TY - JOUR T1 - AA6063 ALÜMİNYUM ALAŞIMININ H2SO4 ORTAMINDAKİ KOROZYON DAVRANIŞINA YAŞLANDIRMA SÜRESİNİN ETKİSİ TT - EFFECT OF AGING TIME ON THE CORROSION PROPERTIES OF AA6063 ALUMINIUM ALLOY IN H2SO4 ENVIRONMENT AU - Kısasöz, Alptekin PY - 2018 DA - July Y2 - 2018 DO - 10.28948/ngumuh.445447 JF - Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi JO - NÖHÜ Müh. Bilim. Derg. PB - Niğde Ömer Halisdemir Üniversitesi WT - DergiPark SN - 2564-6605 SP - 979 EP - 985 VL - 7 IS - 2 LA - tr AB - AA6063alaşımı hafiflik, mekanik dayanım ve korozyon direnci gibi özellikleri birarada bulundurması nedeniyle yaygın bir kullanıma sahiptir. Özellikle bualaşımlara uygulanan çökelme sertleşmesi işlemiyle, mekanik özelliklerde önemliartışlar meydana gelmektedir. Ancak çökelme sertleşmesi işlemi alaşımınkorozyon direncini düşürmektedir. Bu çalışmada, AA6063 alaşımı 200˚C’de 2, 4 ve8 saat yaşlandırılmış ve yaşlandırılan numunelerin farklı oranlarda H2SO4içeren (%2, %4, %6) ortamlardaki korozyon davranışları araştırılmıştır. Numunelerinkorozyon davranışı, ağırlık kayıplarının incelenmesiyle belirlenmiştir. Ayrıcasertlik ölçümleriyle, yaşlandırma işleminin mekanik özellikler üzerindekietkisi incelenmiştir. Korozyon testleri sonucunda yaşlandırma süresi arttıkçakorozyon oranının arttığı, özellikle 8 saat yaşlandırılan numunenin %6 H2SO4içeren çözeltide yüksek oranda korozyona uğradığı belirlenmiştir. KW - AA6063 alüminyum alaşımı KW - ısıl işlem KW - korozyon N2 - AA6063 aluminium alloy has been widely used due toits combined properties as lightness, mechanical strength, and corrosionresistance. Especially, precipitation hardening process enhances the mechanicalproperties of the aluminium alloys. Also, precipitation hardening processreduces the corrosion resistance of the aluminium alloys. In this study, agingtreatments are applied to AA6063 aluminium alloy at 200˚C for 2, 4 and 8 hoursand corrosion behaviour of aged samples is investigated in H2SO4 solutions with variousH2SO4 ratio (2%, 4%, 6%). Corrosion behavior of the specimens is determined by measuring theweight loss. Moreover, the effect of aging treatment on mechanical propertiesis investigated with hardness measurements. As a result of the corrosion tests,it is determined that the corrosion rate increases as the aging time increase,especially the sample aged for 8 hours has the greater corrosion loss in thesolution containing 6% H2SO4. CR - [1] AYTAÇ, A., DAŞÇILAR, B., USTA, M., “The Effect of Extrusion Speed on the Structure and Corrosion Properties of Aged and Non-aged 6063 Aluminum Alloy”, Materials Chemistry and Physics, 130, 1357-1360, 2011. CR - [2] VARGEL, C., Corrosion of Aluminium, Elsevier, Oxford, UK, 2004. CR - [3] TOTIK, Y., SADELER, R., KAYMAZ, I., GAVGALI, M., “The Effect of Homogenisation Treatment on Cold Deformations of AA 2014 and AA 6063 Alloys”, Journal of Materials Processing Technology, 147, 60-64, 2004. CR - [4] TURBALIOĞLU, K., SUN, Y., “The Improvement of the Mechanical Properties of AA 6063 Aluminum Alloys Produced by Changing the Continuous Casting Parameters”, Scientific Research and Essays, 6, 2832-2840, 2011. CR - [5] SUN, Y., BAYDOĞAN, M., ÇİMENOĞLU, H., “The effect of Deformation Before Ageing on the Wear Resistance of an Aluminium Alloy”, Materials Letters, 38, 221-226, 1999. CR - [6] ARUN, P.N., GNANAMOORTHY, R., KAMARAJ, M., “Microstructural Evolution and Mechanical Properties of Oil Jet Peened Aluminium Alloy AA6063-T6”, Materials Design, 31, 4066-4075, 2010. CR - [7] POLMEAR, I.J., “Aluminium Alloys-A Century of Age Hardening”, Materials Forum, 28, 1-17, 2004. CR - [8] WU, Y., LIAO, H., “Corrosion Behavior of Extruded near Eutectic AleSieMg and 6063 Alloys”, Journal of Materials Science and Technology, 29, 380-386, 2013. CR - [9] GAVGALI, M., TOTIK, Y., SADELER, R., “The Effects of Artificial Aging on Wear Properties of AA 6063 Alloy”, Materials Letters, 57, 3713-3721, 2003. CR - [10] LI, H.Y., ZENG, C.T., HAN, M.S., LIU, J.J., LU, X.C., “Time−Temperature−Property Curves for Quench Sensitivity of 6063 Aluminum Alloy”, Transactions of Nonferrous Metals Society of China, 23, 38-45, 2013. CR - [11] HIRTH, S.M., MARSHALL, G.J., COURT, A.A., LYLOYD, D.J., “Effects of Si on the Aging Behaviour and Formability of Aluminium Alloys Based on AA 6016”, Materials Science and Engineering A, 319-321, 452-456, 2001. CR - [12] ZHAN, Z., MA, X., SUN, Y., XİA, L., LİU, Q., “The Mechanical Properties of Aluminum Alloy by Plasma-Based Ion Implantation and Solution Aging Treatment”, Surface and Coatings Technology, 129, 256-259, 2000. CR - [13] ESMAEILI, S., LLOYD, D.J., “Modeling of Precipitation Hardening in Pre-aged AlMgSi(Cu) Alloys”, Acta Materialia, 53, 5257-5271, 2005. CR - [14] PRABHU, D., RAO, P., “Corrosion Behaviour of 6063 Aluminium Alloy in Acidic and in Alkaline Media”, Arabian Journal of Chemistry, Basımda, 10.1016/j.arabjc.2013.07.059. CR - [15] OBI-EGBEDI, N.O., OBOT, I.B., UMOREN, S.A., “Spondias Mombin L. as a Green Corrosion Inhibitor for Aluminium in Sulphuric Acid: Correlation Between Inhibitive Effect and Electronic Properties of Extracts Major Constituents Using Density Functional Theory”, Arabian Journal of Chemistry, 5, 361-373, 2012. CR - [16] MOON, S.M., PYUN, S.I., “The Formation and Dissolution of Anodic Oxide Films on Pure Aluminium in Alkaline Solution”, Electrochimica Acta, 44, 2445-2454, 1999. UR - https://doi.org/10.28948/ngumuh.445447 L1 - https://dergipark.org.tr/tr/download/article-file/509234 ER -