It has been reported that the detrimental effect of Fe on the mechanical properties of Al alloys can be eliminated through the addition of Mn. In this study, we examine the effects of the addition of different Mn contents (0.1, 0.2, 0.4 and 0.7 wt-% of Mn) on the microstructure and mechanical behaviour of Al9Si0.8Fe alloy. It is shown that the presence of up to 0.4 wt-% of Mn changed the platelike morphology of β-Al5FeSi into α-Al15(Fe,Mn)3Si2 with a Chinese script-like morphology. Mn contents higher than 0.4 wt-% promoted the formation of α-Al15(Fe,Mn)3Si2 phase with a polygonal morphology. The effect of the addition of up to 0.7 wt-% of Mn on the mechanical properties of Al9Si0.8Fe alloys is in fact quite negligible.
OsórioWR, CheungN, PeixotoLC, Corrosion resistance and mechanical properties of an Al 9wt%Si alloy treated by laser surface remelting. Int J Electrochem Sci. 2009;4:820–831.
2.
LiZ, SamuelAM, SamuelFH, Parameters controlling the performance of AA319-type alloys: part I. tensile properties. Mater Sci Eng A. 2004;367:96–110. doi: 10.1016/j.msea.2003.09.090
3.
HwangJY, DotyHW, KaufmanMJ.The effects of Mn additions on the microstructure and mechanical properties of Al–Si–Cu casting alloys. Mater Sci Eng A. 2008;488:496–504. doi: 10.1016/j.msea.2007.12.026
4.
KangSB, ZhangJ, WangS, Effect of cooling rate on microstructure and mechanical properties in Al–Si alloys. Proceedings of the 12th International Conference on Aluminium Alloys, 2010 Sep 5–9; Yokohama, Japan. The Japan Institute of Light Metals. p. 675–680.
5.
WangS, ChenS, MatsudaK, et al. Effect of Mn or Fe addition on age-hardening behaviour of AlMg2Si alloys. Mater Trans. 2012;53:1521–1528. doi: 10.2320/matertrans.MAW201219
6.
TaylorJA.Iron-containing intermetallic phases in Al–Si based casting alloys. Procedia Mater Sci. 2012;1:19–33. doi: 10.1016/j.mspro.2012.06.004
TangSK, SritharanT.Morphology of β-AIFeSi intermetallic in AI-7Si alloy castings. Mater Sci Technol. 1998;14:738–748. doi: 10.1179/mst.1998.14.8.738
9.
FabriziA, FerraroS, TimelliG. The influence of Fe, Mn and Cr additions on the formation of iron-rich intermetallic phases in an Al–Si die-casting alloy. In: TiryakiogluM, CampbellJ, ByczynskiG, editors. Shape casting: 5th international symposium 2014. Switzerland: Springer International Publishing; 2014. p. 277–284.
10.
TaghiabadiR, GhasemiHM.Dry sliding wear behaviour of hypoeutectic Al–Si alloys containing excess iron. Mater Sci Technol. 2009;25:1017–1022. doi: 10.1179/174328408X302468
11.
HanQ, ViswanathanS.Analysis of the mechanism of die soldering in aluminum die casting. Metall Mater Trans A. 2003;34:139–146. doi: 10.1007/s11661-003-0215-9
12.
LipińskiT.Tensile strength of the Al-9%Si alloy modified with Na, F and Cl compounds. Arch Foundry Eng.2010;10:89–92.
13.
LiuL, SamuelFH, SamuelAM, Role of iron in relation to silicon modification in Sr-treated 319 and 356 alloys. Int J Cast Metal Res. 2003;16:397–408. doi: 10.1080/13640461.2003.11819616
14.
NarayananLA, SamuelFH, GruzleskiJE.Crystallization behavior of iron-containing intermetallic compounds in 319 aluminum alloy. Metall Mater Trans A. 1994;25:1761–1773. doi: 10.1007/BF02668540
15.
TashM, SamuelFH, MucciardiF, Effect of metallurgical parameters on the hardness and microstructural characterization of as-cast and heat-treated 356 and 319 aluminum alloys. Mater Sci Eng A. 2007;443:185–201. doi: 10.1016/j.msea.2006.08.054
16.
MbuyaaTO, OderaBO, NgangaSP. Influence of iron on castability and properties of aluminium silicon alloys: literature review. Int J Cast Metal Res. 2003;16:451–465. doi: 10.1080/13640461.2003.11819622
17.
