PENGARUH HEAT TREATMENT TERHADAP STRUKTUR MIKRO DAN KEKERASAN ALUMINIUM PADUAN AL-Si-Cu PADA CYLINDER HEAD SEPEDA MOTOR

  • Suherman Suherman Program Studi Teknik Mesin, Politeknik Tanjungbalai
  • Susri Mizhar Jurusan Teknik Mesin Institut Teknologi Medan
  • Agung Winoto Jurusan Teknik Mesin Institut Teknologi Medan

Abstract

Tujuan penelitan ini adalah untuk mengetahui pengaruh Solution Treatment dan aging pada Aluminium paduan Al-Si-Cu hasil coran cylinder head sepeda motor 2 Tak yang dicor dengan metode lost foam casting (LFC). Penelitian ini mempelajari pengaruh Solution Treatment dan aging (T6) terhadap eutectic silicon dan kekerasan Aluminium paduan Al-Si-Cu sebelum dan sesudah Solution Treatment (T6). Proses perlakuan panas solution treatment diterapkan dengan pada temperatur 520 C dengan waktu tahan selama 2 jam dan selanjutnya dilakukan proses Age Hardening dengan temperatur 200 oC dengan holding time masing-masing 2,3 dan 4 jam. Hasil penelitian ini menunjukkan peningkatan waktu tahan (holding time) pada proses heat treatment meningkatkan nilai kekerasan serta merubah stuktur particle eutectic silicon.

##submission.citations##

. Davis, J.R., 1993. ASM Specialty Handbook : Aluminum and Aluminum Alloys,

. Eidhed, W and Viboonpun, N, 2015, Effect of Solution Treatment Time on Microstructure and Hardness of Al-Si-Cu-Ni Alloy, Thesis Undergraduate student, Materials Engineering, Department of Production Technology, King Mongkut Institute of Technology North Bangkok.

. Hosain, A., and Kurny, S.W., 2013 Effect of Ageing Temperature on the Mechanical Properties of Al-6Si-0,5Mg Cast Alloys with Cu Additions Treated by T6 Heat Treatment, Universal Journal Materials Science, pp 1-5.

. Hua, P.J., Long, T.X., Ting, H.J., and Ying, X.D., 2011, Effect of Heat Treatment on microstructure on tensile Properties of A356 alloys, Transaction non Ferrous Metal, Science Direct, Vol 21, pp 1950-1956.

. Hurtalova, L., Belan, J., Tillova, E., and Chalupova, M., 2012. Changes in Structural Characteristics of Hypoeutectic Al-Si Cast Alloy After Age Hardening, Material Science, vol 18, pp 228-233.

. Hwang, J.Y., Banerjee, R., Doty, H.W., Kaufman, M.J., 2009., The Effect of Mg on The Structure and Properties of Type 319 Aluminium Casting Alloys, Acta Mater. 57 1308-1317.

. Kasprzak, W., Kurita, H., Gabriel, B and Amirkhiz, B.S., 2016 Hardness control of Al-Si HPDC Casting Alloy Via Microstructure Refinement and Tempering Paramaters, Jurnal Material and Disgn, p.p 365-376

. Kim, K., and Lee, K. 2005. Effect of Process Parameters on Porosity in Aluminum Lost Foam Process, Journal Material Scipta Technology. Vol. 21 No.5, pp. 681-685.

. Kumar, S., Kumar, P., Shan, H.S., 2007, Effect of evaporative pattern casting process parameters on the surface roughness of Al–7% Si alloy castings, Journal of Materials Processing Technology, Vol. 182, pp. 615–623.

. Muhammed, A.M.A., and Samuel, F.H, 2012, A Review on the Heat Treatment of Al-Si-Cu/Mg Casting Alloys, INTECH, pp 55-72

. Pola, M., Roberti, R., Rivolta, B., Silva, G., and Gerosa, R., 2011, Experimental investigation of ageing in Al-Si-Cu-Mg-Ag cast alloys, La Metallurgia Italiana, vol 9, pp 4-51.

. Smith, W.F., 1993, Structure and Properties of Engineering Alloys”, McGraw-Hill inc, Second Edition.

. Wahab, M.A., Madugu, I.A., Asuke, F., Fayomi, O.S.I., and Ayane, F.A., 2013, Effect of thermal ageing treatment on the mechanical properties of antimony-modified A356.0-type Al-Si-Mg alloy, JMES, Vol 4, pp 87-92.

. Wei, C.Z., Ying, M.C., and Pei, C., 2012, Eutectic Modification of A356 alloy with Li additonal Throught DSC and Miedema Model, Transactions of Non Ferrous Metals, Science Direct, Vol 22, pp 42-46.

. Yang, Shouxun Ji., Yang, W., Wang, Y., Fan, Z, 2015., Effect of Mg Level on The Microstructure and Mechanical Properties of Dies Cast Al-Si-Cu Alloys, Material Science and Engineering, 340-350.

. Zeren, M., and Karakulak, E., 2009. Studi on hardness and microstructure characteristic of sand cast Al-Si-Cu alloys, bull mater science, Indian Academic of Sciences. Vol 32, Pp 617-620.

. Zhao, Q., Gustafson, T.W., Hoover, M., Flemings, M.C., 2003, Fold Formation in the lost foam aluminium process, in S.K. Das (ed), TMS Warrendale, pp. 121-132

Published
2016-05-11
Section
Artikel