Solid solution and precipitation strengthening effects in basal slip, extension twinning and pyramidal slip in Mg-Zn alloys

Li, N.; Wang, C.; Monclús, M.A.; Yang, Lingwei; Molina-Aldareguia, J.M.

doi:10.1016/j.actamat.2021.117374

Cited by 40 publications

(19 citation statements)

References 31 publications

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“…4c and 4d), in agreement with the smooth stress-strain curves. This deformation morphology is different from that observed in other Mg alloys compressed along a-axis (Li et al, 2021b(Li et al, , 2021aY. Liu et al, 2017;Wang et al, 2020;Wu et al, 2020), where two regions with different contrast were always observed after the deformation due to the nucleation of tensile twins.…”

Section: Deformation Mechanisms In Micropillar Of Grain Acontrasting

confidence: 99%

“…This behavior was mainly attributed to a reduction in the ratio between the CRSS of the < c+a > pyramidal slip and < a > basal slip, which was ~3.2 according to in situ high energy X-ray diffraction tests (Huang et al, 2018;Wang et al, 2018) and ~2.8-4.8 from micropillar compression tests (Wu et al, 2020). Large ductility and formability are not achieved, however, by the addition of other elements in solid solution (such as Al or Zn) because the pyramidal-to-basal CRSS ratio in these alloys are > 10 (Li et al, 2021a;Wang et al, 2020). Zhu et al, (2019) found that the addition of 0.47 wt.…”

Section: Introductionmentioning

confidence: 99%

“…Regarding the effect of solid solution on tensile twinning, several investigations reported an increase in the CRSS for twin nucleation and growth with the addition of Al (Wang et al, 2020), Zn (Li et al, 2021a), Y (Li et al, 2021b) as well as Ca to Mg-Zn alloys (Wang et al, 2021a). However, the CRSS for twin nucleation and growth were lower than that for <c+a> pyramidal slip in the corresponding alloy, thus, tensile twinning was still preferred over pyramidal slip to accommodate plastic deformation in grains suitable oriented for twinning.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Critical resolved shear stresses for slip and twinning in Mg-Y-Ca alloys and their effect on the ductility

Cui

Wang

et al. 2023

International Journal of Plasticity

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Section: Deformation Mechanisms In Micropillar Of Grain Acontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Critical resolved shear stresses for slip and twinning in Mg-Y-Ca alloys and their effect on the ductility

Cui

Wang

et al. 2023

International Journal of Plasticity

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“…[6][7][8][9]. It is well known that Mg-Zn binary system exhibits a significant age-hardening response during heat treatment [10]. Zn also plays an important role in hundreds of biological functions [11,12].…”

Section: Introductionmentioning

confidence: 99%

Tensile Properties and Wear Resistance of Mg Alloy Containing High Si as Implant Materials

Cong¹,

Zhang²,

Zhang³

et al. 2023

Journal of Renewable Materials

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Magnesium alloy has been considered as one of the third-generation biomaterials for the regeneration and support of functional bone tissue. As a regeneration implant material with great potential applications, in-situ Mg 2 Si phase reinforced Mg-6Zn cast alloy was comprehensively studied and expected to possess excellent mechanical properties via the refining and modifying of Mg 2 Si reinforcements. The present study demonstrates that the primary and eutectic Mg 2 Si phase can be greatly modified by the yttrium (Y) addition. The size of the primary Mg 2 Si phases can be reduced to ~20 μm with an addition of 0.5 wt.% Y. This phenomenon is mainly attributed to the poisoning effect of the Y element. Moreover, wear resistance and tensile properties of the ternary alloy have also been improved by the Y addition. Mg-6Zn-4Si-0.5Y alloy exhibits optimal tensile properties and wears resistance. The ultimate tensile strength and the elongation of the alloy with 0.5 wt.% Y are 50% and 65% higher than those of the ternary alloy, respectively. Excessive Y addition (1.0 wt.%) deteriorates the tensile properties of Mg-Zn-Si alloy. The improvement of the tensile properties is mainly due to the modification of primary and eutectic Mg 2 Si phases as well as the solid solution strengthening of the Y atoms. This study provides a certain implication for the application of Mg-Zn-Si alloys containing Y elements as regeneration implants.

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“…Appropriate alloying elements were introduced to achieve alloy strengthening by utilizing strengthening mechanisms such as grain size, secondary phase, solid solution and precipitation strengthening [9,10]. The effects of alloying elements, such as Al, Zn, Mn, Ca, and rare earth (RE), on the microstructure and mechanical properties of Mg alloys have been widely studied [2,[11][12][13][14][15]. The most widely used die-cast Mg alloys are Mg-Al series alloys, such as AZ91, AM50 and AE44 [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Gd on the Microstructure and Mechanical Properties of High-Pressure Die-Cast Mg-La-Ce Alloys at Ambient and Elevated Temperatures

Feng

Dong²,

Cai³

et al. 2022

SSRN Journal

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Solid solution and precipitation strengthening effects in basal slip, extension twinning and pyramidal slip in Mg-Zn alloys

Cited by 40 publications

References 31 publications

Critical resolved shear stresses for slip and twinning in Mg-Y-Ca alloys and their effect on the ductility

Critical resolved shear stresses for slip and twinning in Mg-Y-Ca alloys and their effect on the ductility

Tensile Properties and Wear Resistance of Mg Alloy Containing High Si as Implant Materials

Effect of Gd on the Microstructure and Mechanical Properties of High-Pressure Die-Cast Mg-La-Ce Alloys at Ambient and Elevated Temperatures

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