An Investigation on the Microstructure and Mechanical Properties of the Hot-Dip-Aluminized-Q235/AZ91D Bimetallic Material Produced by Solid–Liquid Compound Casting

2020 ◽  
pp. 361-368
Author(s):  
Jun Cheng ◽  
Jian-hua Zhao ◽  
Yao Tang ◽  
Jing-jing Shang-guan
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Compound Casting ◽  
Bimetallic Material ◽  
Solid Liquid

Influence of Sr Addition on Microstructure and Mechanical Properties of Ignition-Proof AZ91D-0.3Be Magnesium Alloy

2011 ◽  
Vol 335-336 ◽  
pp. 783-786
Author(s):  
Fu Yin Han ◽  
Lin Hai Tian ◽  
Hong Xia Wang ◽  
Wei Liang ◽  
Wen Xian Wang
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Tensile Strength ◽  
Magnesium Alloy ◽  
Cast Alloy ◽  
Solid Solution Alloy ◽  
Aged Alloy ◽  
Microstructure And Mechanical Properties ◽  
Solid Liquid Interface ◽  
Solid Liquid

Sr added ignition-proof AZ91D-0.3Be magnesium alloy was prepared. The influence of Sr content on microstructure and mechanical properties of the alloy was studied. Results show that the microstructure of ignition-proof AZ91D-0.3Be magnesium alloy is refined by a small amount of Sr addition. It is due to that the enrichment of a few Sr atoms in solid liquid interface in the process of magnesium alloy solidification inhibits grain growth and accelerates more nucleation. However, with increasing of Sr addition the microstructure is coarsened. By 0.01% Sr addition the tensile strength of as-cast experimental alloy is increased by about 25% and that of both the solid-solution and aged alloy is increased by about 40%. The elongation of as-cast alloy is increased by about 20% and that of solid-solution alloy increased by about 30%.

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