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RRA İşleminde Yeniden Yaşlandırma Sıcaklığının AA7075 Alaşımlarının Darbe Dayanımına Etkisi

Year 2018, Volume: 5 Issue: 3, 882 - 887, 30.09.2018
https://doi.org/10.31202/ecjse.439251

Abstract

Bu çalışmda, bir çok endüstriyel uygulamada, yaygın olarak kullanılan
AA7075 alaşımına T6 ısıl işlemi uygulanmıştır. T6 ısıl işlemi uygulandıktan
sonra, 220 °C sıcaklıkta 1 saat yeniden solüsyona alınan  numuneler tuzlu suda hızlı soğutulmuştur. Beş
farklı (100-140 °C) sıcaklıkta 24 saat süre yeniden yaşlandırılmış ve RRA
işlemi tamamlanmıştır. Yaşlandırılan alaşımların sertlik ölçümleri, mikro yapı (SEM)
incelemeleri yapılmıştır. Yeniden yaşlandırma sıcaklığına bağlı olarak yapıda
çökeltilerin oluştuğu belirlenmiştir. Darbe testi uygulanan alaşımların, en
yüksek darbe direnci 100 °C sıcaklıkta yeniden yaşlandırılan alaşımlarda elde
edilmiştir. Yeniden yaşlandırma sıcaklığının artması, alaşımın sertliğini
arttırırken darbe direncinde düşüşe neden olmuştur. Maksimum sertliğin elde
edildiği 120 °C sıcaklıkta en düşük darbe direnci elde edilmiştir. 

References

  • Borns, R., Whitacre, D., “Optimizing designs of aluminum suspension components using an integrated approach”, (No. 2005-01-1387). 2005, SAE Technical Paper.
  • Kim, H.J., McMillan, C., Keoleian, G. A., Skerlos, S.J., “Greenhouse Gas Emissions Payback For Lightweighted Vehicles Using Aluminum And High Strength Steel”, Journal of Industrial Ecology, 2010, 14(6): 929-946.
  • Miller, W.S., Zhuang, L., Bottema, J., Wittebrood, A., De Smet, P., Haszler, A., Vieregge, A., “Recent Development ın Aluminium Alloys for the Automotive Industry”, Materials Science and Engineering: A, 2000, 280(1): 37-49.
  • Franke, R., Dragulin, D., Zovi, A., Casarotto, F., “Progress in ductile aluminium high pressure die casting alloys for the automotive industry”, La Metallurgia Italiana, 2007, (5): 21-25
  • Mahathaninwong, N., Plookphol, T., Wannasin, J., Wisutmethangoon, S., “T6 heat treatment of rheocasting 7075 Al alloy. Materials Science and Engineering: A, 2012, 532; 91-99.
  • Li, J.F., Peng, Z.W., Li, C.X., Jia, Z.Q., Chen, W.J., Zheng, Z.Q., “Mechanical properties, corrosion behaviors and microstructures of 7075 aluminium alloy with various aging treatments”, Transactions of Nonferrous Metals Society of China, 2008, 18(4): 755-762.
  • De, P.S., Mishra, R.S., Smith, C.B., “Effect of microstructure on fatigue life and fracture morphology in an aluminum alloy”, Scripta Materialia, 2009, 60(7): 500-503.
  • Al-Rubaie, K.S., Barroso, E.K., Godefroid, L.B. “Statistical modeling of fatigue crack growth rate in pre-strained 7475-T7351 aluminum alloy”, Materials Science and Engineering: A, 2008, 486(1): 585-595.
