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Alüminyum Alaşımlarında Yaşlandırma İşleminin Mekanik Özellikler ve İşlenebilirlik Üzerindeki Etkisi

Yıl 2014, Cilt: 1 Sayı: 1, 1 - 9, 01.07.2016

Öz

Bu çalışmada, AA6013 ve AA6082 alüminyum alaşımlarında yaşlandırma işleminin alaşımın mekanik özellikleri ve işlenebilirlik özellikleri üzerine etkileri incelenmiştir. Bu amaçla, deneyde kullanılan alüminyum alaşımı numuneler 530oC’de ısıl işlem fırınında (8 saat) bekletildikten sonra sıcak suya atılmış (70oC’de) daha sonra ısıl işlem fırınında (180oC’de) farklı sürelerde (1,3,6,9,12 ve 24 saat) bekletilerek yaşlandırma işlemine tabi tutulmuştur. Yaşlandırma işlemi uygulanan numunelerin mekanik özelliklerindeki değişimler ile işlenebilirlik özellikleri incelenmiştir. Yaşlandırma işlemi sonunda her iki alaşımının mekanik özelliklerinde artış gözlenmiştir. Yaşlandırma süresinin artmasına bağlı olarak alaşımların işlenmesi sırasında oluşan kesme kuvvetlerinde artış görülmüştür. Alüminyum alaşımlarında 6 saat yaşlandırma işlemi sonunda yüksek mekanik özellikler elde edilmiştir. Alaşımlarda, 6 saat yaşlandırma süresi sonunda elde edilen mekanik özellikler ve işlenebilirlik özelleri ile 24 saat sonunda ulaşılan değerler arasında önemli artış gözlenmemiştir.

Kaynakça

  • [1] Florea, R.S., Solanki, K.N., Bammann, D.J. Baird, J.C. ,M.P., “ Castanier: Resistance spot welding of 6061-T6 aluminum: Failure loads and deformation”, Materials and Design,vol. 34, pp. 624–630, 2012.
  • [2] Chen,Y.C., Bakavos, D., Gholinia, A., Prangnell, P.B., “ HAZ development and accelerated post-weld natural ageing in ultrasonic spot welding aluminium 6111-T4 automotive sheet”, Acta Materialia , vol. 60, pp. 2816– 2828,2012.
  • [3] D. Bakavos, P.B., Prangnell, “ Mechanisms of joint and microstructure formation in high power ultrasonic spot welding 6111 aluminium automotive sheet”, Materials Science and Engineering A, vol. 527, pp. 6320–6334,2010.
  • [4] Rafiq A. Siddiqu, Hussein A. Abdullah, Khamis R. Al-Belushi, “Influence of aging parameters on the mechanical properties of 6063 aluminium alloy, Journal of Materials Processing Technology, vol.102, 234-240,2000.
  • [5] Hayat ,F. “ Effect of aging treatment on the microstructure and mechanical properties of the similar and dissimilar 6061-T6/7075-T651 RSW joints”, Materials Science & Engineering A, vol.556, pp. 834–843,2012.
  • [6] Ozturk , F., Sisman , A., Toros, S., Kilic ,S., Picu ,R.C., “Influence of aging treatment on mechanical properties of 6061 aluminum alloy”, Materials and Design , vol.31, pp. 972–975,2010.
  • [7] Mrowka-Nowotnik ,G., Sieniawski, J.,“Influence of heat treatment on the microstructure and mechanical properties of 6005 and 6082 aluminium alloys”, Journal of Materials Processing Technology ,162–163,pp. 367–372, 2005.
  • [8] Meyveci, A., Karacan, I., Çalıgülü,U., Durmuş ,H,., “Pin-on-disc characterization of 2xxx and 6xxx aluminium alloys aged by precipitation age hardening”, Journal of Alloys and Compounds, vol.491, pp.278–283,2010.
  • [9] Barbosa, C. , Dille, J., Delplancke, J. L. , Rebello, J.M.A. , Acselrad ,O., “A microstructural study of flash welded and aged 6061 and 6013 aluminum alloys”, Materials Characterization , vol. 57, pp.187–192,2006.
  • [10] Braun, R., “Investigations on the long-term stability of 6013-T6 sheet”, Materials Characterization , vol. 56 ,pp. 85–95, 2006.
  • [11] Petroyiannis, P.V. , Kermanidis, Al.Th. , Papanikos, P. , Pantelakis ,Sp.G., “Corrosion-induced hydrogen embrittlement of 2024 and 6013 aluminum alloys”, Theoretical and Applied Fracture Mechanics , vol. 41 ,pp.173–183,2004.
  • [12] Tesch, A. , Pippan, R., Trautmann, K.H. , Döker , H., “Short cracks initiated in Al 6013-T6 with the focused ion beam (FIB)-technology”, International Journal of Fatigue , vol. 29,pp. 1803–1811,2007.
  • [13] Zander,J., Sandström, R., “One parameter model for strength properties of hardenable aluminium alloys”, Materials and Design , vol. 29, pp.1540–1548,2008.
  • [14] Khalid Rafi, H., Janaki Ram , G.D., Phanikumar, G., Prasad Rao, K., “Microstructure and tensile properties of friction welded aluminum alloy AA7075-T6”, Materials and Design , vol.31, pp. 2375–238,2010.
  • [15] Demir, H., Gündüz, S.,“The effects of aging on machinability of 6061 aluminium alloy”, Materials and Design, vol.30 , pp. 1480–1483,2009.
  • [16] Stephenson, D. A., Agapiou, J.S., Metal Cutting Theory and Practice ,2.nd Ed., Taylor&Francis, 2006.
  • [17] Boothroyd, G., Knight, W. A., Fundamentals of Machining and Machine Tools, 3rd.Ed., Taylor&Francis, 2006.
  • [18] Kalpakjian, S., Schmid, S. R., Manufacturing Engineering and Technology, Prentice Hall,2010.
  • [19] Grover, M. P. ,Principles of Modern Manufacturing, 4 th Ed., John Wiley & Sons, Inc., 2010.
  • [20] Black, J.T., Kohser, R. A., Materials & Processes in Manufacturing ,10th Ed., John Wiley&Sons, Inc.,2008.
  • [21] Grzesik, W., Advanced Machining Processes of Metallic Materials, Elsevier, UK., 2008.
  • [22] Mindivan, H., Baydoğan, M., Kayalı, E.S., Çinmenoglu, H., “Wear behaviour of 7039 Aluminum alloy”, Material Characterization, vol. 54 ,pp. 263-269,2005.

