BibTex RIS Kaynak Göster

AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ

Yıl 2011, Cilt: 26 Sayı: 2, 0 - , 20.02.2013

Neşet Akar

Öz

Bu çalışmada, bir dövme alüminyum alaşımı olan AA2024 alaşımında gerinimin neden olduğu sıvı aktivasyonu(strain induced melt activated-SIMA) yöntemi ile yarı-katı şekillendirme için gerekli tiksotropik mikroyapıüretimi araştırılmıştır. Bu amaçla ekstrüze halde AA2024 alaşımı %20 oranında soğuk deformasyona tabitutulmuş ve takiben %30, %40 ve %50 sıvı oranına karşılık gelen yarı-katı sıcaklıklara ısıtılarak oda sıcaklığınasahip suda soğutulmuştur. Mikroyapı analizleri metalografik inceleme ve nicel ölçüm yöntemleri ile yapılmıştır.Deneysel sonuçlar, SIMA yöntemiyle AA2024 alaşımında, yarı katı şekillendirme için gerekli olan küreselşekilli tiksotropik mikroyapıların üretilebileceğini göstermiştir. Artan yarı-katı sıcaklıkla tane boyutu artarkenşekil faktöründe belirgin bir değişim gözlenmemiştir. SIMA yöntemi ile tiksotropik yapı üretimi için yarı-katısıcaklıklarda izotermal bekletmeye gerek olmadığı tespit edilmiştir.

Anahtar Kelimeler

Yarı-katı şekillendirme Yarı-katı sıcaklık AA2024 alaşımı Tiksotropik yapı SIMA.

