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.
AbdullaevRNSamoshkinDAAgazhanovASHeat capacity of pure magnesium and ultralight congruent magnesium–lithium alloy in the temperature range of 300 K to 825 K. J Eng Thermophys. 2021;30(2):207–212. DOI:10.1134/S1810232821020041
2.
TianJDengJMaRPre-control of annealing temperature on the uniformity of deformed structure of wrought magnesium alloy. Mater Lett. 2021;305:130820. DOI:10.1016/j.matlet.2021.130820
3.
XieQZhuZKangG.Crystal-plasticity-based dynamic constitutive model of AZ31B magnesium alloy at elevated temperature and with explicit plastic-strain-rate control. Acta Mech Solida Sin. 2020;33(1):31–50. DOI:10.1007/s10338-019-00130-6
4.
TangWLeeJYWangHUnloading behaviors of the rare-earth magnesium alloy ZE10 sheet. J Magnes Alloy. 2021;9(3):927–936. DOI:10.1016/j.jma.2020.02.023
5.
LiBZhangKShiGMicrostructure evolution, mechanical properties and creep mechanisms of Mg-12Gd-1MM-0.6Zr (wt%) magnesium alloy. J Rare Earths. 2021;39(5):600–608. DOI:10.1016/j.jre.2021.01.012
6.
KazemiAYangS.Effects of magnesium dopants on grain boundary migration in aluminum-magnesium alloys. Comput Mater Sci. 2021;188:110130. DOI:10.1016/j.commatsci.2020.110130
7.
ZenginHTurenYAhlatciHMicrostructure, mechanical properties and corrosion resistance of as-cast and as-extruded Mg–4Zn–1La magnesium alloy. Rare Met. 2018;39(8):909–917. DOI:10.1007/s12598-018-1045-7
8.
ZouQLeQChenXEffect of Nd-rich phases on the corrosion behavior of AZ80 magnesium alloy in alkaline solution. JOM. 2021;73(12):4376–4386. DOI:10.1007/s11837-021-04974-7
9.
WangDHuMSugiyamaSMicrostructure evolution and hot extrusion behavior of AZ31-Nd magnesium alloy adopting AZ31 chips and Mg-Nd chips. Results Phys. 2019;15:102622. DOI:10.1016/j.rinp.2019.102622
10.
MoNMcCarrollITanQRoles of Nd and Mn in a new creep-resistant magnesium alloy. Mater Sci Eng A. 2020;779:139152. DOI:10.1016/j.msea.2020.139152
11.
de OliveiraPCMontoroLAPerez-PradoMTDevelopment of segregations in a Mg–Mn–Nd alloy during HPT processing. Mater Sci Eng A. 2021;802:140423. DOI:10.1016/j.msea.2020.140423
12.
JiangNChenLMengLEffect of neodymium, gadolinium addition on microstructure and mechanical properties of AZ80 magnesium alloy. J Rare Earths. 2016;34(6):632–637. DOI:10.1016/S1002-0721(16)60072-8
13.
BaczmańskiAWrońskiMKotPThe role of basal slip in the generation of intergranular stresses in magnesium alloy studied using X-ray diffraction and modelling. Mater Des. 2021;202:109543. DOI:10.1016/j.matdes.2021.109543
14.
DuanXLiuJLiPMicrostructure and texture evolutions in AZ80A magnesium alloy during high-temperature compression. Mater Res Express. 2021;8(1):016535. DOI:10.1088/2053-1591/abdc53
15.
TamKJVaughanMWShenLModelling dynamic recrystallisation in magnesium alloy AZ31. Int J Plast. 2021;142:102995. DOI:10.1016/j.ijplas.2021.102995
16.
GaoMYangKTanLImprovement of mechanical property and corrosion resistance of Mg-Zn-Nd alloy by bi-direction drawing. J Mater Sci Technol. 2021;81:88–96. DOI:10.1016/j.jmst.2020.11.060
17.
GuoYLiuBXieWAnti-phase boundary energy of β series precipitates in Mg-Y-Nd system. Scripta Mater. 2021;193:127–131. DOI:10.1016/j.scriptamat.2020.11.004
18.
