The Role of Mg17Al12Phase in the Corrosion of Mg Alloy AZ91

CORROSION ◽  
1989 ◽  
Vol 45 (9) ◽  
pp. 741-748 ◽  
Author(s):  
O. Lunder ◽  
J. E. Lein ◽  
T. Kr Aune ◽  
K. Nisancioglu
Keyword(s):  
Mg Alloy ◽  
Alloy Az91

Corrosion of Mg alloy AZ91 – the role of microstructure

2004 ◽  
Vol 39 (4) ◽  
pp. 346-350 ◽  
Author(s):  
R.K. Singh Raman ◽  
N. Birbilis ◽  
J. Efthimiadis
Keyword(s):  
Mg Alloy ◽  
Alloy Az91

Physical and Electrochemical Evidence for the Role of a Mg Hydride Species in Mg Alloy Corrosion

CORROSION ◽  
10.5006/2918 ◽  
2019 ◽  
Vol 75 (1) ◽  
pp. 58-68 ◽  
Author(s):  
W. Jeffrey Binns ◽  
Fareshta Zargarzadah ◽  
Vahid Dehnavi ◽  
Jian Chen ◽  
James J. Noël ◽  
...  
Keyword(s):  
Mg Alloy

scholarly journals Grain Refinement by Extension Twin in Mg Alloy during Asymmetrical Rolling

Metals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 891 ◽  
Author(s):  
I Widiantara ◽  
Hae Yang ◽  
Muhammad Kamil ◽  
Dong Yoon ◽  
Young Ko
Keyword(s):  
Grain Refinement ◽  
Electron Backscatter Diffraction ◽  
Surface Region ◽  
Mg Alloy ◽  
Speed Ratio ◽  
Asymmetrical Rolling ◽  
Present Sample ◽  
Refinement Process ◽  
Backscatter Diffraction

The work looked into the grain refinement process of Mg alloy during asymmetrical rolling with a focus on the role of twin. The present sample was deformed at ambient temperature by single operation with the height reduction of 50% at the roll speed ratio of 1:4 for the upper and lower rolls having the same dimension. From the electron backscatter diffraction analysis in the surface region where intense shear strain was imparted, a number of { 10 1 ¯ 2 } extension twins with a width of ~1 µm were detected clearly in most of the deformed grains. Moreover, the average misorientation angle of the deformed grains in the top region was found to be ~32°, which was two times higher than that in the center area where the extension twin was detected rarely. As a result, the microstructure in the top region was refined significantly down to be ~1.1 µm with an aid of twin activities that would be discussed in this study.

Effect of Mo Addition on Room and High Temperature Tensile Behavior of Al-Si-Cu-Mg Alloy in As-Cast and Heat-Treated Conditions

2019 ◽  
Vol 1155 ◽  
pp. 71-79
Author(s):  
Mohammadreza Zamani ◽  
Stefania Toschi ◽  
Alessandro Morri ◽  
Lorella Ceschini ◽  
Salem Seifeddine
Keyword(s):  
High Temperature ◽  
Tensile Behavior ◽  
Mg Alloy ◽  
High Melting Point ◽  
Treated Condition ◽  
Heat Treated ◽  
Heat Treated Condition ◽  
High Temperature Tensile ◽  
Negligible Influence

This study focuses on the role of Mo addition on the mechanical properties of an Al-Si-Cu-Mg alloy in as-cast and heat-treated condition at ambient and elevated temperature. Addition of 0.4 to 0.6 wt.% Mo forms Mo-bearing dispersoid particles which have a relatively high melting point and improve high temperature tensile strength. Ductility suffered in the presence of Mo-bearing particles. Trace addition of Mo up to 0.6 wt.% has a negligible influence on the yield strength and hardness of Al-Si-Cu-Mg alloy in as-cast and heat-treated conditions at ambient temperature and 250 °C.

On the role of Sc or Er micro-alloying in the microstructure evolution of Al-Mg alloy sheets during annealing

2019 ◽  
Vol 157 ◽  
pp. 109918 ◽  
Author(s):  
Le Fu ◽  
Yao Li ◽  
Fuqing Jiang ◽  
Jiwu Huang ◽  
Guofu Xu ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Mg Alloy
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