Surface morphology, microstructure and properties of as-cast AZ31 magnesium alloy irradiated by high intensity pulsed ion beams

2014 ◽  
Vol 311 ◽  
pp. 567-573 ◽  
Author(s):  
Xuesong Ma ◽  
Gang Zhang ◽  
Guotian Wang ◽  
Guoliang Zhu ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Surface Morphology ◽  
High Intensity ◽  
Ion Beams ◽  
Az31 Magnesium Alloy ◽  
Microstructure And Properties

Wear mechanism of AZ31 magnesium alloy irradiated by high-intensity pulsed ion beam

2010 ◽  
Vol 204 (14) ◽  
pp. 2152-2158 ◽  
Author(s):  
P. Li ◽  
M.K. Lei ◽  
X.P. Zhu ◽  
X.G. Han ◽  
C. Liu ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Wear Mechanism ◽  
High Intensity ◽  
Ion Beam ◽  
Az31 Magnesium Alloy

Research on Technology and Microstructure Performance in Profile Extrusion of AZ31 Mg-Alloy

2005 ◽  
Vol 488-489 ◽  
pp. 519-522
Author(s):  
Qiang Wang ◽  
Bao Cheng Li ◽  
Zai-xin Feng
Keyword(s):  
Magnesium Alloy ◽  
Dimensional Accuracy ◽  
High Strength ◽  
Az31 Magnesium Alloy ◽  
Technological Parameters ◽  
Zone Length ◽  
Microstructure And Properties ◽  
Fine Grain ◽  
Az31 Mg Alloy ◽  
Cast Alloys

Aimed at characteristics of the profile such as complex shape, high dimensional accuracy and mechanical properties, the reduction zone length and devided flow taper of female die were designed by FEM and extrusion experiments were carried out for as-cast AZ31 magnesium alloy. Technological parameters were determined and microstructure and properties of the extruded profile were examined. The results show that magnesium alloy profile can be extruded if technological parameters such as deformation temperature, tool temperature and ratio of extrusion are controlled strictly. Each of the above mentioned technological parameters has its different influence on microstructure and properties of extruded profile. In comparison with as-cast alloys, microstructure is refined from 120～140μm to about 10μm and tensile strength is enhanced from 171～200MPa to above 260Mpa. This suggests that fine grain and high strength are attained for AZ31 magnesium alloy by extrusion deformation. The extruded profile can meet high properties demands for carrying parts. It provides a possibility for broader usage of magnesium alloy profiles.

Modification of casting magnesium alloy AZ31 irradiated by high intensity pulsed ion beams

2012 ◽  
Vol 24 (2) ◽  
pp. 486-490
Author(s):  
陈占兴 Chen Zhanxing ◽  
曲家惠 Qu Jiahui ◽  
张罡 Zhang Gang
Keyword(s):  
Magnesium Alloy ◽  
High Intensity ◽  
Ion Beams ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31

Corrosion Behavior of AZ31 Magnesium Alloy with Microarc Oxidation Film Irradiated by High-Intensity Pulsed Ion Beam

2008 ◽  
Vol 373-374 ◽  
pp. 460-463 ◽  
Author(s):  
X.G. Han ◽  
P. Li ◽  
X.P. Zhu ◽  
M.K. Lei
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
High Intensity ◽  
Electrochemical Impedance ◽  
Ion Beam ◽  
Microarc Oxidation ◽  
Az31 Magnesium Alloy ◽  
Noticeable Improvement ◽  
Original Films ◽  
Sealing Layer

The microarc oxidation (MAO) films on AZ31 magnesium alloy were modified by high-intensity pulsed ion beam (HIPIB) at an ion current density of 200 A/cm2 with 1-5 shots. The modified MAO films presented a corrosion resistance superior to that of the original films. Scanning electron microscopy (SEM) observation revealed that a sealing layer was formed on the MAO films by HIPIB irradiation. The corrosion behaviors of the MAO films in 3.5 % NaCl solution were characterized by using electrochemical impedance spectroscopy (EIS). The noticeable improvement in the corrosion resistance of MAO films is attributed to the blocking effect of the sealing layer that hinders the process of electrolyte penetrating the MAO films to the magnesium alloy.

Sign in / Sign up

Export Citation Format

Share Document