Kinetics of Submicrocrystalline Structure Formation in a Cu-Cr-Zr Alloy during Large Plastic Deformation

Iaroslava Shakhova; Andrey Belyakov; Rustam Kaibyshev

doi:10.4028/www.scientific.net/MSF.879.1749

Paper Titles

Influence of Corrosive Conditions on the Mechanical Performance of Flow Drill Screw Joints between Light Metals
p.1725

Calculation of the Stress Interaction between Dislocation Pile-Ups in Neighbouring Misoriented Grains
p.1731

High-Pressure Synthesis of Skutterudite-Type Thermoelectric Materials
p.1737

Development of Joining Method between Zircaloy and SiC/SiC Composite Tubes by Using Diode Laser
p.1743

Kinetics of Submicrocrystalline Structure Formation in a Cu-Cr-Zr Alloy during Large Plastic Deformation
p.1749

The Effects of Interfacial Heat Transfer Coefficient on the Microstructure of High-Pressure Die-Cast Magnesium Alloy AM60B
p.1755

Cooling Curve Based Estimation of Mechanical Properties in High Strength Steel Welds
p.1760

Features of Electronic States in the Highly-Correlated Electronic System Sr_1-xNd_xMnO₃ around x = 0.50
p.1766

Fluctuation of Position and Energy of a Fine Particle in Plasma Nanofabrication
p.1772

HomeMaterials Science ForumMaterials Science Forum Vol. 879Kinetics of Submicrocrystalline Structure...

Kinetics of Submicrocrystalline Structure Formation in a Cu-Cr-Zr Alloy during Large Plastic Deformation

Abstract:

The grain refinement and kinetics of submicrocrystalline structure formation in a Cu-0.3%Cr - 0.5%Zr alloy during large plastic deformation were investigated. The fraction of high-angle boundaries and the fraction of ultrafine grains were used to estimate the kinetics of grain refinement and submicrocrystalline structure evolution during large plastic deformation. The multidirectional forging (MDF), equal channel angular pressing (ECAP), and high pressure torsion (HPT) were used as methods of large plastic deformation. Comparative analysis showed that the grain refinement process occurred faster during HPT and MDF in comparison with ECAP. The fraction of ultrafine grains achieved almost 1 after 3 HPT turns and after MDF to the total strain of 4; while the one reached only 0.29 after 4 ECAP passes. The modified Johnson-Mehl-Avrami-Kolmogorov equation could be applied to determine the kinetics of grain refinement in copper alloy during large plastic deformation as a function of true strain.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 879)

Pages:

1749-1754

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.1749

Citation:

Cite this paper

Online since:

November 2016

Authors:

Iaroslava Shakhova*, Andrey Belyakov, Rustam Kaibyshev

Keywords:

Cu-Cr-Zr Alloy, Dynamic Recrystallization, High-Angle Boundaries, Large Plastic Deformation, Ultra Fine Grain

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] R.Z. Valiev, R.K. Islamgaliev, I.V. Alexandrov, Bulk nanostructured materials from severe plastic deformation, Prog. Mater. Sci. 45 (2000) 103-189.

DOI: 10.1016/s0079-6425(99)00007-9

Google Scholar

[2] Y. Estrin, A. Vinogradov, Extreme grain refinement by severe plastic deformation: A wealth of challenging science, Acta Mater. 61 (2013) 782-817.

DOI: 10.1016/j.actamat.2012.10.038

Google Scholar

[3] T. Sakai, A. Belyakov, R. Kaibyshev, H. Miura, J.J. Jonas, Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions, Prog. Mater. Sci. 60 (2014) 130-207.

DOI: 10.1016/j.pmatsci.2013.09.002

Google Scholar

[4] F.J. Humphreys, M. Hatherly, Recrystallization and related annealing phenomena 2nd ed. Elsevier, Oxford, (2004).

Google Scholar

[5] W. Roberts, In: Strength of Metals and Alloys (ICSMA-7), edited by H.J. McQueen et al. Pergamon Press: Oxford, UK, (1986).

Google Scholar

[6] B. Derby, The dependence of grain size on stress during dynamic recrystallization, Acta Metall. Mater. 39 (1991) 955-962.

DOI: 10.1016/0956-7151(91)90295-c

Google Scholar

[7] R.Z. Valiev, T.G. Langdon Principles of equal-channel angular pressing as a processing tool for grain refinement, Prog. Mater. Sci. 51 (2006) 881-981.

DOI: 10.1016/j.pmatsci.2006.02.003

Google Scholar