Effect of Aging on Mechanical Properties and Machining on Aluminum Alloys

Yıl 2014, Cilt: 1 Sayı: 1, 1 - 9, 01.07.2016

Öz

This study investigated the effects of aging process on the mechanical properties and machinability in AA6013and AA6082 aluminum alloys. To this end, AA6013 and AA6082 aluminum alloy samples were maintained in heat treatment furnace at 530 oC (for 8 hours) and placed in hot water (at 70 oC), and then subjected to aging process by storing in heat treatment furnace (at 180oC) for different times (1, 3, 6, 9, 12 and 24 hours). Changes in the mechanical properties and machinability properties of samples that underwent aging process were investigated. At the end of the aging process, an increase was observed in mechanical properties of aluminum alloys. Depending on the increase in aging time, a rise was found in cutting forces occurred during the machining of alloy. High mechanical properties were obtained at the end of the 6-hour aging process in aluminum alloys. A significant increase was observed between mechanical properties obtained at the end of 6- hour aging time and machinability properties with values obtained at the end of 24 hours.

Kaynakça

  • [1] Florea, R.S., Solanki, K.N., Bammann, D.J. Baird, J.C. ,M.P., “ Castanier: Resistance spot welding of 6061-T6 aluminum: Failure loads and deformation”, Materials and Design,vol. 34, pp. 624–630, 2012.
  • [2] Chen,Y.C., Bakavos, D., Gholinia, A., Prangnell, P.B., “ HAZ development and accelerated post-weld natural ageing in ultrasonic spot welding aluminium 6111-T4 automotive sheet”, Acta Materialia , vol. 60, pp. 2816– 2828,2012.
  • [3] D. Bakavos, P.B., Prangnell, “ Mechanisms of joint and microstructure formation in high power ultrasonic spot welding 6111 aluminium automotive sheet”, Materials Science and Engineering A, vol. 527, pp. 6320–6334,2010.
  • [4] Rafiq A. Siddiqu, Hussein A. Abdullah, Khamis R. Al-Belushi, “Influence of aging parameters on the mechanical properties of 6063 aluminium alloy, Journal of Materials Processing Technology, vol.102, 234-240,2000.
  • [5] Hayat ,F. “ Effect of aging treatment on the microstructure and mechanical properties of the similar and dissimilar 6061-T6/7075-T651 RSW joints”, Materials Science & Engineering A, vol.556, pp. 834–843,2012.
  • [6] Ozturk , F., Sisman , A., Toros, S., Kilic ,S., Picu ,R.C., “Influence of aging treatment on mechanical properties of 6061 aluminum alloy”, Materials and Design , vol.31, pp. 972–975,2010.
  • [7] Mrowka-Nowotnik ,G., Sieniawski, J.,“Influence of heat treatment on the microstructure and mechanical properties of 6005 and 6082 aluminium alloys”, Journal of Materials Processing Technology ,162–163,pp. 367–372, 2005.