  • Winkler, S.L., Flower, H.M., “Stress corrosion cracking of cast 7XXX aluminium fibre reinforced composites”, Corrosion science, 2004, 46(4): 903-915.
  • Huang, L.P., Chen, K.H., Li, S., Song, M., “Influence of high-temperature pre-precipitation on local corrosion behaviors of Al–Zn–Mg alloy”, Scripta Materialia, 2007, 56(4): 305-308.
  • Fakioglu, A., Özyürek, D., Yilmaz, R., “Effects of different heat treatment conditions on fatigue behavior of AA7075 alloy”, High Temperature Materials and Processes, 2013, 32(4): 345-351.
  • Talianker, M., Cina, B., “Retrogression and reaging and the role of dislocations in the stress corrosion of 7000-type aluminum alloys”, Metallurgical and Materials Transactions A, 1989, 20(10): 2087-2092.
  • Papazian, J.M., “Differential scanning calorimetry evaluation of retrogressed and Re-aged microstructures in aluminum alloy 7075”, Materials Science and Engineering, 1986, 79(1), 97-104.
  • Özyürek, D., Yilmaz, R., Kibar, E. “RRA İşleminde Yeniden Çözeltiye Alma Parametrelerin 7075 Alüminyum Alaşımlarının Çekme Dayanımına Etkisi”, Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi, 2012, 27(1): 193-203.
  • Fakioglu, A., Özyürek, D., “Effects of Re-Aging on the Fatigue Properties of Aluminum Alloy AA7075”, Materials Testing, 2014, 56(7-8): 575-582.
  • Chemingui, M., Khitouni, M., Jozwiak, K., Mesmacque, G., Kolsi, A., “Characterization of the mechanical properties changes in an Al–Zn–Mg alloy after a two-step ageing treatment at 70 and 135 C”, Materials & Design, 2010, 31(6): 3134-3139.
  • Mondal, C., Mukhopadhyay, A.K., “On the nature of T (Al 2 Mg 3 Zn 3) and S (Al 2 CuMg) phases present in as-cast and annealed 7055 aluminum alloy”, Materials Science and Engineering: A, 2005, 391(1): 367-376.
  • Reda, Y., Abdel-Karim, R., Elmahallawi, I., “Improvements in mechanical and stress corrosion cracking properties in Al-alloy 7075 via retrogression and reaging”, Materials Science and Engineering: A, 2008, 485(1): 468-475.
  • Li, Z., Xiong, B., Zhang, Y., Zhu, B., Wang, F., Liu, H., “Investigation on strength, toughness and microstructure of an Al–Zn–Mg–Cu alloy pre-stretched thick plates in various ageing tempers”, Journal of Materials Processing Technology, 2009, 209(4): 2021-2027.
  • Viana, F., Pinto, A.M.P., Santos, H.M.C., Lopes, A.B., “Retrogression and re-ageing of 7075 aluminium alloy: microstructural characterization”, Journal of Materials Processing Technology, 1999, 92: 54-59.
  • Chun, F., Liu, Z.Y., Ning, A.L., Liu, Y.B., Zeng, S.M., “Retrogression and re-aging treatment of Al-9.99% Zn-1.72% Cu-2.5% Mg-0.13% Zr aluminum alloy”, Transactions of Nonferrous Metals Society of China, 2006, 16(5): 1163-1170.
Year 2018, Volume: 5 Issue: 3, 882 - 887, 30.09.2018
https://doi.org/10.31202/ecjse.439251