Kaynakça

  • Spencer, D.B., Mehrabian, R. and Flemings,
  • M.C., “Rheological Behavior of Sn-15 pct Pb in
  • the Crystallization Range”, Metallurgical
  • Transaction A, 3A:1925-1932 1972.
  • Flemings, M.C., Riek R.G. and Young K.P.,
  • “Rheocasting”, Materials Science and
  • Engineering, 25:103-117 1976.
  • Zoqui, E.J., Paes, M., Es-Sadiqi, E., “Macro- and
  • microstructure analysis of SSM A356 produced
  • by electromagnetic stirring” Journal of
  • Materials Processing Technology, 120: 365–
  • 2002.
  • Tzimas, E., “Evolution of microstructure and
  • rheological behavior of alloys in the semi solid
  • state”, Ph.D. Thesis, Drexel University, USA,
  • -12 1997.
  • Kapranos, P., Ward P.J., Atkinson H.V. and
  • Kirkwood D.H., “Near net shaping by semi-solid
  • metal processing” Materials and Design, 21
  • (4): 387-394 2000.
  • Li, D. N., Luo, J. R., Wu, S. S., Xiao, Z. H.,
  • Mao, Y. W., Song, X. J., Wu, G. Z., “Study on
  • the semi-solid rheocasting of magnesium alloy
  • by mechanical stirring”, Journal of Materials
  • Processing Technology, 129 (1-3): 431-434
  • -
  • Hirt, G., and Kopp, R., “Semi-solid Metal
  • Processing” WILEY-VCH Verlag GmbH &
  • Co, Weinheim 2009.
  • Czerwinski F. “Semisolid Processing—Origin of
  • Magnesium Molding”, Magnesium Injection
  • Molding, Springer US, USA, 81-145 2007.
  • Abramov, V. O., Abramov, O. V. Abramov, B.
  • B. Straumal and W. Gust, “Hypereutectic Al-Si
  • based alloys with a thixotropic microstructure
  • produced by ultrasonic treatment”, Materials
  • and Design, 18: 323-326 1997.
  • Taghavi, F., Ghassemi, A., “Study on the effects
  • of the length and angle of inclined plate on the
  • thixotropic microstructure of A356 aluminum
  • alloy”, Materials and Design 30:1762–1767
  • -
  • Liu, D., Atkinson, H.V., Kapranos, P.,
  • Jirattiticharoean W. and Jones, H.,.
  • “Microstructural evolution and tensile
  • mechanical properties of thixoformed high
  • performance aluminium alloys”, Materials
  • Science and Engineering A, 361 (1-2): 213-224
  • -
  • Nafisi, S., Lashkari, O., Ghomashchi, R.,
  • Ajersch, F., Charette, A., “Microstructure and
  • rheological behavior of grain refined and
  • modified semi-solid A356 Al–Si slurries”, Acta
  • Materialia, 54: 3503–3511 2006.
  • Doutre, D, Hay, G., Wales, P. and Gabathuler,
  • J.P. “SEED: A new process por semi solid
  • forming”, Canadian Metallurgical Quarterly,
  • (2): 265-272, 2004.
  • Birol Y., “Internal Cooling to produce
  • aluminium alloy slurries for rheocasting”,
  • Journal of Alloy and Compounds, 480 (2):
  • -368 2009.
  • Birol Y., “Production of Al-7Si-0.3Mg slurry for
  • rheocasting via internal cooling of the melt
  • below liquidus temperature”, Metallic
  • Materials, 47 (9): 401-407 2009.
  • Martinez, R.A. and Flemings, M.C., “Evolution
  • of particle morphology in the semisolid
  • processing”, Metallurgical and Materials
  • Transactions A, 36 (8): 2205-2210 2005.
  • Atkinson, H.V., Liu, D., “Microstructural
  • coarsening of semi-solid aluminium alloys”,
  • Materials Science and Engineering A, 496 (1-
  • :439-446 2008.
  • Young, K.P., Curtis, P.K. and James,.C., “Fine
  • Grained Metal Composition”, United States
  • Patent, Patent No: 4415374, USA 1983.
  • Sirong, Y., Dongcheng, L., Kim, N.,
  • “Microstructure evolution of SIMA processed
  • AA2024”, Materials Science and Engineering
  • A, 420 (1-2):165-170 2006.
  • Choi, J. C., Park, H. J. “Microstructural
  • characteristics of aluminum 2024 by cold
  • working in the SIMA process.” Journal of Materials Processing Technology, 82: 107–116
  • -
  • Kopp, R., Winning G. and Möller T.,
  • “Thixoforging of aluminium alloys” METEC,
  • Düsseldorf 1999.
  • Jung, H.K. Kang C.G. “Reheating process of
  • cast and wrought aluminum alloys for
  • thixoforging and their globularization
