Enhanced Strength and Corrosion Resistance of Mg–2Zn–0.6Zr Alloy with Extrusion

Wang, Luanxiang; Song, Ren‐Jie; Cai, Chen-Bo; Li, Jingyuan

doi:10.1007/s40195-018-0793-6

Cited by 17 publications

(6 citation statements)

References 46 publications

(59 reference statements)

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“…Similar results have been found in the investigations of A 2 B 7 -type and AB 2 -type alloys [29,30]. The grain refinement is in favor of enhancing the strength and toughness of alloys, consequently improving their anti-pulverization capability [31]. Synthetically analyzing the XRD curves above and the EDX curves as shown in Fig.…”

Section: Methodssupporting

confidence: 81%

Structure and Electrochemical Hydrogen Storage Properties of as-Milled Mg–Ce–Ni–Al-Based Alloys

Zhang

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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At room temperature, crystalline Mg-based alloys, including Mg 2 Ni, MgNi, REMg 12 and La 2 Mg 17 , have been proved with weak electrochemical hydrogen storage performances. For improving their electrochemical property, the Mg is partially substituted by Ce in Mg-Ni-based alloys and the surface modification treatment is performed by mechanical coating Ni. Mechanical milling is utilized to synthesize the amorphous and nanocrystalline Mg 1−x Ce x Ni 0.9 Al 0.1 (x = 0, 0.02, 0.04, 0.06, 0.08) + 50 wt%Ni hydrogen storage alloys. The effects made by Ce substitution and mechanical milling on the electrochemical hydrogen storage property and structure have been analyzed. It shows that the as-milled alloys electrochemically absorb and desorb hydrogen well at room temperature. The as-milled alloys, without any activation, can reach their maximal discharge capacities during first cycling. The maximal value of the 30-h-milled alloy depending on Ce content is 578.4 mAh/g, while that of the x = 0.08 alloy always grows when prolonging milling duration. The maximal discharge capacity augments from 337.4 to 521.2 mAh/g when milling duration grows from 5 to 30 h. The cycle stability grows with increasing Ce content and milling duration. Concretely, the S 100 value augments from 55 to 82% for the alloy milled for 30 h with Ce content rising from 0 to 0.08 and from 66 to 82% when milling the x = 0.08 alloy mechanically from 5 to 30 h. The alloys' electrochemical dynamics parameters were measured as well which have maximum values depending on Ce content and keep growing up with milling duration extending.

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Section: Methodssupporting

confidence: 81%

Structure and Electrochemical Hydrogen Storage Properties of as-Milled Mg–Ce–Ni–Al-Based Alloys

Zhang

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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“…After that, the pH becomes almost constant even up to 7 days of immersion. Hence, the Sm coating favors the cell adhesion and proliferation because the pH remains below 9 …”

Section: Resultsmentioning

confidence: 99%

“…Hence, the Sm coating favors the cell adhesion and proliferation because the pH remains below 9. 27 The corrosion rate of the bare alloy was dramatically fluctuating. The bare alloy exhibited maximum corrosion of 5.5 mm/yr at 24 h. However, it decreased as time increases because of the rise in pH.…”

Section: Immersion Studiesmentioning

confidence: 99%

Anticancer Activity of Samarium-Coated Magnesium Implants for Immunocompromised Patients

Kannan

Rajendran

2020

ACS Appl. Bio Mater.

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The removal of tumors in the osseous tissue leads to functional disorders. To overcome this issue, biodegradable implants are used to replace the damaged part of the system. In the study, samarium oxide was coated on the anodic layer of AZ31 magnesium alloy. The potentiodynamic polarization, electrochemical impedance, and localized electrochemical impedance spectroscopy studies were carried out for the samarium-coated magnesium alloy. The corrosion resistance of the coating improved several folds than the bare alloy. The apatite formed on the 3rd day of immersion in the simulated body fluid showed cuboid and triangular structures, whereas on the 7th day, it exhibited a sea sponge-like appearance. The coating exhibited inherent anticancer and antibacterial properties. Our work suggests that the samarium coating is expected to be a promising orthopedic implant for preventing tumor relapse and metastasis.

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“…The Mg alloy has attracted more attention due to its high specific stiffness, high specific strength and environmental and easy recycling [1,2]. The Mg alloy has been widely employed in vehicles, communication and consumer electronics industry [3][4][5]. The rapid demand for the Mg alloy results in the massive losses and waste during the manufacturing process of Mg alloy [6,7].…”

Section: Introductionmentioning

confidence: 99%

Integrated Extrusion–Shear Forming Process of the Solid-State Recycled AZ80 Magnesium Alloy via Hot Press Sintering

Teng

Zhang

2020

Acta Metall. Sin. (Engl. Lett.)

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The consolidation recycled AZ80 billets were successfully fabricated through the cold press and hot press sintering of the AZ80 metal chips. The consolidation recycled billets sintered at 350 °C present the comparable compressive properties and inferior tensile properties compared with the initial cast billets. The defects in the consolidation recycled billet were inclined to propagate along the bond interface between the metal chips during tension, which resulted in the inferior tensile properties of the recycled billets. The recycled billets were then subjected to the integrated extrusion-shear (ES) process. The homogeneous finer dynamic recrystallization grains with an average grain size of 6 μm can be obtained in the shear deformation zone and extrusion sizing zone through integrated ES process at 300 °C with an extrusion velocity of 0.6 mm/s. The recycled billets after integrated ES forming process present rival tensile properties compared with the initial cast billets after integrated ES forming with the same extrusion parameters, which can be ascribed to that the integrated ES forming can nearly eliminate the defects through the severe compressive and shear strain. The solid-state recycling process through hot press sintering and subsequent integrated ES process can fabricate the consolidation recycled AZ80 rod, which demonstrates the comparable tensile properties with the cast-extrusion rod.

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Enhanced Strength and Corrosion Resistance of Mg–2Zn–0.6Zr Alloy with Extrusion

Cited by 17 publications

References 46 publications

Structure and Electrochemical Hydrogen Storage Properties of as-Milled Mg–Ce–Ni–Al-Based Alloys

Structure and Electrochemical Hydrogen Storage Properties of as-Milled Mg–Ce–Ni–Al-Based Alloys

Anticancer Activity of Samarium-Coated Magnesium Implants for Immunocompromised Patients

Integrated Extrusion–Shear Forming Process of the Solid-State Recycled AZ80 Magnesium Alloy via Hot Press Sintering

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