Structural characterisation and corrosion resistance of Ga-precious metal alloys formed by liquid–solid reaction at room temperature

Pinasco, M. R.; Angelini, Emma Paola Maria Virginia; Cordano, E.; Rosalbino, Francesco

doi:10.1016/s0925-8388(00)01418-3

Cited by 18 publications

(8 citation statements)

References 7 publications

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“…The specific energy of the seawater battery using Mg-Hg-Ga alloys as anode can reach 150 W•h/kg [6], compared with 30 W•h/kg of lead acid battery. However, the good results of the Mg anodes obtained in high power seawater battery still meet with problems such as bad deformability, large self-corrosion velocity and low current efficiency [6][7].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Homogenization Treatment on Electrochemical Behavior of the Mg-0.8wt%Ga-0.8wt%In Anode Materials

Feng

Wang

Peng

2014

MSF

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The effects of homogenization treatment on the electrochemical corrosion behavior of Mg-0.8wt%Ga-0.8wt%In anode materials were investigated by the polarization and galvanostatic curves tests. The scanning electron micrographs of the secondary phase after heat treatment and the corroded surface of the specimens were observed. The corrosion product of the Mg-0.8wt%Ga-0.8wt%In alloy was determined by X-ray diffraction. The results show that the intergranular compound dissolved in the Mg matrix in the Mg-0.8wt%Ga-0.8wt%In after homogenizing at 673K for 24h. The least corrosion current density, 0.029mA/cm2, appeared in this specimen due to the least corrosion driving force. The corrosion of the Mg-0.8wt%Ga-0.8wt%In alloy in a 3.5% NaCl solution was generous corrosion and pitting attack. The corrosion product has been found to be mainly Mg (OH)2.

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Section: Introductionmentioning

confidence: 99%

“…According to researches [8][9][10][11], gallium and mercury can greatly activate magnesium anodes due to the dissolution-redeposition mechanism and gallium can also enhance the corrosion resistance of the amalgams [7]. Due to the toxicity of mercury, In is chosen to replace Hg.…”

Section: Introductionmentioning

confidence: 99%

Influence of Homogenization Treatment on Electrochemical Behavior of the Mg-0.8wt%Ga-0.8wt%In Anode Materials

Feng

Wang

Peng

2014

MSF

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“…According to researches, [12][13][14][15][16][17][18][19] Ga and Hg can greatly activate Mg anodes, and Ga can also enhance the corrosion resistance of the amalgams. 20 The specific energy of the seawater battery using Mg-Hg alloys as anodes can reach 150 W·h/kg, 21 …”

Section: Introductionmentioning

confidence: 99%

Influence of Alloying Elements Ga and Hg on Electrochemical Corrosion Behavior of Mg Solid Solution

Feng¹,

Wang²,

Peng³

2011

CORROSION

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The electrochemical corrosion behavior of Mg1.5Ga, Mg3Ga, and Mg1.5Hg1.5Ga (at%) alloys with an α-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 α-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 Ga 5 Mg 2 , which react with water and promote the dissolution and discharge of α-Mg. The most negative stable potential of -1.80 V and opencircuit 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/cm 2 to 1.794 mA/cm 2 , while the addition of 1.5 at% Hg increases the corrosion current density from 1.794 mA/cm 2 to 5.282 mA/cm 2 .

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“…So far there is few report about the alloy component and processing technic for the Mg-Hg anode materials. In this article Ga was added into the Mg-Hg alloys considering the activation of Ga on Al and Mg anode [10][11][12][13] and the enhanced corrosion resistance of Ga on dental amalgams [14]. The properties of -Mg single phase containing Hg and Ga alloying elements as anode material was studied.…”

Section: Introductionmentioning

confidence: 99%

Influence of Solid Solution Elements on Electrochemical Corrosion Hehavior of Mg Anodes

Feng,

Wang,

Peng

et al. 2010

Meet. Abstr.

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Structural characterisation and corrosion resistance of Ga-precious metal alloys formed by liquid–solid reaction at room temperature

Cited by 18 publications

References 7 publications

Influence of Homogenization Treatment on Electrochemical Behavior of the Mg-0.8wt%Ga-0.8wt%In Anode Materials

Influence of Homogenization Treatment on Electrochemical Behavior of the Mg-0.8wt%Ga-0.8wt%In Anode Materials

Influence of Alloying Elements Ga and Hg on Electrochemical Corrosion Behavior of Mg Solid Solution

Influence of Solid Solution Elements on Electrochemical Corrosion Hehavior of Mg Anodes

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