  • mechanism”, Journal of Materials Processing
  • Technology, 104: 244-253 2000.
  • Guo, H., Yang, X.,” Preparation of semi-solid
  • slurry containing fine and globular particles for
  • wrought aluminum alloy 2024” Trans.
  • Nonferrous Met. Soc. China 17: 799-804 2007.
  • Akar, N., Mutlu, I., “Effect of Predeformation
  • Rate in SIMA Process on Thixotropic Structure
  • of AA2024 Aluminium Alloy”, Journal of The
  • Faculty of Engineering and Architecture of
  • Gazi University, 25(4): 663-670 2010.
  • Chayong, S., Atkinson, H.V. and Kapranos, P.,
  • “Multistep induction heating regimes for
  • thixoforming 7075 aluminium alloy”, Materials
  • Science and Technology, 20 (4): 490-496 2004.
  • Figueredo, A., “Science and technology of semisolid
  • metal processing” North America Die
  • Casting Associtation, USA, 1-17, 2001.
  • Tzimas, E. and Zavaliangos, A., “Evaluation of
  • volume fraction of solid in alloys formed by
  • semisolid processing”, Journal of Materials
  • Science, 35 (21): 5319-5329 2000.
  • Zoqui E.J. “Morphological analysis of SSM Al–
  • 5 wt.% Cu measured by the rheocast quality
  • index”, Journal of Materials Processing
  • Technology, 143–144: 195–201 2003.
  • Jiang, H., Lu, Y., Huang, W., Li, X., Li, M.,
  • “Microstructural evolution and mechanical
  • properties of the semisolid Al–4Cu–Mg alloy”,
  • Materials Characterization, 51: 1– 10 2003.
  • Jiang, H., Li, M., “Microscopic observation of
  • cold-deformed Al–4Cu–Mg alloy samples after
  • semi-solid heat treatments”, Materials
  • Characterization, 54: 451– 457 2005.
  • Jiang, H. and Li, M., “Grain growth of Al-4Cu-
  • Mg alloy during isothermal heat treatment”,
  • Journal of University of Science and
  • Technology Beijing, 13(1): 67-72 2006.
  • Jiang, H., Mi, Z., Tang, D., and Li, M.,
  • “Microstructure evolution of Al-4Cu-Mg alloy
  • during semi-solid treatment”, Journal of
  • University of Science and Technology Beijing,
  • (2): 151-156 2007.
  • Wang, S., Li, Y., Chen, W., Zheng, X.,
  • “Microstructure evolution of semi-solid 2024
  • alloy during two-step reheating process”,
  • Transactions of Nonferrous Metals Society of
  • China, 18 (4): 784-788 2008.
  • Atkinson, H.V., Kapranos, P., Liu, D., Chayong
  • S.A. and Kirkwood D.H. Thixoforming of
  • normally wrought aluminium alloys”, Materials
  • Science Forum, 396-402 (3): 131-136 2002.
  • Atkinson, H.V., “Modelling the semisolid
  • processing of metallic alloys”, Progress in
  • Materials Science, 50 (3): 341-412 2005.
  • Fan, Z., “Semisolid metal processing”
  • International Materials Reviews, 47(2): 49-85
  • -
  • Zhang, L., Liu, Y.B., Cao, Z.Y., Zhang, Y.F.,
  • Zhang, Q.Q. “Effects of isothermal process
  • parameters on the microstructure of semisolid
  • AZ91D alloy produced by SIMA”, Journal of
  • Materials Processing Technology, 209: 792–
  • 2009.
  • Verhoeven, J.D., “Fundamentals of physical
  • metallurgy”, John Wiley & Sons Inc., Canada,
  • , 200, 347 1975.
  • Porter, D.A., and Easterling K.E. “Phase
  • transformation in metals and alloys” CRC
  • Press, UK, 131 2001.
  • Kim, N.S. and Kang, C.G., “An investigation of
  • flow characteristics considering the effect of
  • viscosity variation in the thixoforming process”,
  • Journal of Materials Processing Technology,
  • : 237-246 2000.
  • Birol, Y., “Thermomechanical processing of
  • AA6061 billets for semi-solid forming”,
  • International Journal of Materials Research,
  • (1): 53-59, (2007).
  • Atkinson, H.V., Burke K. and Vaneetveld G.,
  • “Recrystallization in the semi-solid state in 7075
  • aluminium alloy”, Materials Science and
  • Engineering A, 490 : 266-276 2008.
  • Önsel, M., “The influence of heating conditions
  • on semi-solid forming of aluminum alloys”,
  • Yüksek Lisans Tezi, Boğaziçi Üniversitesi Fen
  • Bilimleri Enstitüsü, İstanbul, 90 2005.

