The effect of 0–2 wt-% Sn addition on AZ80 magnesium alloys after 350°C extrusion has been studied by analysing microstructure and mechanical properties. The results indicated that dynamically recrystallised grains were fine and homogeneous with less than 1 wt-% Sn addition. In AZ80–0.5Sn alloy, a large number of Mg17Al12 precipitated phases formed in grains and at grain boundaries during extrusion process. With more than 1 wt-% Sn addition, the size of dynamically recrystallised grains increased and the number of Mg17Al12 phases decreased. The strength of as-extruded AZ80–0.5Sn alloy enhanced largely as compared with that of the as-extruded AZ80 alloy. AZ80–0.5Sn alloy had the outstanding tensile and compressive properties.
FriedrichH. and SchumannS.: ‘Research for a “new age of magnesium” in the automotive industry’, J. Mater. Process. Tech., 2001, 117, (3), 276–281. doi: 10.1016/S0924-0136(01)00780-4
4.
LuoA. A.: ‘Magnesium casting technology for structural applications’, J. Magnes. Alloy., 2013, 1, (1), 2–22. doi: 10.1016/j.jma.2013.02.002
LetzigD., SwiostekJ., BohlenJ., BeavenP. A. and KainerK. U.: ‘Wrought magnesium alloys for structural applications’, Mater. Sci. Tech.-Lond., 2008, 24, (8), 991–996. doi: 10.1179/174328407X213080
7.
HonoK., MendisC. L., SasakiT. T. and Oh-ishiK.: ‘Towards the development of heat-treatable high-strength wrought Mg alloys’, Scripta Mater., 2010, 63, (7), 710–715. doi: 10.1016/j.scriptamat.2010.01.038
8.
PanF. S., YangM. B., ZhangD. F., WangL. Y. and DingP. D.: ‘Research and development of wrought magnesium alloys in China’, Mater. Sci. Forum., 2005, 488–489, 413–418. doi: 10.4028/www.scientific.net/MSF.488-489.413
9.
GuoF., ZhangD., YangX., JiangL. and PanF.: ‘Strain-induced dynamic precipitation of Mg17Al12 phases in Mg–8Al alloys sheets rolled at 748K’, Mat. Sci. Eng. A-Struct., 2015, 636, 516–521. doi: 10.1016/j.msea.2015.03.112
10.
ZhangP. and LindemannJ.: ‘Effect of roller burnishing on the high cycle fatigue performance of the high-strength wrought magnesium alloy AZ80’, Scripta Mater., 2005, 52, (10), 1011–1015. doi: 10.1016/j.scriptamat.2005.01.026
11.
ChangS. H., WuS. K., TsaiW. L. and WangJ. Y.: ‘Cold-rolling effect on damping capacity of high-temperature damping background for AZ80 magnesium alloy’, J. Alloy. Compd., 2009, 487, (1–2), 142–145. doi: 10.1016/j.jallcom.2009.08.006
12.
TsujiN., ItoY., SaitoY. and MinaminoY.: ‘Strength and ductility of ultrafine grained aluminum and iron produced by ARB and annealing’, Scripta Mater., 2002, 47, (12), 893–899. doi: 10.1016/S1359-6462(02)00282-8
13.
EsgandariB. A., MehrjooH., NamiB. and MiresmaeiliS. M.: ‘The effect of Ca and RE elements on the precipitation kinetics of Mg17Al12 phase during artificial aging of magnesium alloy AZ91’, Mat. Sci. Eng. A-Struct., 2011, 528, (15), 5018–5024. doi: 10.1016/j.msea.2011.03.022
14.
LeeS., ParkB., ParkY. and ParkI.: ‘Effect of Sn on the microstructure and mechanical properties of Mg–5Al–2Si alloys’, J. Mater. Sci. Technol., 2008, 24, (3), 296–298.
15.
