Influence of Ca-Ce/La synergistic alloying on the microstructure and mechanical properties of extruded Mg–Zn alloy

Zhang, J.B.; Tong, L.B.; Xu, Chao; Jiang, Zhonghao; Cheng, Liren; Kamado, Shigeharu; Zhang, H.J.

doi:10.1016/j.msea.2017.09.113

Cited by 56 publications

(12 citation statements)

References 26 publications

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“…Stanford et al [23] found that the strength of magnesium was greatly improved by adding 0.22-4.65% Gd, owing to the mechanisms of recrystallized grain refinement and solution strengthening. Zhang et al [24] revealed that the synthetic additions of Ca, Ce and La to the Mg-6.0Zn alloy resulted in the refinement of secondary phases and precipitates, promoting the pining effect to restrict grain growth and the dispersion strengthening effect. Homma et al [25] developed a high-strength magnesium alloy Mg-1.8Gd-1.8Y-0.7Zn-0.2Zr with an ultimate tensile strength (UTS) of 542 MPa and a 0.2% proof stress of 473 MPa.…”

Section: Introductionmentioning

confidence: 99%

Investigation into the Extrudability of a New Mg-Al-Zn-RE Alloy with Large Amounts of Alloying Elements

Bai

Fang

Zhou

2019

Metall Mater Trans A

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Section: Introductionmentioning

confidence: 99%

Investigation into the Extrudability of a New Mg-Al-Zn-RE Alloy with Large Amounts of Alloying Elements

Bai

Fang

Zhou

2019

Metall Mater Trans A

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“…As Zn content exceeds solid solution limit in magnesium substrate, solid–liquid temperature range in crystallization process becomes too large to cause grain refinement. [ 34 ] Furthermore, no shrinkages are seen on alloy surfaces, suggesting that molding defects have been significantly reduced by extrusion casting.…”

Section: Resultsmentioning

confidence: 99%

Microstructures and electrochemical behaviors of as‐cast magnesium alloys with enhanced compressive strengths and corrosion decomposition

Tian

et al. 2020

Materials & Corrosion

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Rapidly disintegrating alloys with enhanced compressive strengths and corrosion rates are prepared for fracturing parts in petroleum extraction. Extrusion casting is used to prepare Mg-xZn-Zr alloys by adjusting zinc content. Mechanical and electrochemical behaviors are investigated to evaluate the practicability as decomposable materials. Superficial topographies, compositions, phases, and distributions are also characterized to determine the dissociative mechanism. The results make clear that matrixes and secondary structures with reticulate shapes arise on surfaces. The material also possesses enhanced compressive strength to guarantee stabilization and pressureholding ability among decomposition. Concurrently, with the increase of zinc content and decomposition time, galvanic corrosion aggravates resulting in gradually reduced corrosion potentials and accelerated decomposition rates. Rapid material dissolution mainly attributes to anode corrosion of matrixes, peeling of microparticles, and inferior tolerance of corrosive products to dissolution. Such work highlights potential applications of fracturing materials for ensuring rapid decomposition and guaranteeing stable stress tolerance.

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“…INTRODUCTION Mg alloys attract attention especially from the automotive and aerospace industries due to their low density and high strength [1]. HCP (hexagonal package structure) reduces the easy forming of Mg alloys and weakens the competitiveness of sheet Mg products [2]. It is known that rare earth elements increase the formability of AZ31 Mg alloy [3].…”

Section: Imentioning

confidence: 99%

“…After the SP process, the surface of the samples was cleaned with alcohol and dried. Micro arc oxidation process followed: 25x25x12mm samples previously sanded up and cleaned with ultrasonic cleaning device were immersed in 4g/lt sodium silicate, 1g/lt potassium hydroxide and 3g/lt disodium hydrogen phosphate containing 4lt pure water medium under 85mA/cm 2 density and 250Hz frequency for 5min. Immersion corrosion test in 3.5% NaCl solution was applied to the 2mm sheets for 168 hours.…”

Section: Experimental Studymentioning

confidence: 99%

The Immersion Corrosion Resistance of Shot Peening and MAO Applied on AZ31−0.5% La Sheets

Kara

Ahlatçı

et al. 2020

Eng. Technol. Appl. Sci. Res.

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In this study, the effect of Shot Peening (SP) and Micro Arc Oxidation (MAO) process on the corrosion resistance of 0.5% La with added AZ31 Mg alloy, hot rolled at different rolling speeds, was investigated. It was found that the surface of the rolled material at a rolling speed of 4.7m/min had higher surface smoothness values than the one rolled at 10m/min. It was observed that the corrosion rate changed in the first 40 of 168 hours. In the following hours, the corrosion rate showed different results according to the initial microstructure properties of the base materials. Initially, pore size was the dominant factor determining corrosion resistance, although, after coating, the corrosion rate was affected by the twins formed, based on rolling speed, which enhanced the corrosion rate between 48 and 168 hours.

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Influence of Ca-Ce/La synergistic alloying on the microstructure and mechanical properties of extruded Mg–Zn alloy

Cited by 56 publications

References 26 publications

Investigation into the Extrudability of a New Mg-Al-Zn-RE Alloy with Large Amounts of Alloying Elements

Investigation into the Extrudability of a New Mg-Al-Zn-RE Alloy with Large Amounts of Alloying Elements

Microstructures and electrochemical behaviors of as‐cast magnesium alloys with enhanced compressive strengths and corrosion decomposition

The Immersion Corrosion Resistance of Shot Peening and MAO Applied on AZ31−0.5% La Sheets

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