HaCBohlenJZhouXTexture development and dislocation activities in Mg-Nd and Mg-Ca alloy sheets. Mater Charact. 2021;175:111044. DOI:10.1016/j.matchar.2021.111044
19.
HongLWangRZhangX.The role of Nd in corrosion properties of Mg-12Gd-2Zn-0.4Zr alloys. J Mater Eng Perform. 2021;30(8):6000–6008. DOI:10.1007/s11665-021-05782-5
20.
XiaZXuGTaoXExperimental investigation of phase equilibria in the Mg-rich corner of Mg-Nd-Sc system. Mater Res Express. 2020;8(1):016502. DOI:10.1088/2053-1591/abd2f5
21.
XieKWangLGuoYEffectiveness and safety of biodegradable Mg-Nd-Zn-Zr alloy screws for the treatment of medial malleolar fractures. J Orthop Translat. 2021;27:96–100. DOI:10.1016/j.jot.2020.11.007
22.
ZhangJJiangBYangQRole of second phases on the corrosion resistance of Mg-Nd-Zr alloys. J Alloys Compd. 2020;849:156619. DOI:10.1016/j.jallcom.2020.156619
23.
ZhaoXLiZChenHOn the equilibrium intermetallic phase in Mg-Nd-Ag alloys. Metall Mater Trans A. 2020;51(3):1402–1415. DOI:10.1007/s11661-019-05580-8
24.
KongFSunYYaoS.Effect of heat treatment on Mg-9Gd-3Y-0.3Zr alloy microstructure and properties. IOP Conf Ser Mater Sci Eng. 2019;490(2):22072. DOI:10.1088/1757-899X/490/2/022072
25.
BourezgYIAzzeddineHHennetLThe sequence and kinetics of pre-precipitation in Mg-Nd alloys after HPT processing: a synchrotron and DSC study. J Alloys Compd. 2017;719:236–241. DOI:10.1016/j.jallcom.2017.05.166
26.
ZengXMinárikPDobroňPRole of deformation mechanisms and grain growth in microstructure evolution during recrystallization of Mg-Nd based alloys. Scripta Mater. 2019;166:53–57. DOI:10.1016/j.scriptamat.2019.02.045
27.
ZengJWangFWeiXA new constitutive model for thermal deformation of magnesium alloys. Metall Mater Trans A. 2020;51(1):497–512. DOI:10.1007/s11661-019-05528-y
28.
ZhengXDongJWangS.Microstructure and mechanical properties of Mg-Nd-Zn-Zr billet prepared by direct chill casting. J Magnes Alloy. 2018;6(1):95–99. DOI:10.1016/j.jma.2018.01.003
29.
HaghshenasM.Mechanical characteristics of bio-degradable magnesium matrix composites: a review.J Magnes Alloy. 2017;5(2):189–201. DOI:10.1016/j.jma.2017.05.001
30.
ShahinMWenCMunirKMechanical and corrosion properties of graphene nanoplatelet-reinforced Mg–Zr and Mg–Zr–Zn matrix nanocomposites for biomedical applications. J Magnes Alloy. 2022;10(2):458–477. DOI:10.1016/j.jma.2021.05.011
31.
SavaediZMotallebiRMirzadehH.A review of hot deformation behavior and constitutive models to predict flow stress of high-entropy alloys. J Alloys Compd. 2022;903:163964. DOI:10.1016/j.jallcom.2022.163964
32.
ZhongXWangLLiuF.Study on formation mechanism of necklace structure in discontinuous dynamic recrystallization of Incoloy 028. Chin shu hsüeh pao. 2018;54(7):969–980. DOI:10.11900/0412.1961.2017.00461
33.
MirzadehHRoostaeiMParsaMHDynamic recrystallization kinetics in Mg-3Gd-1Zn magnesium alloy during hot deformation. Int J Mater Res. 2016;107(3):277–279. DOI:10.3139/146.111333
34.
JalaliMSZarei-HanzakiAMosayebiMUnveiling the influence of dendrite characteristics on the slip/twinning activity and the strain hardening capacity of Mg-Sn-Li-Zn cast alloys. J Magnes Alloy. 2022. DOI:10.1016/j.jma.2022.03.016
35.