NozariM Asadian, TaghiabadiR, KarimzadehM, Investigation on beneficial effects of beryllium on entrained oxide films, mechanical properties and casting reliability of Fe-rich Al–Si cast alloy. Mater Sci Technol. 2015;31:506–512. doi: 10.1179/1743284714Y.0000000656
18.
WangPS, LeeSL, YangCY, Effect of beryllium and non-equilibrium heat treatment on mechanical properties of B319.0 alloy with 1.0%Fe. Mater Sci Technol. 2004;20:539–545. doi: 10.1179/026708304225012107
19.
LuL, DahleAK. Iron-rich intermetallic phases and their role in casting defect formation in hypoeutectic Al−Si alloys. Metall Mater Trans A. 2005;36:819–835.
20.
MalavaziJ.Formação dos compostos intermetálicos na liga Al–Si7 fundida à gravidade. Fundição e Matérias-Primas. 2012;1:78–91.
21.
ShabestariSG.The effect of iron and manganese on the formation of intermetallic compounds in aluminum–silicon alloys. Mater Sci Eng A. 2004;383:289–298. doi: 10.1016/S0921-5093(04)00832-9.
22.
Belmares-PeralesS, Castro-RománM, Herrera-TrejoM, Effect of cooling rate and Fe/Mn weight ratio on volume fractions of α-AlFeSi and β-AlFeSi phases in Al–7.3Si–3.5Cu alloy. Met Mater Int. 2008;14:307–314. doi: 10.3365/met.mat.2008.06.307
23.
JiS, YangW, GaoF, Effect of iron on the microstructure and mechanical property of Al–Mg–Si–Mn and Al–Mg–Si die cast alloys. Mater Sci Eng A. 2013;564:130–139. doi: 10.1016/j.msea.2012.11.095
24.
SeifeddineS, JohanssonS, SvenssonIL.The influence of cooling rate and manganese content on the β-Al5FeSi phase formation and mechanical properties of Al–Si-based alloys. Mater Sci Eng A. 2008;490:385–390. doi: 10.1016/j.msea.2008.01.056
25.
KhalifaW, SamuelAM, SamuelFH, Metallographic observations of β-AlFeSi phase and its role in porosity formation in Al-7%Si alloys. Int J Cast Metal Res. 2006;19:156–166. doi: 10.1179/136404606225023372
26.
AshtariP, TezukaH, SatoT.Influence of Sr and Mn additions on intermetallic compound morphologies in Al–Si–Cu–Fe cast alloys. Mater Trans. 2003;44:2611–2616. doi: 10.2320/matertrans.44.2611
27.
Ervina EfzanaMN, KongHJ, KokCK.Review: effect of alloying element on Al–Si alloys. Adv Mater Res. 2013;845:355–359. doi: 10.4028/www.scientific.net/AMR.845.355
28.
MalavaziJ, BaldanR, CoutoAA.Microstructure and mechanical behaviour of Al9Si alloy with different Fe contents. Mater Sci Technol. 2015;31:737–744. doi: 10.1179/1743284714Y.0000000659
29.
BackerudL, ChaiG, TamminenJ. Solidification characteristics of aluminum alloys. Vol. 2. Oslo, Norway: Foundry Alloys, AFS/ScanAluminium; 1990. p. 81–82.
30.
RoyN, SamuelAM, SamuelFH.Porosity formation in Al-9 wt pct Si-3 wt pct Cu alloy systems: metallography observations. Metall Mater Trans A. 1996;27:415–429. doi: 10.1007/BF02648419
31.
JarstadJL. Understanding Sludge. Proceedings of the 14th SDCE International Die Casting Congress and Exposition; 1987 May 11–14; Toronto, Ontario, Paper No. G-T87-011.
32.
DinnisCM, TaylorJA, DahleAK.As-cast morphology of iron-intermetallics in Al–Si foundry alloys. Scripta Mater.2005;53:955–958. doi: 10.1016/j.scriptamat.2005.06.028
33.
EmamyM, AbediK.The effect of Fe, Mn and Sr on the microstructure and tensile properties of A356–10%SiC composite. Mater Sci Eng A. 2010;527:3733–3740. doi: 10.1016/j.msea.2010.01.063
34.
LiuX, LiC, WuY, Morphologies and growth mechanisms of α-Al(FeMn)Si in Al–Si–Fe–Mn alloy. Mater Lett. 2013;110:191–194. doi: 10.1016/j.matlet.2013.08.039
