The effect of double extrusion on the microstructure and mechanical properties of Mg–Zn–Ca alloy

Du, Yuzhou; Zheng, M.Y.; Qiao, Xiaoguang; Wu, Kun; Liu, X.D.; Wang, G.J.; Lv, Xiaoling; Li, M.J.; Liu, X.L.; Wang, Z.J.; Liu, Y.T.

doi:10.1016/j.msea.2013.06.054

Cited by 57 publications

(20 citation statements)

References 35 publications

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“…The specimens for EBSD analysis was initially ground using emery papers, followed by electro-polished with a solution of 37.5% orthophosphoric acid and 62.5% ethanol at an electric current value of 0.1-0.5 A for 10-60 s at a temperature lower than 20 1C. Textures of the extruded alloys were measured by Siemens X-ray diffractometer D5000, and the (0001), and (11)(12)(13)(14)(15)(16)(17)(18)(19)(20) pole figures were recalculated using the X'Pert texture software.…”

Section: Methodsmentioning

confidence: 99%

“…7 shows the variation of ultimate tensile strength of the asextruded Mg-Zn-Ca-Ce alloy with temperature. The tensile properties of the as-extruded Mg-4.5Zn-1.1Ca [17] and ZK60-1Ce [18] alloys are also included. It can be clearly seen that the strength of the as-extruded Mg-Zn-Ca-Ce alloy is lower than ZK60-1Ce alloy at ambient temperature, but the strength of ZK60-1Ce alloy decreases rapidly with increasing temperature, indicating that Mg-Zn-Ca-Ce has superior heat resistance.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…The variation of ultimate tensile strength of as-extruded Mg-5.3Zn-0.2Ca-0.5Ce, Mg-Mg-4.5Zn-1.1Ca[17] and ZK60-1Ce[18] alloys with temperatures.…”

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confidence: 99%

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The microstructure, texture and mechanical properties of extruded Mg–5.3Zn–0.2Ca–0.5Ce (wt%) alloy

Qiao

Zheng

et al. 2015

Materials Science and Engineering: A

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124

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Section: Methodsmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

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The microstructure, texture and mechanical properties of extruded Mg–5.3Zn–0.2Ca–0.5Ce (wt%) alloy

Qiao

Zheng

et al. 2015

Materials Science and Engineering: A

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124

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“…Mg-Zn series alloys have received widespread attention owing to their low cost, high creep resistance and biocompatibility [1][2][3]. However, these alloys exhibit some limitations, such as poor formability and poor mechanical properties at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Tensile Properties and Work Hardening Behavior of an Extruded Mg–Zn–Ca–Mn Magnesium Alloy

Nie

Zhu

Munroe

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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A new Mg-2.2 wt% Zn alloy containing 1.8 wt% Ca and 0.5 wt% Mn has been developed and subjected to extrusion under different extrusion parameters. The finest (~ 0.48 μm) recrystallized grain structures, containing both nano-sized MgZn 2 precipitates and α-Mn nanoparticles, were obtained in the alloy extruded at 270 °C/0.01 mm s −1 . In this alloy, the deformed coarse-grain region possessed a much stronger texture intensity (~ 32.49 mud) relative to the recrystallized fine-grain region (~ 13.99 mud). A positive work hardening rate in the third stage of work hardening curve was also evident in the alloy extruded at 270 °C, which was related to the sharp basal texture and which provided insufficient active slip systems. The high work hardening rate in the fourth stage contributed to the high ductility extruded at 270 °C/1 mm s −1 . This alloy exhibited a weak texture, and the examination of fracture surface revealed highly dimpled surfaces. The optimum tensile strength was achieved in the alloy extruded at 270 °C/0.01 mm s −1 , and the yield strength, ultimate tensile strength and elongation to failure were ~ 364.1 MPa, ~ 394.5 MPa and ~ 7.2%, respectively. Fine grain strengthening from the recrystallized fine-grain region played the greatest role in the strength increment of this alloy compared with Orowan strengthening and dislocation strengthening in the deformed coarse-grain regions.

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“…The effects of chemical composition and processing parameters on the mechanical properties of the extruded Mg-Zn-Ca alloys have mainly been studied using room temperature tensile and/or compression tests [14][15][16][17][18]. Moreover, efforts have been made using thermodynamic calculations aiming for the optimization of the phase configuration in order to achieve high strength and ductility in extruded Mg-Zn-Ca alloys [19].…”

Section: Introductionmentioning

confidence: 99%

Contributions of different strengthening mechanisms to the shear strength of an extruded Mg–4Zn–0.5Ca alloy

Naghdi

Mahmudi

Kang

et al. 2015

Philosophical Magazine

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The shear deformation behaviour of an extruded Mg-4Zn-0.5Ca alloy was studied using shear punch testing at room temperature. The extrusion process effectively refined the microstructure, leading to a grain size of 4.6 ± 1.4 μm.Contributions of different strengthening mechanisms to the room temperature shear yield stress, and overall flow stress of the material, were calculated. These mechanisms include dislocation strengthening, grain boundary strengthening, solid solution hardening and strengthening resulting from second-phase particles. Grain boundary strengthening and solid solution hardening made significant contributions to the overall strength of the material, while the contributions of second-phase particles and dislocations were trivial. The observed differences between calculated and experimental strength values were discussed based on the textural softening of the material.

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The effect of double extrusion on the microstructure and mechanical properties of Mg–Zn–Ca alloy

Cited by 57 publications

References 35 publications

The microstructure, texture and mechanical properties of extruded Mg–5.3Zn–0.2Ca–0.5Ce (wt%) alloy

The microstructure, texture and mechanical properties of extruded Mg–5.3Zn–0.2Ca–0.5Ce (wt%) alloy

Microstructure, Tensile Properties and Work Hardening Behavior of an Extruded Mg–Zn–Ca–Mn Magnesium Alloy

Contributions of different strengthening mechanisms to the shear strength of an extruded Mg–4Zn–0.5Ca alloy

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