An Electrochemical Method for the Preparation of Al-Mg Master Alloys from MgO

An Electrochemical Method for the Preparation of Al-Mg Master Alloys from MgO

The electrochemical formation of Al-Mg master alloys were investigated in NaCl-MgF2-MgO melt at 850°C. The results revealed that cell voltage was nearly constant during electrolysis process, Mg content in Al-Mg master alloys increased with increasing of electrolysis time when Mg content was less 7.0...

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Veröffentlicht in:Materials science forum 2010-01, Vol.650, p.260-264
Hauptverfasser: Wang, Ji Kun, Fang, Qin Hong, Shi, Zhong Ning, Guo, Si Chen, Cao, Da Li
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum base alloys
Electric potential
Electrolysis
Electrolytes
Electrolytic cells
Magnesium
Magnesium oxide
Master alloys
Melts
Solid phases
Voltage
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description The electrochemical formation of Al-Mg master alloys were investigated in NaCl-MgF2-MgO melt at 850°C. The results revealed that cell voltage was nearly constant during electrolysis process, Mg content in Al-Mg master alloys increased with increasing of electrolysis time when Mg content was less 7.03mass%, Mg content in Al-Mg master alloys can be up to 7.03mass% for 4h electrolysis. The results of XRD indicated that phase structure of the Al-7.03Mg mass% alloy existed single phase α-Al, MgCl2 and NaMgF3 in electrolyte were observed after electrolysis. And the formation mechanism of Al-Mg master alloy was discussed as well.
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subjects Aluminum base alloys
Electric potential
Electrolysis
Electrolytes
Electrolytic cells
Magnesium
Magnesium oxide
Master alloys
Melts
Solid phases
Voltage
title An Electrochemical Method for the Preparation of Al-Mg Master Alloys from MgO
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