Corrosion/fatigue studies of a chromate converted and ion beam modified AL7075-T6 alloy surface

Author

Bystritskii, V. ; Garate, E. ; Kharlov, A.

Author_Institution

California Univ., Irvine, CA, USA

Volume

2

fYear

1999

Firstpage

1279

Abstract

This paper presents experimental results on the investigation of corrosion properties and structure of the chromate converted surface layer of aluminum alloy 7075-T6 modified by plasma-enhanced ion beams generated in a microsecond plasma opening switch. Potentiodynamic methods were used to measure the corrosion properties of Al alloy. SEM and optical microscopy were used for characterization of its surface structure. The investigation has been performed both for unstressed Al samples and samples having undergone various number of bending fatigue cycles in corrosive media. Experiments revealed clear improvement in corrosion properties for ion beam treated samples in both cases.

Keywords

aluminium alloys; corrosion fatigue; corrosion testing; ion beam effects; optical microscopy; plasma switches; pulsed power switches; scanning electron microscopy; AL7075-T6 alloy surface; SEM; bending fatigue cycles; chromate conversion; corrosion properties; corrosive media; ion beam modification; microsecond plasma opening switch; optical microscopy; plasma-enhanced ion beams; potentiodynamic methods; surface structure characterisation; Aluminum alloys; Corrosion; Fatigue; Ion beams; Optical microscopy; Optical switches; Particle beam optics; Plasma measurements; Plasma properties; Scanning electron microscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference, 1999. Digest of Technical Papers. 12th IEEE International

Conference_Location

Monterey, CA, USA

Print_ISBN

0-7803-5498-2

Type

conf

DOI

10.1109/PPC.1999.823758

Filename

823758