Intermetallic Particles-Induced Pitting Corrosion in 6061-T651 Aluminium Alloy
The polished 6061-T651 aluminium alloy was immersed in 3.5% NaCl solution with about 7 ppm dissolved oxygen. Scanning Electron Microscopy equipped with Energy dispersive X-ray Spectroscopy revealed the presence of Al-Si-Fe-containing particles that acted as cathodic sites and promoted the matrix dissolution. The effect of pH and chloride solution is assessed.
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
K. Mutombo "Intermetallic Particles-Induced Pitting Corrosion in 6061-T651 Aluminium Alloy", Materials Science Forum, Vol. 690, pp. 389-392, 2011