scholarly journals Plasticity and microstructure of AZ31 magnesium alloy under coupling action of high pulsed magnetic field and external stress

2016 ◽  
Vol 65 (14) ◽  
pp. 146101
Author(s):  
Wang Hong-Ming ◽  
Zhu Yi ◽  
Li Gui-Rong ◽  
Zheng Rui
Keyword(s):  
Magnetic Field ◽  
Magnesium Alloy ◽  
External Stress ◽  
Pulsed Magnetic Field ◽  
Az31 Magnesium Alloy

Effect of Magnetic Field Frequency on Microstructure and Properties of AZ31 Magnesium Alloy Welded Joint with GTAW

2011 ◽  
Vol 291-294 ◽  
pp. 882-885
Author(s):  
Yun Hai Su ◽  
Zheng Jun Liu ◽  
Duo Liu
Keyword(s):  
Magnetic Field ◽  
Magnesium Alloy ◽  
Welded Joint ◽  
Hardness Test ◽  
Az31 Magnesium Alloy ◽  
Fine Crystal ◽  
Field Frequency ◽  
Magnetic Field Frequency ◽  
Microstructure And Properties ◽  
Pine Tree

In this investigation, in order to research the influence of magnetic field frequency on microstructure and properties of magnesium alloy welded joint, the AZ31 magnesium alloy plates which was 5mm were welded by GTAW under longitudinal magnetic field. The tensile test, hardness test and SEM were taken place to analyze the properties and microstructure of welded joint under different magentic field frequency. The acting mechanism of magentic field on welded joint was studied. The results show that: External magnetic field can improve the properties of magnesium alloy welded joint. The optimal mechanical property will be obtained when Im=2, f=20Hz, which the ultimate tensile strength is 231Mpa and the micro-hardness is 76.2HV.The magnetic field can produce electromagnetic stirring, which can refine crystal grain through breaking the pine-tree crystals with proper magnetic field current and frequency. The properties of welded joint will been improved by these fine crystal grain.

Direct chill casting of magnesium alloy under pulsed magnetic field

2016 ◽  
Vol 33 (1) ◽  
pp. 33-39 ◽  
Author(s):  
H. M. Ji ◽  
T. J. Luo ◽  
C. Wang ◽  
J. Cui ◽  
Y. S. Yang
Keyword(s):  
Magnetic Field ◽  
Magnesium Alloy ◽  
Direct Chill ◽  
Direct Chill Casting ◽  
Pulsed Magnetic Field ◽  
Chill Casting

EFFECT OF SAMPLE ORIENTATION ON STATIC RECRYSTALLIZATION OF AZ31 MAGNESIUM ALLOY

2012 ◽  
Vol 48 (8) ◽  
pp. 915 ◽  
Author(s):  
Hongtao HUANG ◽  
Andrew Godfrey ◽  
Wei LIU ◽  
Ruihe TANG ◽  
Qing LIU
Keyword(s):  
Magnesium Alloy ◽  
Static Recrystallization ◽  
Az31 Magnesium Alloy ◽  
Sample Orientation
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