Formation of regulated nanostructures in Al alloys using severe plastic deformation processing…

aimed at:
• improving the mechanical and functional properties;                                            
• expanding the areas of innovative applications

Nature Communications (2010) Vol.1
Scripta Materialia 76 (2014)
Metals (2015) 5, pp.578-590
Light Metal Age, December 2014, pp.26-29

Ultrafine-grained aluminum alloys

 

 

The formation of an ultrafine-grained (UFG) structure in the Al-Cu-Mg aluminum alloy contributes to the fabrication of ductile materials with a strength increased by 50% as compared with the strength of the coarse-grained counterpart subjected to standard treatment. UFG alloys can be used as structural materials operating at temperatures up to 170оС. 

200 нм
500 нм

Typical structures in the UFG Al-Cu-Mg aluminum alloy with an average grain size of:

(a) 200 nm; (b) 500 nm

 

Properties of the ultrafine-grained Al-Cu-Mg aluminum alloy

State and billet dimensions

Ultimate tensile strength,

MPa

Elongation to failure,

%

Fatigue endurance limit,

MPa

UFG, diameter 20 mm, length 100 mm

550 МPa

7

257

Coarse-grained

370 MPa

18

222

 

Main publications:

  1. E.Khafizova, R.Islamgaliev. Effect of severe plastic deformation on the structure and mechanical properties of the aluminum Al-Cu-Mg alloy.  JOP Conf. Ser.: Mater. Sci. Eng. 63 (2014) 012081.
  2. R.K. Islamgaliev, E.D. Khafizova, O.B. Kulyasova, K.M. Nesterov, A.V. Ganeev, E.R. Golubovskiy, M.E. Volkov. The microstructure and fatigue of ultrafine-grained Al-Cu-Mg alloy. Acta Physica Polonica. A128, 4 (2015) 633-636.
  3. E. Khafizova, R. Islamgaliev, V. Sitdikov. Strength and fatigue of an ultrafine-grained Al-Cu-Mg alloy. MATEC Web of Conferences. 129 (2017) 02039.