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The Effect of Bifilm and Sr Modification on the Mechanical Properties of AlSi12Fe Alloy

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Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The microstructure of Al-Si alloy has coarse silicon and this structure is known dangerous for mechanical properties due to its crack effect. Sr addition is preferred to modify the coarse silica during solidification. Additionally, bifilms (oxide structure) are known as a more dangerous defect which is frequently seen in light alloys. It is aimed at that negative effect of bifilms on the properties of the alloys tried to be removed by the degassing process and to regulate the microstructure of the alloy. In this study, the effect of degassing and Sr modification on the mechanical properties of AlSi12Fe alloy was investigated, extensively. Four different parameters (as-received, as-received + degassing, Sr addition, Sr addition + degassing) were studied under the same conditions environmentally. The microstructural analyses and mechanical tests were done on cast parts. All data obtained from the experimental study were analyzed statistically by using statistical analysis software. It was concluded from the results that Sr addition is very dangerous for AlSi12Fe alloy. It can be suggested that to reach high mechanical properties and low casting defects, the degassing process must be applied to all castings whereas Sr addition should not be preferred.
Rocznik
Strony
99--104
Opis fizyczny
Bibliogr. 24 poz., rys., tab., wykr.
Twórcy
autor
  • Bursa Technical University, Faculty of Engineering and Natural Science, Metallurgical and Materials Eng. Dept., Bursa-Turkey
autor
  • Bursa Technical University, Faculty of Engineering and Natural Science, Metallurgical and Materials Eng. Dept., Bursa-Turkey
autor
  • Istanbul Technical University, Faculty of Chemical and Metallurgy, Metallurgical and Materials Eng. Dept., Istanbul-Turkey
Bibliografia
  • [1] Campbell, J. (2015). Complete casting handbook: metal casting processes, metallurgy, techniques and design. Butterworth-Heinemann.
  • [2] Kaufman, J.G. & Rooy, E.L. (2004). Aluminum alloy castings: properties, processes, and applications. Asm International.
  • [3] Tunçay, T., Tekeli, S., Özyürek, D. & Dişpinar, D. (2017). Microstructure–bifilm interaction and its relation with mechanical properties in A356. International Journal of Cast Metals Research. 30(1), 20-29. DOI: 10.1080/ 13640461.2016.1192826.
  • [4] Mostafaei, M., Ghobadi, M., Eisaabadi, G., Uludağ, M. & Tiryakioğlu, M. (2016). Evaluation of the effects of rotary degassing process variables on the quality of A357 aluminum alloy castings. Metallurgical and Materials Transactions B. 47(6), 3469-3475. DOI: 10.1007/s11663-016-0786-7.
  • [5] Moustafa, M.A., Samuel, F.H. & Doty, H.W. (2003). Effect of solution heat treatment and additives on the microstructure of Al-Si (A413. 1) automotive alloys. Journal of Materials Science. 38(22), 4507-4522. DOI: 10.1023/A: 1027333602276.
  • [6] Mondolfo, L.F. (1965). Nucleation in eutectic alloys. Journal of the Australian Institute of Metals. 10(2), 169.
  • [7] Sigworth, G.K. & Alcoa, P.M. (2008). Modification of aluminum-silicon alloys. International Journal of Metalcasting. 49, 90-104.
  • [8] Campbell, J. & Tiryakioğlu, M. (2010). Review of effect of P and Sr on modification and porosity development in Al–Si alloys. Materials Science and Technology. 26(3), 262-268. DOI: 10.1179/174328409X425227.
  • [9] Closset, B. & Gruzleski, J.E. (1982). Structure and properties of hypoeutectic Al-Si-Mg alloys modified with pure strontium. Metallurgical Transactions A. 13(6), 945-951. DOI: 10.1007/BF02643389.
  • [10] Shabestari, S.G. & Shahri, F. (2004). Influence of modification, solidification conditions and heat treatment on the microstructure and mechanical properties of A356 aluminum alloy. Journal of Materials Science. 39(6), 2023-2032. DOI: 10.1023/B:JMSC.0000017764.20609.0d.
  • [11] Campbell, J. (2006). An overview of the effects of bifilms on the structure and properties of cast alloys. Metallurgical and Materials Transactions B. 37(6), 857-863. DOI: 10.1007/BF02735006.
  • [12] Dispinar, D. & Campbell, J. (2006). Use of bifilm index as an assessment of liquid metal quality. International Journal of Cast Metals Research. 19(1), 5-17. DOI: 10.1179/136404606225023300.
  • [13] Nallusamy, S. (2016). A review on the effects of casting quality, microstructure and mechanical properties of cast Al-Si-0.3 Mg alloy. International Journal of Performability Engineering. 12(2), 143-154.
  • [14] Gopalan, R. & Prabhu, N.K. (2011). Oxide review bifilms in aluminium alloy castings–a. Materials Science and Technology. 27(12), 1757-1769.
  • [15] Campbell, J. (2004). Castings practice: the ten rules of castings. Elsevier.
  • [16] Dispinar, D., Akhtar, S., Nordmark, A., Di Sabatino, M. & Arnberg, L. (2010). Degassing, hydrogen and porosity phenomena in A356. Materials Science and Engineering: A. 527(16-17), 3719-3725.
  • [17] El-Sayed, M.A. & Griffiths, W.D. (2014). Hydrogen, bifilms and mechanical properties of Al castings. International Journal of Cast Metals Research. 27(5), 282-287. DOI: 10.1179/1743133614Y.0000000113.
  • [18] Tiryakioğlu, M. & Campbell, J. (2014). Quality index for aluminum alloy castings. International Journal of Metalcasting. 8(3), 39-42.
  • [19] Elsebaie, O., Samuel, A.M. & Samuel, F.H. (2011). Effects of Sr-modification, iron-based intermetallics and aging treatment on the impact toughness of 356 Al–Si–Mg alloy. Journal of Materials Science. 46(9), 3027-3045. DOI: 10.1007/s10853-010-5181-1.
  • [20] Dispinar, D. & Campbell, J. (2011). Porosity, hydrogen and bifilm content in Al alloy castings. Materials Science and Engineering: A. 528(10-11), 3860-3865. DOI: 10.1016/j.msea.2011.01.084.
  • [21] Davami, P., Kim, S.K. & Tiryakioğlu, M. (2013). The effect of melt quality and filtering on the Weibull distributions of tensile properties in Al–7% Si–Mg alloy castings. Materials Science and Engineering: A. 579, 64-70. DOI: 10.1016/j.msea.2013.05.014.
  • [22] Ludwig, T., Di Sabatino, M., Arnberg, L. & Dispinar, D. (2012). Influence of oxide additions on the porosity development and mechanical properties of A356 aluminium alloy castings. International Journal of Metalcasting. 6(2), 41-50. DOI: 10.1007/BF03355526.
  • [23] Denton, J.R. & Spittle, J.A. (1985). Solidification and susceptibility to hydrogen absorption of Al–Si alloys containing strontium. Materials Science and Technology. 1(4), 305-311. DOI: 10.1179/mst.1985.1.4.305.
  • [24] Lee, P.D. & Sridhar, S. (2000). Direct observation of the effect of strontium on porosity formation during the solidification of aluminium-silicon alloys. International Journal of Cast Metals Research. 13(4), 185-198. DOI: 10.1080/13640461.2000.11819401.
Uwagi
PL
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c498b64f-09c4-4624-b27e-8faac4cf1646
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