  • [8] Meyveci, A., Karacan, I., Çalıgülü,U., Durmuş ,H,., “Pin-on-disc characterization of 2xxx and 6xxx aluminium alloys aged by precipitation age hardening”, Journal of Alloys and Compounds, vol.491, pp.278–283,2010.
  • [9] Barbosa, C. , Dille, J., Delplancke, J. L. , Rebello, J.M.A. , Acselrad ,O., “A microstructural study of flash welded and aged 6061 and 6013 aluminum alloys”, Materials Characterization , vol. 57, pp.187–192,2006.
  • [10] Braun, R., “Investigations on the long-term stability of 6013-T6 sheet”, Materials Characterization , vol. 56 ,pp. 85–95, 2006.
  • [11] Petroyiannis, P.V. , Kermanidis, Al.Th. , Papanikos, P. , Pantelakis ,Sp.G., “Corrosion-induced hydrogen embrittlement of 2024 and 6013 aluminum alloys”, Theoretical and Applied Fracture Mechanics , vol. 41 ,pp.173–183,2004.
  • [12] Tesch, A. , Pippan, R., Trautmann, K.H. , Döker , H., “Short cracks initiated in Al 6013-T6 with the focused ion beam (FIB)-technology”, International Journal of Fatigue , vol. 29,pp. 1803–1811,2007.
  • [13] Zander,J., Sandström, R., “One parameter model for strength properties of hardenable aluminium alloys”, Materials and Design , vol. 29, pp.1540–1548,2008.
  • [14] Khalid Rafi, H., Janaki Ram , G.D., Phanikumar, G., Prasad Rao, K., “Microstructure and tensile properties of friction welded aluminum alloy AA7075-T6”, Materials and Design , vol.31, pp. 2375–238,2010.
  • [15] Demir, H., Gündüz, S.,“The effects of aging on machinability of 6061 aluminium alloy”, Materials and Design, vol.30 , pp. 1480–1483,2009.
  • [16] Stephenson, D. A., Agapiou, J.S., Metal Cutting Theory and Practice ,2.nd Ed., Taylor&Francis, 2006.
  • [17] Boothroyd, G., Knight, W. A., Fundamentals of Machining and Machine Tools, 3rd.Ed., Taylor&Francis, 2006.
  • [18] Kalpakjian, S., Schmid, S. R., Manufacturing Engineering and Technology, Prentice Hall,2010.
  • [19] Grover, M. P. ,Principles of Modern Manufacturing, 4 th Ed., John Wiley & Sons, Inc., 2010.
  • [20] Black, J.T., Kohser, R. A., Materials & Processes in Manufacturing ,10th Ed., John Wiley&Sons, Inc.,2008.
  • [21] Grzesik, W., Advanced Machining Processes of Metallic Materials, Elsevier, UK., 2008.
  • [22] Mindivan, H., Baydoğan, M., Kayalı, E.S., Çinmenoglu, H., “Wear behaviour of 7039 Aluminum alloy”, Material Characterization, vol. 54 ,pp. 263-269,2005.
Toplam 22 adet kaynakça vardır.

Ayrıntılar

Diğer ID JA49BC78BB
Bölüm Makaleler
Yazarlar

Birol Akyüz

Safa Şenaysoy Bu kişi benim

Yayımlanma Tarihi 1 Temmuz 2016
Gönderilme Tarihi 1 Temmuz 2016
Yayımlandığı Sayı Yıl 2014 Cilt: 1 Sayı: 1

Kaynak Göster

APA Akyüz, B., & Şenaysoy, S. (2016). Alüminyum Alaşımlarında Yaşlandırma İşleminin Mekanik Özellikler ve İşlenebilirlik Üzerindeki Etkisi. Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi, 1(1), 1-9.