Microstructure evolution and hot extrusion behavior of AZ31-Nd magnesium alloy adopting AZ31 chips and Mg-Nd chips

Wang, Dianjun; Hu, Maoliang; Sugiyama, Sumio; Ji, Zesheng; Xu, Hongbin; Wang, Ye

doi:10.1016/j.rinp.2019.102622

Cited by 9 publications

(3 citation statements)

References 17 publications

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“…In this regard, neodymium (Nd) containing magnesium alloys received particular attention due to their excellent strength and ductility [12,13,14,15,16].…”

Section: Introductionmentioning

confidence: 99%

Dynamic recrystallization and deformation constitutive analysis of Mg–Zn-Nd-Zr alloys during hot rolling

Kong

Yang

Chen

et al. 2022

Heliyon

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“…In this regard, neodymium (Nd) containing magnesium alloys received particular attention due to their excellent strength and ductility [12,13,14,15,16].…”

Section: Introductionmentioning

confidence: 99%

Dynamic recrystallization and deformation constitutive analysis of Mg–Zn-Nd-Zr alloys during hot rolling

Kong

Yang

Chen

et al. 2022

Heliyon

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“…Therefore, these rare earth compounds can hinder the dislocation movement during the deformation of the magnesium alloy and form stress concentrations around them. The large rare earth compounds are easy to initiate microcracks as crack sources, thus consuming part of strain energy storage [17][18][19]. In addition, the study shows that rare earth compounds also have the potential advantage of promoting recrystallization nucleation [20].…”

Section: Introductionmentioning

confidence: 99%

Effect of twinning and Al–Nd phase on dynamic recrystallization in rolled Mg–Al–Zn–Nd alloy at the moderate strain rate

Cui

Wang

et al. 2021

Mater. Res. Express

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The dynamic recrystallization of Mg-Al-Zn-Nd alloy during moderate strain rate rolling was studied using electron backscatter diffraction (EBSD) and an energy dispersive spectrometer (EDS). The results showed three kinds of twinnings produced in the alloy in the strain rate range of 4.2 s-1 ~ 7.3 s-1, including {101 ̅2} extension twinning, {101 ̅1} contraction twinning, and {101 ̅1}-{101 ̅2} double twinning. The extension twinnings decreased gradually with the increase of strain rate. The dynamic recrystallization mechanisms during hot rolling under moderate strain rate conditions mainly include grain boundary nucleation, twinning nucleation, and secondary particle assistant nucleation. The dynamic recrystallization mechanism induced by twinning is mainly {101 ̅1}-{101 ̅2} double twinnings. In addition, the strain value near the Al-Nd phase and grain boundary is higher than in grain. The Al-Nd particles in Mg-Al-Zn-Nd alloy play an auxiliary nucleation effect on dynamic recrystallization during hot rolling deformation.

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“…In particular, rare earth elements could not only improve the formability through texture modification but also significantly improve the high-temperature stability of magnesium alloy. In this regard, neodymium (Nd) containing magnesium alloys receive particular attention due to their excellent strength and ductility [8][9][10][11][12]. There is no doubt that dynamic recrystallisation and static restoration, which occurs in magnesium alloys during thermal machining and subsequent heat treatment process, will result in great grain refinement.…”

mentioning

confidence: 99%

Microstructure evaluation and thermal deformation behaviours of wrought magnesium alloys

Kong

Xie

Wei

et al. 2023

Materials Science and Technology

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Due to the large orientation gradient, the dynamic recrystallisation of Mg–Zn–Nd–Zr wrought alloy occurred first around grain boundaries. The Nd-rich second phase promoted the nucleation of recrystallisation. With the increasing strain, more non-basal plane slip occurred near the grain boundary, which caused the adjacent subgrain boundary merging into a high angle grain boundary. In addition, some twin intersecting regions gathered high-density dislocation, leading to twin dynamic recrystallisation. By deducing the stress–strain constitutive relation during thermal deformation and analysing the relation between the apparent value of constant creep exponent ( n) and the corresponding deformation mechanism, the dominant mechanism of dislocation sliding and climbing during dynamic recrystallisation was deduced backwards.

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Microstructure evolution and hot extrusion behavior of AZ31-Nd magnesium alloy adopting AZ31 chips and Mg-Nd chips

Cited by 9 publications

References 17 publications

Dynamic recrystallization and deformation constitutive analysis of Mg–Zn-Nd-Zr alloys during hot rolling

Dynamic recrystallization and deformation constitutive analysis of Mg–Zn-Nd-Zr alloys during hot rolling

Effect of twinning and Al–Nd phase on dynamic recrystallization in rolled Mg–Al–Zn–Nd alloy at the moderate strain rate

Microstructure evaluation and thermal deformation behaviours of wrought magnesium alloys

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