.493

Grain Refinement and Hardening Induced by Heavy Deformation Using Low Energy High Current Pulsed Electron Beam Surface Treatment
p.499

Synergetic Effect of ECAP and Friction Stir Welding on Microstructure and Mechanical Properties of Aluminium Sheets
p.505

Mechanism Responsible for Dynamic Recrystallization for Repeated Plastic Working Deformation Process
p.511

Dispersion of the Structure in Al-Based Alloys by Different Methods of Severe Plastic Deformation
p.517

Processing and Characterization of Pure Nickel Sheets by Constrained Groove Pressing (CGP) Technique
p.523

Microstructure of Pure Ni Subjected to High Pressure Torsion
p.529

Effect of ECAP on the Dimensional and Morphological Characteristics of High Performance Aluminium PM Alloy
p.535

Microstructure and Properties of Cu-5.7%Cr In Situ Fibrous Composite Produced by Equal-Channel Angular Pressing and Cold Rolling
p.541

HomeMaterials Science ForumMaterials Science Forum Vols. 667-669Dispersion of the Structure in Al-Based Alloys by...

Dispersion of the Structure in Al-Based Alloys by Different Methods of Severe Plastic Deformation

Abstract:

Structural and phase transformations in V95 (type of A7075) alloy upon high pressure torsion (HPT) up to high strain and upon dynamic channel angular pressing (DCAP) were studied using electron microscopy (TEM, SEM) and x-rays diffraction. It was established that the nanostructure with average grain size of 80-55 nm and hardness value of 2.5 GPa is formed by HPT at strain of e=5.5-6.4. It was shown the hardening metastable phase MgZn2 precipitates from supersaturated α-solid solution during dynamic deformation aging; its quantity grows with increasing of strain. Ultra fine grained structure with high- angle boundaries is formed in V95 alloy after already 2 cycles of DCAP. The average grain size is 200 nm in DCAP samples.

You might also be interested in these eBooks

Nanomaterials by Severe Plastic Deformation: NanoSPD5

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 667-669)

Pages:

517-521

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.667-669.517

Citation:

Cite this paper

Online since:

December 2010

Authors:

I.G. Brodova, I. Shirinkina, A. Petrova

Keywords:

High Deformation Rate, High-Pressure, Nanostructure, Severe Plastic Deformation (SPD), Ultrafinegrained Structure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R.Z. Valiev, R. K. Islamgaliev, I.V. Alexandrov. Prog. Mater. Sci. 45, 103 (2000).

Google Scholar

[2] V.M. Segal, V.I. Reznikov, A.E. Drobyshevskii, Metals. 1. (1981), 115-123.

Google Scholar

[3] E.V. Shorokhov, I.N. Zhgilev, R.Z. Valiev, R.F., Patent No. 2 283 717 (2006).

Google Scholar

[4] E.V. Shorokhov, I.N. Zhgilev, D.V. Gunderov, Rus. J., Phys. Chem. B, 2 (2008), 251 -254.

Google Scholar

[5] V.I. Zeldovich, E.V. Shorokhov, N. Yu. Frolova, Fiz. Met. Metalloved., 105 (2008), 431-437.

Google Scholar

[6] I.V. Khomskaya, V.I. Zeldovich, E.V. Shorokhov, et. al., Fiz. Met. Metalloved., 105 (2008), 621-629.

Google Scholar

[7] I. G. Brodova, I. G. Shirinkina, O. A. Antonova, E. V. Shorokhov, I. I. Zhgilev, Materials Science and Engineering A 503, (2009), 103-105.

DOI: 10.1016/j.msea.2007.12.060

Google Scholar

[8] I.G. Brodova, I. G. Shirinkina, T. I. Yablonskikh, V. V. Astaf'ev, E. V. Shorokhov, I. N. Zhgilev, Bullitin of the Russian Academy of Sciences: Physics, (2009), vol. 73, no. 9, pp.1257-1261.

DOI: 10.3103/s1062873809090172

Google Scholar