The Types and Distribution Characterization of Al-Mn Phases in the AZ61 Magnesium Alloy

Pan, Fusheng; Feng, Zhongxue; Zhang, Xiyan; Tang, Aitao

doi:10.1016/j.proeng.2011.12.528

Cited by 24 publications

(6 citation statements)

References 12 publications

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“…For AZ91 (Mg-9Al-0.7Zn in wt%), sufficient Mn is usually added to ensure that the Fe:Mn ratio is less than 0.032 which substantially improves the corrosion resistance [1,2]. work [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Nucleation and growth crystallography of Al8Mn5 on B2-Al(Mn,Fe) in AZ91 magnesium alloys

2018

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Section: Introductionmentioning

confidence: 99%

Nucleation and growth crystallography of Al8Mn5 on B2-Al(Mn,Fe) in AZ91 magnesium alloys

2018

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“…In an Al-containing Mg alloy, Mn can form the Al–Mn phase in the microstructures. The Al–Mn phases are mainly Al 4 Mn, Al 6 Mn, Al 8 Mn 5 and Al 11 Mn 4 [ 23 ]. Their shapes are fishbone-, particle-, flower-shape and needle-like because of the different solidification conditions.…”

Section: Resultsmentioning

confidence: 99%

Corrosion and Mechanical Behavior of the As-Cast and Solid-Solution-Treated AM50 Magnesium Alloy in Different Media

et al. 2023

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Hydrogen embrittlement and the anodic dissolution mechanism are two important aspects of the corrosion behavior of magnesium alloys. Here, to evaluate the effects of these two aspects on the corrosion failure of magnesium alloys under stress, the stress and corrosion behaviors of the AM50 magnesium alloy in air, deionized water, and NaCl solution after solid-solution (T4) treatment were investigated by X-ray diffraction, scanning electron microscopy, slow strain rate tensile testing, and vacuum dehydrogenation. The as-cast AM50 magnesium alloy was mainly composed of the α-Mg and β-Mg17Al12 phases. After T4 treatment, the amount of the β-Mg17Al12 phase was significantly reduced, and only a small amount existed at the grain boundaries. After T4 treatment, the stress corrosion resistance in deionized water improved, but it decreased in an NaCl environment. Dehydrogenation experiments showed that the effect of hydrogen on the corrosion process was weakened owing to the decrease of the β-Mg17Al12 phase after solution treatment. The effects of hydrogen embrittlement and the anodic dissolution mechanism on the corrosion behavior of the AM50 magnesium alloy under stress were different. In deionized water, the hydrogen embrittlement mechanism played the major role, while the anodic dissolution mechanism played the major role in the presence of Cl− ions.

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“…The quantitative distribution characteristic of MgO was statistics by image processing. The details of the quantification procedure of phase were documented elsewhere [32][33][34] .…”

Section: Microstructural Characterizationmentioning

confidence: 99%

Effect of MgO Content on Mechanical Properties of Directionally Solidified Pure Magnesium

2021

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The pure magnesium was fabricated by directional solidification, and the effect of the distribution characteristics of magnesium oxide (MgO) on the mechanical properties of pure magnesium was investigated. The statistical results showed that the area fraction, number and size of MgO were decreased gradually from the top region ingot to the bottom region ingot, and these reflected the advantages of directional solidification technology in the controllability of MgO distribution characteristics. The top parts of magnesium ingots have the highest tensile strength (44 MPa), which is mainly due to the presence of a large amount of the coarse MgO. Though the coarse MgO increases the strength obviously, it has harm for the ductility of magnesium. The top parts of magnesium ingots have higher ultimate tensile strength, but lower failure strain (13% and-21% respectively) than the ingot at the center. These results indicate that if the suitable size and amount of MgO existed in magnesium matrix, it could avoid the disadvantages of MgO and provide positive effect for both the strength and ductility of magnesium alloys.

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The Types and Distribution Characterization of Al-Mn Phases in the AZ61 Magnesium Alloy

Cited by 24 publications

References 12 publications

Nucleation and growth crystallography of Al8Mn5 on B2-Al(Mn,Fe) in AZ91 magnesium alloys

Nucleation and growth crystallography of Al8Mn5 on B2-Al(Mn,Fe) in AZ91 magnesium alloys

Corrosion and Mechanical Behavior of the As-Cast and Solid-Solution-Treated AM50 Magnesium Alloy in Different Media

Effect of MgO Content on Mechanical Properties of Directionally Solidified Pure Magnesium

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