Yıl 2011, Cilt: 26 Sayı: 2, 0 - , 20.02.2013

Neşet Akar

Öz

Kaynakça

  • Spencer, D.B., Mehrabian, R. and Flemings,
  • M.C., “Rheological Behavior of Sn-15 pct Pb in
  • the Crystallization Range”, Metallurgical
  • Transaction A, 3A:1925-1932 1972.
  • Flemings, M.C., Riek R.G. and Young K.P.,
  • “Rheocasting”, Materials Science and
  • Engineering, 25:103-117 1976.
  • Zoqui, E.J., Paes, M., Es-Sadiqi, E., “Macro- and
  • microstructure analysis of SSM A356 produced
  • by electromagnetic stirring” Journal of
  • Materials Processing Technology, 120: 365–
  • 2002.
  • Tzimas, E., “Evolution of microstructure and
  • rheological behavior of alloys in the semi solid
  • state”, Ph.D. Thesis, Drexel University, USA,
  • -12 1997.
  • Kapranos, P., Ward P.J., Atkinson H.V. and
  • Kirkwood D.H., “Near net shaping by semi-solid
  • metal processing” Materials and Design, 21
  • (4): 387-394 2000.
  • Li, D. N., Luo, J. R., Wu, S. S., Xiao, Z. H.,
  • Mao, Y. W., Song, X. J., Wu, G. Z., “Study on
  • the semi-solid rheocasting of magnesium alloy
  • by mechanical stirring”, Journal of Materials
  • Processing Technology, 129 (1-3): 431-434
  • -
  • Hirt, G., and Kopp, R., “Semi-solid Metal
  • Processing” WILEY-VCH Verlag GmbH &
  • Co, Weinheim 2009.
  • Czerwinski F. “Semisolid Processing—Origin of
  • Magnesium Molding”, Magnesium Injection
  • Molding, Springer US, USA, 81-145 2007.
  • Abramov, V. O., Abramov, O. V. Abramov, B.
  • B. Straumal and W. Gust, “Hypereutectic Al-Si
  • based alloys with a thixotropic microstructure
  • produced by ultrasonic treatment”, Materials
  • and Design, 18: 323-326 1997.
  • Taghavi, F., Ghassemi, A., “Study on the effects
  • of the length and angle of inclined plate on the
  • thixotropic microstructure of A356 aluminum
  • alloy”, Materials and Design 30:1762–1767
  • -
  • Liu, D., Atkinson, H.V., Kapranos, P.,
  • Jirattiticharoean W. and Jones, H.,.
  • “Microstructural evolution and tensile
  • mechanical properties of thixoformed high
  • performance aluminium alloys”, Materials
  • Science and Engineering A, 361 (1-2): 213-224
  • -
  • Nafisi, S., Lashkari, O., Ghomashchi, R.,
  • Ajersch, F., Charette, A., “Microstructure and
  • rheological behavior of grain refined and
  • modified semi-solid A356 Al–Si slurries”, Acta
  • Materialia, 54: 3503–3511 2006.
  • Doutre, D, Hay, G., Wales, P. and Gabathuler,
  • J.P. “SEED: A new process por semi solid
  • forming”, Canadian Metallurgical Quarterly,
  • (2): 265-272, 2004.
  • Birol Y., “Internal Cooling to produce
  • aluminium alloy slurries for rheocasting”,
  • Journal of Alloy and Compounds, 480 (2):
  • -368 2009.
  • Birol Y., “Production of Al-7Si-0.3Mg slurry for
  • rheocasting via internal cooling of the melt
  • below liquidus temperature”, Metallic
  • Materials, 47 (9): 401-407 2009.
  • Martinez, R.A. and Flemings, M.C., “Evolution
  • of particle morphology in the semisolid
  • processing”, Metallurgical and Materials
  • Transactions A, 36 (8): 2205-2210 2005.
  • Atkinson, H.V., Liu, D., “Microstructural
  • coarsening of semi-solid aluminium alloys”,
  • Materials Science and Engineering A, 496 (1-
  • :439-446 2008.
  • Young, K.P., Curtis, P.K. and James,.C., “Fine
  • Grained Metal Composition”, United States
  • Patent, Patent No: 4415374, USA 1983.
  • Sirong, Y., Dongcheng, L., Kim, N.,
  • “Microstructure evolution of SIMA processed
  • AA2024”, Materials Science and Engineering
  • A, 420 (1-2):165-170 2006.
  • Choi, J. C., Park, H. J. “Microstructural
  • characteristics of aluminum 2024 by cold
  • working in the SIMA process.” Journal of Materials Processing Technology, 82: 107–116
  • -
  • Kopp, R., Winning G. and Möller T.,
