000			01669nab a2200205 4500
005			20260520001028.0
008			260224s2011 xxu
245	0	0	_aInfluence of alloying elements Ga and Hg on electrochemical corrosion behavior of Mg solid solution
260			_a _b _cmayo 2011
270			_a19/05/2011 ; 19/05/2011
300			_a6 p. ; 055003
520			_aTranscripción del resumen del autor. The electrochemical corrosion behavior of Mg1.5Ga, Mg3Ga, and Mg1.5Hg1.5Ga (at%) alloys with an a-Mg single phase were investigated by potentiodynamic and galvanostatic testing. The corroded surface morphologies of Mg alloys were observed using scanning electron microscopy (SEM), and its corrosion products were determined using x-ray diffraction analysis (XRD) and energy spectrum analysis (ESA). The results show that the solid solution of Ga and Hg in a-Mg promotes the electrochemical activity of Mg alloys, and the influence of Hg is greater than that of Ga. It is ascribed to the formation of Mg amalgams, namely, HgMg and Ga5Mg2, which react with water and promote the dissolution and discharge of a-Mg. The most negative stable potential of -1.80 V and open-circuit potential of -1.94 V occurs in the Mg1.5Hg1.5Ga alloy. The addition of 1.5 at% Ga to Mg1 .5Ga alloy increases the corrosion current density from 1.410 mA/cm2 to 1.794 mA/cm2, while the addition of 1.5 at% Hg increases the corrosion current density from 1.794 mA/cm2 to 5.282 mA/cm2.
581			_a5
773	0		_tCorrosion _g67
942			_cARTICULO
100	1		_aFeng, Y. _926047
100	1		_aWang, R.C. _949896
100	1		_aPeng, C.Q. _949897
999			_c181827 _d181827