Triple Junction Motion – A New Recovery Mechanism in Metals Deformed to Large Strains

Tian Bo Yu; Niels Hansen; Xiao Xu Huang

doi:10.4028/www.scientific.net/MSF.753.485

Paper Titles

Texture and Structure Study of AZ41 Alloy after ECAP and Annealing
p.469

Influence of Grain Size on Mechanical Properties of AZX311 Alloy
p.473

Crystallography of Natural and Synthetic Gold Alloy Microstructures
p.477

Microstructure through an Ice Sheet
p.481

Triple Junction Motion – A New Recovery Mechanism in Metals Deformed to Large Strains
p.485

Role of Recrystallized Grains on the Environment-Assisted Cracking of Aluminium-Alloy
p.489

Texture Formation in AZ91 Magnesium Alloy during High-Temperature Uniaxial Compression
p.493

Texture Formation in AA5182 Aluminum Alloy by Hot Extrusion
p.497

Effect of Fine Grain on Mechanical Properties of A6N01 Alloy
p.501

HomeMaterials Science ForumMaterials Science Forum Vol. 753Triple Junction Motion – A New Recovery Mechanism...

Triple Junction Motion – A New Recovery Mechanism in Metals Deformed to Large Strains

Abstract:

A phenomenologically new recovery mechanism – triple junction motion is presented. This recovery mechanism is found to be the dominant one at low and medium temperatures in highly strained aluminum, which has a very fine microstructure, composed of lamellae with the thickness of a few hundred nanometers. Triple junction motion leads to removal of thin lamellae and to a consequent increase of the thickness of neighboring lamellae. This recovery mechanism therefore increases the average lamellar boundary spacing and causes a gradual transition from a lamellar structure to a more equiaxed structure preceding recrystallization.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 753)

Pages:

485-488

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.753.485

Citation:

Cite this paper

Online since:

March 2013

Authors:

Tian Bo Yu, Niels Hansen, Xiao Xu Huang

Keywords:

Deformation Microstructure, Lamellar Boundary, Recovery, Triple Junction Motion

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] W.Q. Cao, A. Godfrey, N. Hansen, Q. Liu, Annealing behavior of nanostructured aluminum produced by cold rolling to ultrahigh strains, Metall. Mater. Trans. A 40 (2009) 204-214.

DOI: 10.1007/s11661-008-9678-z

Google Scholar

[2] D.A. Hughes, N. Hansen, Microstructure and strength of nickel at large strains, Acta Mater. 48 (2000) 2985-3004.

DOI: 10.1016/s1359-6454(00)00082-3

Google Scholar

[3] Q. Liu, X. Huang, D.J. Lloyd, N. Hansen, Microstructure and strength of commercial purity aluminium (AA 1200) cold-rolled to large strains, Acta Mater. 50 (2002) 3789-3802.

DOI: 10.1016/s1359-6454(02)00174-x

Google Scholar

[4] T. Yu, N. Hansen, X. Huang, Recovery by triple junction motion in aluminium deformed to ultrahigh strains, Proc. R. Soc. A 467 (2011) 3039-3065.

DOI: 10.1098/rspa.2011.0097

Google Scholar

[5] G. Christiansen, J.R. Bowen, J. Lindbo, Electrolytic preparation of metallic thin foils with large electron-transparent regions, Mater. Charact. 49 (2002) 331-335.

DOI: 10.1016/s1044-5803(03)00032-9

Google Scholar

[6] O.V. Mishin, D. Juul Jensen, N. Hansen, Evolution of microstructure and texture during annealing of aluminum AA1050 cold rolled to high and ultrahigh strains, Metall. Mater. Trans. A 41 (2010) 2936-2948.

DOI: 10.1007/s11661-010-0291-6

Google Scholar

[7] T. Yu, N. Hansen, X. Huang, Recovery mechanisms in nanostructured aluminium, Phil. Mag. 92 (2012) 4056–4074.

DOI: 10.1080/14786435.2012.704418

Google Scholar

[8] H. Jazaeri, F.J. Humphreys, The transition from discontinuous to continuous recrystallization in some aluminium alloys II – annealing behavior, Acta Mater. 52 (2004) 3251–3262.

DOI: 10.1016/j.actamat.2004.03.031

Google Scholar