A systematic investigation of secondary phase dissolution in Mg–Sn alloys

Dev, Arushi; Naskar, Niladri; Kumar, N.; Jena, Ashutosh; Paliwal, Manas

doi:10.1016/j.jma.2019.11.002

Cited by 16 publications

(2 citation statements)

References 17 publications

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“…It should be noticed that the content of Mg 2 Sn particles is much higher than that of MgZn 2 . This is mainly caused by the difference of solid solubility of Sn [ 28 ] and Zn [ 20 ] in Mg. The high‐magnified SEM images show that the strip‐like Mg 2 Sn is broken into granular particles with an average size of 5 μm, which is considered as the result of hot rolling.…”

Section: Resultsmentioning

confidence: 99%

Improving Strength and Electromagnetic Shielding Effectiveness of Mg–Sn–Zn–Ca–Ce Alloy by Sn Addition

Chen

Luo

et al. 2021

Adv Eng Mater

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The strength and electromagnetic shielding capability are two essential requirements for lightweight metallic materials as shielding materials. However, it is still a challenge to develop magnesium (Mg) alloys with both high strength and favorable electromagnetic shielding capability. Herein, the results show that alloying with Sn in Mg–xSn–Zn–Ca–Ce alloys simultaneously increases both strength and electromagnetic shielding effectiveness (SE). After Sn alloying, the average grain size of the alloys is greatly reduced, whereas the intensity of basal texture is enhanced, and the precipitation of Mg2Sn phase is promoted. The Mg–3Sn–Zn–Ca–Ce alloy attains best comprehensive mechanical properties and electromagnetic SE (ultimate tensile strength (UTS) of 337 MPa and SE of 91–114 dB) in Sn containing alloys. The increase in strength is attributed to the combination of grain refinement, texture strengthening, and precipitation strengthening. The great electromagnetic SE is mainly due to the regularly arranged Mg2Sn precipitates in the basal plane.

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Section: Resultsmentioning

confidence: 99%

Improving Strength and Electromagnetic Shielding Effectiveness of Mg–Sn–Zn–Ca–Ce Alloy by Sn Addition

Chen

Luo

et al. 2021

Adv Eng Mater

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“…In Mg alloys containing Zn or Sn elements, such as Mg-Zn-Sn, Mg-Zn, and Mg-Sn alloys, the second phases usually include MgZn 2 , Mg 4 Zn 7 , Mg 2 Zn 11 , Mg 2 Sn, etc. [31][32][33][34][35][36][37][38]. In Mg alloys, the Mn element usually forms the α-Mn particles, promotes grain refinement, and improves the corrosion resistance [39,40].…”

Section: Introductionmentioning

confidence: 99%

Study on the Microstructure of Mg-4Zn-4Sn-1Mn-xAl As-Cast Alloys

Liu,

Du,

Peng

et al. 2023

Materials

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In this study, the microstructure of the Mg-4Zn-4Sn-1Mn-xAl (x = 0, 0.3 wt.%, denoted as ZTM441 and ZTM441-0.3Al) as-cast alloys was investigated using scanning electron microscopy (SEM), focused-ion/electron-beam (FIB) micromachining, transmission electron microscopy (TEM), and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). The analysis results revealed that the microstructure of the ZTM441 and ZTM441-0.3Al as-cast alloys both mainly consist of the α-Mg matrix, skeleton-shaped MgZn2 eutectic texture, block-shaped Mg2Sn, and Zn/Sn-rich nanoscale precipitate bands along the grain boundary and the interdendrite. Nanoscale α-Mn dispersoids formed in the grain in the ZTM441 alloy, while no α-Mn formed in the ZTM441-0.3Al alloy instead of nanoscale Al3Mn2 particles. In the ZTM441 as-cast alloy, part of the Zn element is dissolved into the α-Mn phase, and part of the Mn element is dissolved into the MgZn2 phase, but in the ZTM441-0.3Al alloy, there are no such characteristics of mutual solubility. Zn and Mn elements are easy to combine in ZTM441 as-cast alloy, while Al and Mn are easy to combine in ZTM441-0.3Al as-cast alloy. The Mg-Zn phases have not only MgZn2-type crystal structure but also Mg4Zn7- and Mg149Zn-type crystal structure in the ZTM441-0.3Al as-cast alloy. The addition of Al changes the combination of Mn and Zn, promotes the formation of Al3Mn2, and the growth of the grain.

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