ChenYJinLDongJTwinning effects on the hot deformation behavior of AZ31 Mg alloy. Mater Charact. 2016;118:363–369. DOI:10.1016/j.matchar.2016.06.014
36.
PiaoKChungKLeeM-GTwinning-Slip transitions in Mg AZ31B. Metall Mater Trans A. 2012;43(9):3300–3313. DOI:10.1007/s11661-012-1154-0
37.
ZhouGJainMKWuPExperiment and crystal plasticity analysis on plastic deformation of AZ31B Mg alloy sheet under intermediate temperatures: how deformation mechanisms evolve. Int J Plast. 2016;79:19–47. DOI:10.1016/j.ijplas.2015.12.006
38.
YuY.Fundamentals of materials science. Beijing: Higher Education Press; 2012. Chinese.
39.
EletiRRChokshiAHShibataAUnique high-temperature deformation dominated by grain boundary sliding in heterogeneous necklace structure formed by dynamic recrystallization in HfNbTaTiZr BCC refractory high entropy alloy. Acta Mater. 2020;183:64–77. DOI:10.1016/j.actamat.2019.11.001
40.
JalaliMSZarei-HanzakiAJamiliAMThe effect of rare earth elements on the work softening behavior of as-cast Mg-4Al-2Sn. Mater Res Express. 2020;7(8):86509. DOI:10.1088/2053-1591/ab6777
41.
WangMChenCZhangZPlastic deformation behaviors and microstructural evolution of FCC, BCC and HCP metals. Changsha: Central South University Press; 2021. Chinese.
42.
HarttWHReedhillRE.Internal deformation and fracture of second-order [1011]-[1112] twins in magnesium. Trans Metall Soc AIME. 1968;242(6):1127.
43.
HongS-GParkSHLeeCS.Role of {10–12} twinning characteristics in the deformation behavior of a polycrystalline magnesium alloy. Acta Mater. 2010;58(18):5873–5885. DOI:10.1016/j.actamat.2010.07.002
44.
KongFXYaoHZXieWD.Study on structural characteristics of composite smart grille based on principal component analysis. Comput Intell Neurosci. 2022;2022:4712041–4712041. DOI:10.1155/2022/4712041.
45.
HirthJP.Influence of grain boundarier on mechanical properties. Metall Trans. 1972;3(12):3047–3067. DOI:10.1007/BF02661312
46.
RajRAshbyMF.On grain boundary sliding and diffusional creep. Metall Trans. 1971;2(4):1113–1127. DOI:10.1007/BF02664244
47.
AshbyMFVerrallRA.Diffusion-accommodated flow and superplasticity. Acta Metall. 1973;21(2):149–163. DOI:10.1016/0001-6160(73)90057-6
48.
KaramiMMahmudiR.Hot shear deformation constitutive analysis of an extruded Mg–6Li–1Zn alloy. Mater Lett. 2012;81:235–238. DOI:10.1016/j.matlet.2012.05.020
49.
KaramiMMahmudiR.Hot shear deformation constitutive analysis and processing map of extruded Mg-12Li-1Zn bcc alloy. Mater Des. 2014;53:534–539. DOI:10.1016/j.matdes.2013.07.060
50.
SongJSheJChenDLatest research advances on magnesium and magnesium alloys worldwide. J Magnes Alloy. 2020;8(1):1–41. DOI:10.1016/j.jma.2020.02.003
51.
MirzadehH.A comparative study on the hot flow stress of Mg–Al–Zn magnesium alloys using a simple physically-based approach. J Magnes Alloy. 2014;2(3):225–229. DOI:10.1016/j.jma.2014.09.003
52.
FrostHJAMF.Deformation-mechanism maps: the plasticity and creep of metals and ceramics. 1st ed.New York: Pergamon Press; 1982.
53.
MirzadehHCabreraJMNajafizadehA.Constitutive relationships for hot deformation of austenite. Acta Mater. 2011;59(16):6441–6448. DOI:10.1016/j.actamat.2011.07.008
54.
MirzadehH.Simple physically-based constitutive equations for hot deformation of 2024 and 7075 aluminum alloys. Trans Nonferrous Met Soc China. 2015;25(5):1614–1618. DOI:10.1016/S1003-6326(15)63765-7
