Comparison of Corrosion Behavior of WE43 and AZ80 Alloys in NaCl and Na2SO4 Solutions

Li, Chenxu; Zhao, Yuming; Liu, Jinhui; Xu, Jilei; Guo, Dong; Zhang, Huanghua; Zhou, Xianghong; Yang, Peixu; Zhang, Shaojun

doi:10.3390/cryst13030506

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…At the same time, low degradation rates are ensured by a wt.% of Zn lower than 3% [2]. As regards AZ91 alloy, the 9wt.% Al and the 1wt.% Zn promote higher corrosion resistance than pure Mg or alloys like AZ31 and AZ81 [2,12,13]. On the other hand, the interdendritic network, exhibited by the AZ91 alloy and formed by the β-Mg 17 Al 12 eutectic in the α-Mg matrix, greatly influences the corrosion behaviour [6,14].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviour of High-Pressure Die-Cast AZ91 Alloy in NaCl Solution: Effects of Friction Stir Process at High Rotational Speed

Ghio,

Cerri

2023

Materials

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The AZ series of Mg alloys have become promising in several industrial fields thanks to its potential microstructure refinement and the β-Mg17Al12 eutectic that controls the mechanical behaviour. Simultaneously, the rapid degradation characterizing Mg alloys makes the investigation of their corrosion behaviour necessary. The present work considers high-pressure die cast (HPDC) AZ91 alloy to evaluate its corrosion behaviour in 1M NaCl solution and investigates how different friction stir process parameters can affect the corrosion responses. No studies analyse the effects induced by the friction stir processed zone, reached using high rotational speeds (>2000 rpm), on the unprocessed HPDC AZ91 alloy. In addition, the morphological analysis of the corroded surfaces having a friction stir processed zone, in which the grain refinement was not obtained, is not present in the literature yet. Microstructural features were investigated by optical microscope and X-ray diffraction analysis before and after the friction stir process. These were subsequently correlated to the corrosion responses after the immersion tests. The results show that HPDC samples with a very smooth surface have the best corrosion resistance with a corrosion rate lower than 3 mm/year, evaluated through the weight loss, compared to the rougher ones. Both the amount of β-Mg17Al12 eutectic and the wt.% Al in the α-Mg matrix, as well as the surface roughness, influence the corrosion behaviour of friction stir processed samples. The best corrosion resistance was obtained with an HPDC alloy processed at 2500 rpm and 50 mm/min.

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Section: Introductionmentioning

confidence: 99%

Corrosion Behaviour of High-Pressure Die-Cast AZ91 Alloy in NaCl Solution: Effects of Friction Stir Process at High Rotational Speed

Ghio,

Cerri

2023

Materials

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The effect of tempering time and cooling environment on the corrosion behavior of AA5083‐H111 alloy

Karagöz,

Buğdaycı,

Öncel

2024

Materialwissenschaft Werkst

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The tempering process can increase the mechanical properties of the material, such as hardness and impact strength, as well as enhance the corrosion resistance. Therefore, the selection of appropriate tempering time and cooling environment is crucial. This study aims to investigate changes in properties such as hardness, tensile strength, corrosion resistance, and microstructure of AA5083‐H111 alloy after a brief tempering process (30 minutes, 45 minutes and 60 minutes) at 320 °C, followed by cooling in air and water environments. The study found that tempering time and cooling environment significantly affect the mechanical properties and corrosion rate. The results show that samples labeled as S30 and S60 have the highest hardness and impact strength, but the best corrosion resistance is achieved in the S60 sample. This study demonstrates that even after a limited‐term tempering process, the mechanical properties and corrosion resistance of AA5083‐H111 alloy can be improved. This information is crucial data for use in the production and application of alloys. The findings of this study could have important implications for the production and application of AA5083‐H111 alloy in industries such as aerospace, automotive, and marine engineering.

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Enhancing constitutive description and workability characterization of Mg alloy during hot deformation using machine learning-based Arrhenius-type model

Long,

Deng,

Jin

et al. 2024

Journal of Magnesium and Alloys

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Comparison of Corrosion Behavior of WE43 and AZ80 Alloys in NaCl and Na2SO4 Solutions

Cited by 5 publications

References 27 publications

Corrosion Behaviour of High-Pressure Die-Cast AZ91 Alloy in NaCl Solution: Effects of Friction Stir Process at High Rotational Speed

Corrosion Behaviour of High-Pressure Die-Cast AZ91 Alloy in NaCl Solution: Effects of Friction Stir Process at High Rotational Speed

The effect of tempering time and cooling environment on the corrosion behavior of AA5083‐H111 alloy

Enhancing constitutive description and workability characterization of Mg alloy during hot deformation using machine learning-based Arrhenius-type model

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