Dendritic solidification of magnesium alloy AZ91

1990 ◽  
Vol 21 (1) ◽  
pp. 221-230 ◽  
Author(s):  
K. Pettersen ◽  
O. Lohne ◽  
N. Ryum
Keyword(s):  
Magnesium Alloy ◽  
Dendritic Solidification ◽  
Alloy Az91 ◽  
Magnesium Alloy Az91

Rheological Transitions at Low Solid Fraction in Solidifying Magnesium Alloy AZ91

2007 ◽  
Vol 561-565 ◽  
pp. 1067-1070 ◽  
Author(s):  
Christopher M. Gourlay ◽  
B. Meylan ◽  
Arne K. Dahle
Keyword(s):  
Grain Size ◽  
Magnesium Alloy ◽  
Mechanical Behaviour ◽  
Defect Formation ◽  
Dendritic Morphology ◽  
Al Alloys ◽  
Dendritic Solidification ◽  
Alloy Az91 ◽  
Magnesium Alloy Az91 ◽  
Dendrite Coherency

Transitions in the mechanical behaviour of solidifying alloys influence feeding mechanisms and defect formation during many casting processes. This paper explores dendrite coherency and the cracking transition during the equiaxed dendritic solidification of Mg alloy AZ91 using the continuous-torque technique and vane rheometry. The two techniques yielded similar dendrite coherency values of ~17% solid, and the cracking transition occurred at 40% solid in vane rheometry tests. These transition values are similar to those reported for Al alloys with equiaxed dendritic morphology and a similar grain size.

Recycling of magnesium alloy AZ91 scrap by a B2O3-containing flux

2004 ◽  
Vol 39 (21) ◽  
pp. 6449-6456 ◽  
Author(s):  
Hong Tao Gao ◽  
Guo Hua Wu ◽  
Wen Jiang Ding ◽  
Yan Ping Zhu
Keyword(s):  
Magnesium Alloy ◽  
Alloy Az91 ◽  
Magnesium Alloy Az91

Corrosion Inhibition of Polyethylene Glycol for Magnesium Alloy AZ91 at Different Temperatures

2014 ◽  
Vol 1015 ◽  
pp. 692-695
Author(s):  
Wei Shang ◽  
Zhou Lan Yin ◽  
Yu Qing Wen ◽  
Xu Feng Wang
Keyword(s):  
Polyethylene Glycol ◽  
Magnesium Alloy ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Nacl Solution ◽  
Alloy Az91 ◽  
Magnesium Alloy Az91 ◽  
Polyethylene Glycol 200 ◽  
Different Temperatures ◽  
Corrosion Inhibition Efficiency

the corrosion inhibition of polyethylene glycol 200 for magnesium alloy AZ91 in 1% NaCl solution at different temperatures are studied. The morphology of the sample at 25°C is analyzed by SEM. And CHI600C electrochemistry workstation is employed to investigate the corrosion inhibition of the samples. The results show that the corrosion inhibition efficiency of polyethylene glycol 200 to the magnesium alloy AZ91 is affected by temperature. Polyethylene glycol 200 has superior corrosion inhibition to the magnesium alloy at the temperature of 25°C.

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