Development of Complex Methods, Combining Thermal Treatment with Severe Plastic Deformation, for Processing of High-Strength Nanostructured Cu-1%Cr-0.7%Al Alloy

Igor V. Alexandrov; V.V. Latysh; Sun Ig Hong; S.N. Faizova; V.M. Polovnikov

doi:10.4028/www.scientific.net/MSF.503-504.515

Paper Titles

Microstructure Evolution and Aging Kinetics of Al-Mg-Si and Al-Mg-Si-Sc Alloys Processed by ECAP
p.493

Hydriding Properties of the Mechanically Deformed Mg-Ni Alloys
p.499

Strain Rate Effect on Fine-Grain Development in 7475 Al Alloy during Hot Multidirectional Forging
p.505

Low Carbon Low Alloy Submicro-Steel with Nano-Precipitation
p.511

Development of Complex Methods, Combining Thermal Treatment with Severe Plastic Deformation, for Processing of High-Strength Nanostructured Cu-1%Cr-0.7%Al Alloy
p.515

Strain-Induced Grain Refinement in Magnesium Alloy AZ31 during Hot Forging
p.521

Equal Channel Angular Pressing of Magnesium Alloy Containing Quasicrystal Phase
p.527

Microstructure, Texture and Deformation Mechanism of Zr702 Processed by Equal Channel Angular Pressing (ECAP)
p.533

Effect of Equal Channel Angular Pressing and Repeated Rolling on Structure, Phase Transformations and Properties of TiNi Shape Memory Alloys
p.539

HomeMaterials Science ForumMaterials Science Forum Vols. 503-504Development of Complex Methods, Combining Thermal...

Development of Complex Methods, Combining Thermal Treatment with Severe Plastic Deformation, for Processing of High-Strength Nanostructured Cu-1%Cr-0.7%Al Alloy

Abstract:

The current work presents new results of investigation of properties and structure of nanocrystalline and submicrocrystalline Cu-1%Cr-0.7%Al alloy. Two severe plastic deformation (SPD) techniques were applied to refine the structure: high pressure torsion and equal-channel angular pressing (ECAP). The first technique was applied to conduct preliminary studies of the alloy different thermal treatments as before SPD as well as after it. A new technological thermomechanical technique for processing of bulk billets of Cu-1%Cr-0.7%Al alloy possessing an ultrafine grained structure was developed on the basis of the obtained results. This technique comprises a combination of ECAP and other deformational processes with the thermal treatment. High values of the tensile strength and yield stress - 700 MPa and 16% accordingly – have been obtained as a result of such treatment, whereas these values after conventional treatment consisted 450 MPa and 20% respectively.

You might also be interested in these eBooks

Nanomaterials by Severe Plastic Deformation

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 503-504)

Pages:

515-520

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.503-504.515

Citation:

Cite this paper

Online since:

January 2006

Authors:

Igor V. Alexandrov, V.V. Latysh, Sun Ig Hong, S.N. Faizova, V.M. Polovnikov

Keywords:

Copper Alloy, Equal-Channel Angular Pressing (ECAP), High Pressure Torsion (HPT), Nanocrystalline Structure, Thermal Treatment

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S.I. Hong, M.A. Hill: Acta Mater. Vol. 46, No. 12 (1998) p.4111.

Google Scholar

[2] S.I. Hong, M.A. Hill: Mater. Sci. and Eng. Vol. 281, No. 1-2 (2000), p.189.

Google Scholar

[3] S.I. Hong, M.A. Hill: Mater. Sci. and Eng. Vol. 264, No. 1-2 (1999), p.151.

Google Scholar

[4] A. Vinogradov, V. Patlan, Y. Suzuki, K. Kitagawa, and V.I. Kopylov: Acta Mat. Vol. 50 (2002), p.1639.

Google Scholar

[5] A.K. Nikolaev, V.M. Rozenberg: Alloys for electrodes of contact welding, Moscow, Metallurgy, (1978).

Google Scholar

[6] M.E. Drits, N.R. Bochvar, E.V. Lysova: Structure, properties and areas of using of copper alloys with rare elements in Problems of Materials Science of non-ferrous alloys, Мoscow, Nauka Publ., (1978), p.120.

Google Scholar

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

Google Scholar