Recent progress in magnesium–lithium alloys

Wu, Ruizhi; Yan, Yongde; Wang, G.; Murr, L. E.; Han, Wei; Zhang, Z.; Zhang, M.

doi:10.1179/1743280414y.0000000044

Cited by 272 publications

(79 citation statements)

References 208 publications

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“…These popular master alloys are often Al-Ti-B based [2]. For instance, Wang et al [9] used a TiBor master alloy at 0.3 wt.% to successfully refine the grains in the AZ31B alloy. The reduction in grain size was significant, with a decrease of approximately 90% [3].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Assessment of Modified Ultra-Light Magnesium-Lithium Alloys

Król

Mikuszewski

Kuc

et al. 2017

Archives of Metallurgy and Materials

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The paper presents the results of the influence of commercial TiBor and AlSr10 master alloys on the refine the grains size, hardness and crystallisation process based on the thermal-derivation analysis of light cast magnesium-lithium-aluminium alloys. The effects of TiBor and AlSr10 content on the characteristic parameters of the crystallisation process of Mg-Li-Al alloys were investigated by thermal-derivative analysis (TDA). Microstructural evaluations were identified by light microscope, X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy.The results showed that the addition of TiBor master alloy reduced the grain size of Mg-9Li-1.5Al cast alloy from 900 μm to 500 μm, while the addition of AlSr10 master alloy reduced the grain size of investigated cast alloy from 900 μm to 480 μm. Moreover, an addition of TiBor and AlSr10 simultaneously reduced the grain size from 900 μm to 430 μm.Results from the thermal-derivative analysis showed that the addition of grain refinement causes a decrease in nucleation temperature and solidus temperature.

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Section: Introductionmentioning

confidence: 99%

“…This dual-phase composition has great formability and extra-low density but manifests a reduced mechanical property and a weak corrosion resistance [2,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Assessment of Modified Ultra-Light Magnesium-Lithium Alloys

Król

Mikuszewski

Kuc

et al. 2017

Archives of Metallurgy and Materials

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“…For that reason, the Mg-Li system is of both theoretical and practical interest [1]. Binary Mg-Li phase diagram shows that Li alloying between 5.5 wt.% and 11.5 wt.% produces dual-phase α + β structured Mg-Li alloys in which h.c.p.…”

Section: Introductionmentioning

confidence: 99%

Strengthening in dual-phase structured Mg-Li-Zn alloys

Kúdela¹,

Švec²,

Bajana³

et al. 2016

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Proof stress Rp0.2 of dual-phase α + β structured Mg-Li and Mg-Li-Zn alloys has been inspected in terms of the strengthening contributions of α-and β-phases. The alloys studied with a variable fraction of α-and β-phases have been subjected to compression straining tests, microhardness measurements and structural analysis by EDX and XRD. Alloying with 1.5 wt.% Zn results in the hardening of both α-and β-phases which however exhibit different hardening responses due to different Zn enrichment. The rule of the mixture has been used to interpret Rp0.2 values by taking into account the fraction of α-and β-phases and their strength level represented by their microhardness. Compression stress-strain curves indicate that work hardening of alloys studied depends considerably on the fraction of α-phase and is higher for Zn-containing alloys.K e y w o r d s : Mg-Li, Mg-Li-Zn, dual-phase alloy, solution hardening, ageing, work hardening

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“…Alloying magnesium with lithium can also modify the crystal structure of magnesium. Magnesium-lithium alloys are commonly classified into three classes, according to the lithium content [1][2][3][4]. When the lithium content is below 5.7 mass%, the alloy is composed of the a phase, with a hexagonal close-packed crystal structure and is a solid solution of lithium in magnesium.…”

Section: Introductionmentioning

confidence: 99%

Refinement effect of RE in light weight Mg–Li–Al alloys

Król

Staszuk

Mikuszewski

et al. 2018

J Therm Anal Calorim

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The effect of 2 mass% rare earth elements (RE) as in mischmetal state on the structure, thermal behaviour and mechanical properties of Mg-xLi-4Al (x = 4, 8 and 12 by mass percentage). The thermo-derivative analysis was implemented using the UMSA platform (Universal Metallurgical Simulator and Analyzer) with cooling rate approx. & 0.6°C s -1 that correspond to natural cooling. Microstructural evaluations were identified by X-ray diffraction, scanning electron microscopy, light microscope and energy-dispersive X-ray spectroscopy. Obtained results from the thermal derivative analysis allowed determining the solidification pathways for Mg-Li-Al-RE alloy. The addition of grain refinement causes changes in crystallisation process. The addition of RE elements affected an enhancement in mechanical properties, which was associated with the development of intermetallic compounds; the maximum increases in hardness at level 240% was observed for single a-phase alloy and at level 19% for a ? b alloy.

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Recent progress in magnesium–lithium alloys

Cited by 272 publications

References 208 publications

Thermal Assessment of Modified Ultra-Light Magnesium-Lithium Alloys

Thermal Assessment of Modified Ultra-Light Magnesium-Lithium Alloys

Strengthening in dual-phase structured Mg-Li-Zn alloys

Refinement effect of RE in light weight Mg–Li–Al alloys

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