The Influence of Electric Current Pulses on the Microstructure of Magnesium Alloy AZ91D

2005 ◽  
pp. 201-204
Author(s):  
Yuan Sheng Yang ◽  
Quan Zhou ◽  
Zhuang Qi Hu
Keyword(s):  
Magnesium Alloy ◽  
Electric Current ◽  
Current Pulses ◽  
Alloy Az91d ◽  
Electric Current Pulses

The Influence of Electric Current Pulses on the Microstructure of Magnesium Alloy AZ91D

2005 ◽  
Vol 488-489 ◽  
pp. 201-204 ◽  
Author(s):  
Yuan Sheng Yang ◽  
Quan Zhou ◽  
Zhuang Qi Hu
Keyword(s):  
Magnesium Alloy ◽  
Electric Current ◽  
Microstructure Evolution ◽  
Nucleation Rate ◽  
Low Voltage ◽  
Az91d Alloy ◽  
Current Pulses ◽  
Alloy Az91d ◽  
Electric Current Pulses ◽  
Semi Solid

The microstructure evolution of magnesium alloy AZ91D solidified with different electric current pulses and cooling rates was investigated and a new method, Low-voltage Electric Current Pulses (LVECP), to produce semi-slurry magnesium alloy was developed in this paper. The experimental results showed that the electric current pulses during solidification changed morphology of dendrites and the equiaxed, non-dendritic grains formed. The size of the primary a-Mg particles in semi-solid AZ91D alloy and the sphericity of the particles decreased with increase of discharging the voltage and treating time of LVECP. The increase of the cooling rate during the solidification of AZ91D alloy with LVECP promoted the formation of finer a-Mg particles, but the value of the sphericity of the particles rised. The formation of equiaxed, nondendritic structure by LVECP might be attributed to the electric current pulses increase the nucleation rate, restrained growth of the dendrites, and made dendrite arms remelted during the solidification of AZ91D alloy.

Effect of electric current pulses on the recrystallization kinetics of copper

1988 ◽  
Vol 22 (2) ◽  
pp. 235-238 ◽  
Author(s):  
H. Conrad ◽  
N. Karam ◽  
S. Mannan ◽  
A.F. Sprecher
Keyword(s):  
Electric Current ◽  
Recrystallization Kinetics ◽  
Current Pulses ◽  
Electric Current Pulses ◽  
Kinetics Of

Effect of electric current pulses on solidification of immiscible alloys

2014 ◽  
Vol 132 ◽  
pp. 66-69 ◽  
Author(s):  
Hongxiang Jiang ◽  
Jiuzhou Zhao ◽  
Cuiping Wang ◽  
Xingjun Liu
Keyword(s):  
Electric Current ◽  
Immiscible Alloys ◽  
Current Pulses ◽  
Electric Current Pulses

Detection of electric current pulses by a fibre-optic sensor using spun fibre

2018 ◽  
Vol 48 (1) ◽  
pp. 62-69 ◽  
Author(s):  
Ya V Przhiyalkovsky ◽  
V P Gubin ◽  
N I Starostin ◽  
S K Morshnev ◽  
A I Sazonov
Keyword(s):  
Electric Current ◽  
Fibre Optic ◽  
Fibre Optic Sensor ◽  
Current Pulses ◽  
Optic Sensor ◽  
Electric Current Pulses
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