000			01608nab a2200205 4500
005			20260520001103.0
008			260224s2012 xxu
245	0	0	_aTechnical note: Examination of focused ion beam-sectioned surface films formed on AM60B mg alloy in an aqueous saline solution
260			_a _b _cjun. 2012
270			_a06/09/2012 ; 06/09/2012
300			_a7 p. ; 468-474
520			_aThis technical note reports on relative differences in the physical and chemical nature of the surface films formed on AM60B during anodic polarization in an aqueous saline solution. Cross sections of the films prepared by focused ion beam (FIB) milling were analyzed using scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS). The apparent breakdown potential (Eb) observed in the potentiodynamic anodic polarization curve is clearly associated with the onset of an accelerated form of localized corrosion. SEM-EDS analysis of FIB-sectioned surface films revealed that this accelerated form of localized corrosion coincides with a drastic change in the physical and chemical nature of films formed. The major physical change involves the transformation from a compact thin film to a much thicker film with significant poros-ity and cracking. The major chemical change involves the significant incorporation of Cl- into the much thicker, significantly porous, and cracked film.
581			_a6
773	0		_tCorrosion _g68
942			_cARTICULO
100	1		_aKish, J.R. _933044
100	1		_aHu, Y. _927214
100	1		_aLi, J. _938379
999			_c187297 _d187297