Improvement of mechanical properties and reduction of yield asymmetry of extruded Mg-Sn-Zn alloy through Ca addition

Chai, Yanfu; Jiang, Bin; Song, Jiangfeng; Wang, Qinghang; Gao, Hang; Liu, Bo; Huang, Guangsheng; Zhang, Dingfei; Pan, Fusheng

doi:10.1016/j.jallcom.2018.12.109

Cited by 74 publications

(24 citation statements)

References 56 publications

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“…It should be noted that TYS of the studied alloy is higher than that of Mg-Al and/or Mg-Zn based alloys studied in Refs. Tang et al (2011), Nakata et al (2015), Kim and Park (2016), Bae et al (2018), Xiao et al (2019), and Chai et al (2019b). Some reported Mg-Al-Zn alloys exhibit higher TYS (Park et al, 2015;Kim et al, 2017), while these alloys present relatively poor elongation when compared with the studied TMX-1.0 alloy.…”

Section: Tensile Propertiesmentioning

confidence: 83%

“…Liao et al (2019) fabricated a system of Mg-1Sn-Mn based alloys with high mechanical properties through extrusion. Chai et al (2019b) reported that Mg-1Sn-0.5Zn based alloys exhibited improved tensile ductility via the addition of low amount of Ca (≤1 wt.%). While, there have been rarely few reports on the combined addition of low content of Mn and Ca to the Mg-1Sn based alloys thus far.…”

Section: Introductionmentioning

confidence: 99%

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Microstructural Characteristics and Mechanical Properties of a Novel Extruded Dilute Mg–Sn–Mn–Ca Alloy

et al. 2019

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A novel dilute Mg-Sn-Mn-Ca (TMX) alloy system was developed and subjected to extrusion with a relatively high extrusion ratio of 36. The grain structure, nanoscale precipitates, texture, and tensile properties of the extruded dilute alloy were investigated. The results indicated that complete dynamic recrystallization (DRX) together with some nanoscale and/or sub-microscale Mg 2 Sn and Mg 2 Ca precipitates could be obtained after extrusion. The tensile yield strength, ultimate tensile strength and elongation of the extruded dilute alloy were 213 and 266 MPa, and 21%, respectively. The correlation between microstructural characteristics and properties was also discussed.

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Section: Tensile Propertiesmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Microstructural Characteristics and Mechanical Properties of a Novel Extruded Dilute Mg–Sn–Mn–Ca Alloy

et al. 2019

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“…In this work, the dynamically precipitated W phase nanoparticles were mainly below 150 nm. Therefore, the DRX behavior could be delayed by the W phase nanoparticles, and the nanoparticles also acted as effective pinning sites to inhibit the growth of DRXed grains, contributing to grain refinement …”

Section: Resultsmentioning

confidence: 99%

“…Thus, they could retard the motion of dislocations during deformation, strengthening the matrix through the Orowan mechanism. The improvement in strength is inversely proportional to the diameter of W phase particles ( d p ) and proportional to the volume fraction of the particles ( V p ), and

Δ σ_{Orowan}

can be presented as

Δ σ_{Orowan} = \frac{0.13 G_{m} b}{d_{italicp} 3extrue[{(\frac{1}{2 V_{italicp}})}^{\frac{1}{3}} - 1 3extrue]} \ln (\frac{d_{p}}{2 b})

…”

Section: Resultsmentioning

confidence: 99%

“…Recently, Mg alloys have been attracting increasing attention as structural materials because of their high specific strength and stiffness . However, due to the poor absolute strength and ductility, the widespread application for Mg alloys is severely restricted . Mg–Zn–Y alloys containing long‐period stacking‐ordered (LPSO) structure have shown promising application prospects owing to distinctive microstructure and outstanding performance …”

Section: Introductionmentioning

confidence: 99%

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Enhanced Performance of Mg–Zn–Y–Mn Alloy via Minor Ca Addition

et al. 2019

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Herein, the effect of calcium (Ca) microalloying on the microstructure and mechanical properties of Mg94Zn2.5Y2.5Mn1 alloy is identified. The long‐period stacking‐ordered (LPSO) phase transformation mechanism during solid‐solution treatment and hot deformation behavior during extrusion process are analyzed. The role of minor (0.34 at%) Ca addition in the as‐cast alloy is related to the fine microstructure and abundant 18R‐LPSO phase. Furthermore, the precipitation of 14H‐LPSO phase is greatly induced by Ca addition in subsequent solid‐solution treatment. As for as‐extruded alloys, the dynamic precipitation behavior of W phase nanoparticles is found. The high‐density W phase nanoparticles suppress the dynamic recrystallization (DRX) behavior and inhibit the growth of dynamical recrystallized (DRXed) grains. The as‐extruded Ca‐modified alloy shows a superior mechanical property with yield strength (YS), ultimate tensile strength (UTS), and elongation of 400, 434 MPa, and 19.5%, respectively. The tiny microstructure, W phase nanoparticles, and kinky LPSO (both 18R and 14H type) phase are the reasons for the outstanding mechanical properties.

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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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Improvement of mechanical properties and reduction of yield asymmetry of extruded Mg-Sn-Zn alloy through Ca addition

Cited by 74 publications

References 56 publications

Microstructural Characteristics and Mechanical Properties of a Novel Extruded Dilute Mg–Sn–Mn–Ca Alloy

Microstructural Characteristics and Mechanical Properties of a Novel Extruded Dilute Mg–Sn–Mn–Ca Alloy

Enhanced Performance of Mg–Zn–Y–Mn Alloy via Minor Ca Addition

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

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