Abstract

References

  • Borns, R., Whitacre, D., “Optimizing designs of aluminum suspension components using an integrated approach”, (No. 2005-01-1387). 2005, SAE Technical Paper.
  • Kim, H.J., McMillan, C., Keoleian, G. A., Skerlos, S.J., “Greenhouse Gas Emissions Payback For Lightweighted Vehicles Using Aluminum And High Strength Steel”, Journal of Industrial Ecology, 2010, 14(6): 929-946.
  • Miller, W.S., Zhuang, L., Bottema, J., Wittebrood, A., De Smet, P., Haszler, A., Vieregge, A., “Recent Development ın Aluminium Alloys for the Automotive Industry”, Materials Science and Engineering: A, 2000, 280(1): 37-49.
  • Franke, R., Dragulin, D., Zovi, A., Casarotto, F., “Progress in ductile aluminium high pressure die casting alloys for the automotive industry”, La Metallurgia Italiana, 2007, (5): 21-25
  • Mahathaninwong, N., Plookphol, T., Wannasin, J., Wisutmethangoon, S., “T6 heat treatment of rheocasting 7075 Al alloy. Materials Science and Engineering: A, 2012, 532; 91-99.
  • Li, J.F., Peng, Z.W., Li, C.X., Jia, Z.Q., Chen, W.J., Zheng, Z.Q., “Mechanical properties, corrosion behaviors and microstructures of 7075 aluminium alloy with various aging treatments”, Transactions of Nonferrous Metals Society of China, 2008, 18(4): 755-762.
  • De, P.S., Mishra, R.S., Smith, C.B., “Effect of microstructure on fatigue life and fracture morphology in an aluminum alloy”, Scripta Materialia, 2009, 60(7): 500-503.
  • Al-Rubaie, K.S., Barroso, E.K., Godefroid, L.B. “Statistical modeling of fatigue crack growth rate in pre-strained 7475-T7351 aluminum alloy”, Materials Science and Engineering: A, 2008, 486(1): 585-595.
  • Winkler, S.L., Flower, H.M., “Stress corrosion cracking of cast 7XXX aluminium fibre reinforced composites”, Corrosion science, 2004, 46(4): 903-915.
  • Huang, L.P., Chen, K.H., Li, S., Song, M., “Influence of high-temperature pre-precipitation on local corrosion behaviors of Al–Zn–Mg alloy”, Scripta Materialia, 2007, 56(4): 305-308.
  • Fakioglu, A., Özyürek, D., Yilmaz, R., “Effects of different heat treatment conditions on fatigue behavior of AA7075 alloy”, High Temperature Materials and Processes, 2013, 32(4): 345-351.
  • Talianker, M., Cina, B., “Retrogression and reaging and the role of dislocations in the stress corrosion of 7000-type aluminum alloys”, Metallurgical and Materials Transactions A, 1989, 20(10): 2087-2092.
  • Papazian, J.M., “Differential scanning calorimetry evaluation of retrogressed and Re-aged microstructures in aluminum alloy 7075”, Materials Science and Engineering, 1986, 79(1), 97-104.
  • Özyürek, D., Yilmaz, R., Kibar, E. “RRA İşleminde Yeniden Çözeltiye Alma Parametrelerin 7075 Alüminyum Alaşımlarının Çekme Dayanımına Etkisi”, Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi, 2012, 27(1): 193-203.
  • Fakioglu, A., Özyürek, D., “Effects of Re-Aging on the Fatigue Properties of Aluminum Alloy AA7075”, Materials Testing, 2014, 56(7-8): 575-582.
  • Chemingui, M., Khitouni, M., Jozwiak, K., Mesmacque, G., Kolsi, A., “Characterization of the mechanical properties changes in an Al–Zn–Mg alloy after a two-step ageing treatment at 70 and 135 C”, Materials & Design, 2010, 31(6): 3134-3139.
  • Mondal, C., Mukhopadhyay, A.K., “On the nature of T (Al 2 Mg 3 Zn 3) and S (Al 2 CuMg) phases present in as-cast and annealed 7055 aluminum alloy”, Materials Science and Engineering: A, 2005, 391(1): 367-376.
  • Reda, Y., Abdel-Karim, R., Elmahallawi, I., “Improvements in mechanical and stress corrosion cracking properties in Al-alloy 7075 via retrogression and reaging”, Materials Science and Engineering: A, 2008, 485(1): 468-475.
  • Li, Z., Xiong, B., Zhang, Y., Zhu, B., Wang, F., Liu, H., “Investigation on strength, toughness and microstructure of an Al–Zn–Mg–Cu alloy pre-stretched thick plates in various ageing tempers”, Journal of Materials Processing Technology, 2009, 209(4): 2021-2027.
  • Viana, F., Pinto, A.M.P., Santos, H.M.C., Lopes, A.B., “Retrogression and re-ageing of 7075 aluminium alloy: microstructural characterization”, Journal of Materials Processing Technology, 1999, 92: 54-59.
  • Chun, F., Liu, Z.Y., Ning, A.L., Liu, Y.B., Zeng, S.M., “Retrogression and re-aging treatment of Al-9.99% Zn-1.72% Cu-2.5% Mg-0.13% Zr aluminum alloy”, Transactions of Nonferrous Metals Society of China, 2006, 16(5): 1163-1170.
There are 21 citations in total.

Details

Primary Language Turkish
Subjects Engineering
Journal Section Makaleler
Authors

Doğan Şimşek 0000-0002-8326-9982

İjlal Şimşek 0000-0001-6542-8567

Publication Date September 30, 2018
Submission Date June 30, 2018
Acceptance Date August 28, 2018
Published in Issue Year 2018 Volume: 5 Issue: 3

Cite

IEEE D. Şimşek and İ. Şimşek, “RRA İşleminde Yeniden Yaşlandırma Sıcaklığının AA7075 Alaşımlarının Darbe Dayanımına Etkisi”, El-Cezeri Journal of Science and Engineering, vol. 5, no. 3, pp. 882–887, 2018, doi: 10.31202/ecjse.439251.
Creative Commons License El-Cezeri is licensed to the public under a Creative Commons Attribution 4.0 license.
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