SevikH., AçıkgözS. and Can KurnazS.: ‘The effect of tin addition on the microstructure and mechanical properties of squeeze cast AM60 alloy’, J. Alloy. Compd., 2010, 508, (1), 110–114. doi: 10.1016/j.jallcom.2010.07.185
16.
MahmudiR. and MoeendarbariS.: ‘Effects of Sn additions on the microstructure and impression creep behavior of AZ91 magnesium alloy’, Mat. Sci. Eng. A-Struct., 2013, 566, 30–39. doi:10.1016/j.msea.2012.12.076.
17.
LiR. G., XuY., QiW., AnJ., LuY., CaoZ. Y. and LiuY. B.: ‘Effect of Sn on the microstructure and compressive deformation behavior of the AZ91D aging alloy’, Mater. Charact., 2008, 59, (11), 1643–1649. doi: 10.1016/j.matchar.2008.03.005
18.
JungI. C., KimY. K., ChoT. H., OhS. H., KimT. E., ShonS. W., KimW. T. and KimD. H.: ‘Suppression of discontinuous precipitation in AZ91 by addition of Sn’, Met. Mater. Int., 2014, 20, (1), 99–103. doi: 10.1007/s12540-013-6008-9
19.
LiuY., ZhaoD., NieX., TaoH., WangJ. and GuiJ.: ‘In situ transmission electron microscopy observations of precipitation and a new orientation relationship between γ-Mg17Al12 and magnesium-based matrix in an Mg–Al–Zn–Sn alloy’, Phil. Mag. Lett., 2012, 92, (12), 668–674. doi: 10.1080/09500839.2012.715247
20.
ParkS. H., JungJ., YoonJ. and YouB. S.: ‘Influence of Sn addition on the microstructure and mechanical properties of extruded Mg–8Al–2Zn alloy’, Mat. Sci. Eng. A-Struct., 2015, 626, 128–135. doi: 10.1016/j.msea.2014.12.039
21.
LuoA. A., FuP., PengL., KangX., LiZ. and ZhuT.: ‘Solidification microstructure and mechanical properties of cast magnesium–aluminum–tin alloys’, Metall. Mater. Trans. A, 2012, 43, 360–368. doi: 10.1007/s11661-011-0820-y
22.
NieJ. F.: ‘Precipitation and hardening in magnesium alloys’, Metall. Mater. Trans. A, 2012, 43, 3891–3939. doi: 10.1007/s11661-012-1217-2
23.
TavighiK., EmamyM. and EmamiA. R.: ‘Effects of extrusion temperature on the microstructure and tensile properties of Al–16wt% Al4Sr metal matrix composite’, Mater. Design, 2013, 46, 598–604. doi: 10.1016/j.matdes.2012.11.033
24.
JiangL., ZhangD., DongY., GuoF., HuG., XueH. and PanF.: ‘Microstructure and tensile properties of as extruded and as aged Mg–Al–Zn–Mn–Sn alloy’, Mater. Sci. Tech.-Lond., 2015, 31, (9), 1088–1095. doi: 10.1179/1743284714Y.0000000676
HeJ. J., LiuT. M., ChenH. B., LongZ. X., LuL. W. and PanF. S.: ‘Roles of detwinning in strain hardening and ultimate elongation in extruded Mg–3Al–1Zn alloy’, Mater. Sci. Tech.-Lond., 2014, 30, (11), 1343–1348. doi: 10.1179/1743284713Y.0000000454
27.
XuS. W., KamadoS., MatsumotoN., HonmaT. and KojimaY.: ‘Recrystallization mechanism of as-cast AZ91 magnesium alloy during hot compressive deformation’, Mat. Sci. Eng. A-Struct., 2009, 527, (1–2), 52–60. doi: 10.1016/j.msea.2009.08.062
28.
PingY., WangL., XieQ., LiJ., DingH. and LuL.: ‘Influence of deformation on precipitation in AZ80 magnesium alloy’, Int. J. Min. Met. Mater., 2011, 18, (3), 338–343. doi: 10.1007/s12613-011-0444-7
