Effect of homogenization on the corrosion behavior of 5083-H321 aluminum alloy

Huang, Yuanchun; Li, Yin; Xiao, Zhengbing; Liu, Yu; Huang, Yutian; Ren, Xiaoyan

doi:10.1016/j.jallcom.2016.02.228

Cited by 43 publications

(12 citation statements)

References 19 publications

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“…However, this concentration also forms an abundance of the b-phases (Al 3 Mg 2 , Al 8 Mg 5 , Mg 2 Al 3 ) which are known to be deleterious in the corrosion performance. Because the b-phase is anodic, its presence enhances the selective dissolution on the coating surface, thus creating sites for deep pits in seawater [8][9][10][11]33]. The local corrosion type of Al-5Mg spray coating layer lowers the efficiency of sacrificial anode and will have the negative effect on the sacrificial anode for corrosion protection [37].…”

Section: Resultsmentioning

confidence: 99%

“…Although the hardness of Al-3Mg was relatively higher than that of Al coating, the mechanical properties become generally worse with increasing their porosity. It is well known that the mechanical properties of Al-Mg alloys are improved with Mg content [9]. On the other hand, it is believed that arc thermal effects during the thermal spray coating process are almost never influenced on their mechanical properties.…”

Section: Methodsmentioning

confidence: 99%

“…Since Al-Mg alloys (5xxx series) have excellent characteristics such as low density, good mechanical properties, and better corrosion resistance, they have been commonly used in marine applications such as shipbuilding and [7,8]. The mechanical properties of AlMg alloys increase with Mg content via solid solution hardening [9]. In general, the Mg content in the commercial wrought alloys rarely exceeds 5% Mg because the increased susceptibility to pitting corrosion is related to the high concentration of Mg content [10].…”

Section: Introductionmentioning

confidence: 99%

“…This reason is that the solubility of Mg is very high at elevated temperature, about 15% at 450°C, but it dose not exceed 1% at the room temperature [10]. The intermetallic particles in Al-Mg alloys include mainly the b-phase (Al 3 Mg 2 or Al 8 Mg 5 ) which can be the action as anodes to the aluminum matrix and become the common sites for pitting nucleation [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Characteristics in Seawater for Cold Thermal Spray-Coated Al–Mg Alloy Layer

Park

Kim

2016

Acta Metall. Sin. (Engl. Lett.)

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For corrosion protection of carbon steel in a marine environment, cold arc thermal spray coating was applied to the surface with Al and Al-Mg alloy wires. The surface hardness of Al and Al-Mg thermal spray coatings increased with Mg content. And the various electrochemical experiments were carried out to evaluate corrosion damage characteristics of the thermal spray coating layers. The Al and Al-Mg thermal spray coating layers presented negative potentials compared to carbon steel in corrosion potential measurements. And an anodic polarization experiment revealed a tendency of activation polarization with no passivation. Furthermore, the corrosion damage of the thermal spray coating layer in galvanostatic experiment was observed mainly at the defect area, and the Al-3Mg thermal spray coating layer presented less surface damages than others. In addition, the Al-3Mg thermal spray coating layer showed the lowest corrosion rate while having a sufficient driving voltage for cathodic corrosion protection. Therefore, it is an optimal thermal spray material for sacrificial anode.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electrochemical Characteristics in Seawater for Cold Thermal Spray-Coated Al–Mg Alloy Layer

Park

Kim

2016

Acta Metall. Sin. (Engl. Lett.)

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“…The extracted samples from as-cast ingot after annealing have shown a significant impact on mechanical properties. Distinguish studies on AA5083 are available in literature conquering the mechanical properties from different aspects through the execution of homogenization annealing (Chen et al, 2015;Huang et al, 2016;Engler and Miller-Jupp, 2016;Dolić and Brodarac, 2017). In a similar scenario, it is accepted that the appropriate selection of the homogenization cycle may improve the microstructural behavior of welded specimens.…”

Section: Introductionmentioning

confidence: 99%

Comportamiento macromecánico de uniones soldadas de superficie (AA5083) utilizando soldadura con gas inerte de tungsteno con recocido de homogeneización en una sola etapa

Muzamil

Samiuddin

et al. 2020

REVMETAL

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Las uniones soldadas de superficie se consideran una estrategia avanzada e innovadora para lograr una resistencia aceptable sin consumir excesiva energía en la preparación de las muestras. Se soldaron dos superficies planas de la aleación AA5083 desde cuatro lados y utilizando el mismo material de relleno. En el análisis de la soldadura de superficie, se logró una profundidad de fusión de hasta 2 - 2,2 mm en cada lado, aunque la parte central permaneció sin fusionar. Después de la unión, se realizó un recocido de homogeneización a 275 y 325 °C durante 3 h, lo que aumentó el rendimiento de la unión hasta un 57,6%. Las micrografías ópticas de las zonas fusionadas han permitido la visibilidad de combinación alternativa de Al6(Mn, Fe) y Mg2Si con el aumento de la temperatura de recocido de 275 a 325 °C. Las observaciones de la superficie de la fractura incluyen el límite de la interface de la zona completamente fusionada (CFZ) y la zona fusionada del material base (BMFZ), que en combinación definieron todo el mecanismo de la fractura.

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Pitting corrosion behavior and mechanism of 5083 aluminum alloy based on dry‐wet cycle exposure

Wan

Jin

et al. 2022

Materials & Corrosion

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Electrochemical and surface analysis methods were used to investigate the pitting susceptibility and propagation of as-received and dry-wet cycle exposed 5083 aluminum alloy (AA5083) specimens. We find that dry-wet cycle exposure can reduce the corrosion potential, while increasing the corrosion current density, pitting potential (E p ), and passivation range. The pitting corrosion behavior during the dry-wet cycle process depends on the exposure temperature and time. Increased exposure temperature and time result in reduced pitting percentage and corrosion altitude and decreased microhardness of the corrosion products, which promotes the pitting sensitivity of AA5083. The underlying pitting mechanism is proposed by employing the morphology and microstructures of the corrosion products.

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Effect of homogenization on the corrosion behavior of 5083-H321 aluminum alloy

Cited by 43 publications

References 19 publications

Electrochemical Characteristics in Seawater for Cold Thermal Spray-Coated Al–Mg Alloy Layer

Electrochemical Characteristics in Seawater for Cold Thermal Spray-Coated Al–Mg Alloy Layer

Comportamiento macromecánico de uniones soldadas de superficie (AA5083) utilizando soldadura con gas inerte de tungsteno con recocido de homogeneización en una sola etapa

Pitting corrosion behavior and mechanism of 5083 aluminum alloy based on dry‐wet cycle exposure

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