Crevice corrosion investigation on AA 6013: application of electrochemical noise analysis

Abstract

T he aluminium alloy AA 6013 is of increasing signi cance with regard to the aircraft M. SCHNEIDER industry. In addition to its mechanical properties, corrosion resistance, especially against H. POHL local corrosion phenomena ( i.e. pitting corrosion and crevice corrosion), is very important in structural applications. In this work, the authors present the use of electrochemical noise analysis ( EN A) in combination with a corrosion cell design, which was developed for the investigation of crevice corrosion. It is shown that EN A is a very useful technique for the early detection of crevice corrosion processes in the earliest stages of attack.BCJ /1989

Investigation of the initial stage of crevice corrosion on Al99.5 by electrochemical noise analysis

“…The crevice gap amounted approximately 0.1 mm. Detailed information about this design is given in the earlier publications [3,12].…”

Effect of pin offset on the mechanical properties of friction stir welded AA 6013 aluminum alloy plates

“…AA 6013 aluminum alloy, also known as an aluminum-magnesium-silicon-copper alloy is widely used in aerospace applications, automotive and aircraft industries [1][2][3]. AA 6013 is evaluated to be a promising aluminum alloy in producing fuselage panels, leading and trailing edges, and engine cowlings due to its improved formability feature, high corrosion resistance and low density [4,5]. Notably, AA 6013 alloy could replace AA 2024 alloy due to its superior properties and stretch formability [3,6,7].…”

Electrochemical potential noise analysis of Cu–BTA system using wavelet transformation

“…Electrochemical noise analysis (ENA) is a newly developed way utilized for investigation of many applied cases like inhibition system [13][14][15], crack initiation [16,17], pitting and crevice corrosion [18][19][20][21][22]. The potential noise measurements have been used to estimate the electrode morphological state, Al corrosion and etc.…”