Preliminary communication

Mechanical and corrosion properties of aluminium alloy EN AW 6082 after severe plastic deformation (SPD)

P. Lacková ; Faculty of Metallurgy, Technical University of Košice, Slovakia
M. Buršák ; Faculty of Metallurgy, Technical University of Košice, Slovakia
T. Kvačkaj ; Faculty of Metallurgy, Technical University of Košice, Slovakia
M. Halama ; Faculty of Metallurgy, Technical University of Košice, Slovakia

Abstract

The aim had been to study changes in the properties of aluminium alloy AlSiMgMn. Influence of SPD of the mechanical properties had increased (R_m by 86 MPa, R_o0,2 by 175 MPa, while A had decreased to 20 %). The corrosion potentials had been evaluated in the environment of H2O and in SARS. After SPD was observed in the environment of H₂O, that resistance had increased by -218 mV and after exposure up to 1 000 min there was a slight deterioration of resistance in SARS. On the surface specimens after SPD were observed higher quantities of corrosion products. After SPD was observed fatigue characteristics in torsional stress in the oblique branches Wohler curves showed favourable characteristics of about 35 %.

Keywords

aluminium alloy; severe plastic deformation; mechanical properties; corrosion properties; fatigue properties

Hrčak ID:

126726

URI

https://hrcak.srce.hr/126726

Publication date:

1.1.2015.

Visits: 2.348 *