  • “Thixoforging of aluminium alloys” METEC,
  • Düsseldorf 1999.
  • Jung, H.K. Kang C.G. “Reheating process of
  • cast and wrought aluminum alloys for
  • thixoforging and their globularization
  • mechanism”, Journal of Materials Processing
  • Technology, 104: 244-253 2000.
  • Guo, H., Yang, X.,” Preparation of semi-solid
  • slurry containing fine and globular particles for
  • wrought aluminum alloy 2024” Trans.
  • Nonferrous Met. Soc. China 17: 799-804 2007.
  • Akar, N., Mutlu, I., “Effect of Predeformation
  • Rate in SIMA Process on Thixotropic Structure
  • of AA2024 Aluminium Alloy”, Journal of The
  • Faculty of Engineering and Architecture of
  • Gazi University, 25(4): 663-670 2010.
  • Chayong, S., Atkinson, H.V. and Kapranos, P.,
  • “Multistep induction heating regimes for
  • thixoforming 7075 aluminium alloy”, Materials
  • Science and Technology, 20 (4): 490-496 2004.
  • Figueredo, A., “Science and technology of semisolid
  • metal processing” North America Die
  • Casting Associtation, USA, 1-17, 2001.
  • Tzimas, E. and Zavaliangos, A., “Evaluation of
  • volume fraction of solid in alloys formed by
  • semisolid processing”, Journal of Materials
  • Science, 35 (21): 5319-5329 2000.
  • Zoqui E.J. “Morphological analysis of SSM Al–
  • 5 wt.% Cu measured by the rheocast quality
  • index”, Journal of Materials Processing
  • Technology, 143–144: 195–201 2003.
  • Jiang, H., Lu, Y., Huang, W., Li, X., Li, M.,
  • “Microstructural evolution and mechanical
  • properties of the semisolid Al–4Cu–Mg alloy”,
  • Materials Characterization, 51: 1– 10 2003.
  • Jiang, H., Li, M., “Microscopic observation of
  • cold-deformed Al–4Cu–Mg alloy samples after
  • semi-solid heat treatments”, Materials
  • Characterization, 54: 451– 457 2005.
  • Jiang, H. and Li, M., “Grain growth of Al-4Cu-
  • Mg alloy during isothermal heat treatment”,
  • Journal of University of Science and
  • Technology Beijing, 13(1): 67-72 2006.
  • Jiang, H., Mi, Z., Tang, D., and Li, M.,
  • “Microstructure evolution of Al-4Cu-Mg alloy
  • during semi-solid treatment”, Journal of
  • University of Science and Technology Beijing,
  • (2): 151-156 2007.
  • Wang, S., Li, Y., Chen, W., Zheng, X.,
  • “Microstructure evolution of semi-solid 2024
  • alloy during two-step reheating process”,
  • Transactions of Nonferrous Metals Society of
  • China, 18 (4): 784-788 2008.
  • Atkinson, H.V., Kapranos, P., Liu, D., Chayong
  • S.A. and Kirkwood D.H. Thixoforming of
  • normally wrought aluminium alloys”, Materials
  • Science Forum, 396-402 (3): 131-136 2002.
  • Atkinson, H.V., “Modelling the semisolid
  • processing of metallic alloys”, Progress in
  • Materials Science, 50 (3): 341-412 2005.
  • Fan, Z., “Semisolid metal processing”
  • International Materials Reviews, 47(2): 49-85
  • -
  • Zhang, L., Liu, Y.B., Cao, Z.Y., Zhang, Y.F.,
  • Zhang, Q.Q. “Effects of isothermal process
  • parameters on the microstructure of semisolid
  • AZ91D alloy produced by SIMA”, Journal of
  • Materials Processing Technology, 209: 792–
  • 2009.
  • Verhoeven, J.D., “Fundamentals of physical
  • metallurgy”, John Wiley & Sons Inc., Canada,
  • , 200, 347 1975.
  • Porter, D.A., and Easterling K.E. “Phase
  • transformation in metals and alloys” CRC
  • Press, UK, 131 2001.
  • Kim, N.S. and Kang, C.G., “An investigation of
  • flow characteristics considering the effect of
  • viscosity variation in the thixoforming process”,
  • Journal of Materials Processing Technology,
  • : 237-246 2000.
  • Birol, Y., “Thermomechanical processing of
  • AA6061 billets for semi-solid forming”,
  • International Journal of Materials Research,
  • (1): 53-59, (2007).
  • Atkinson, H.V., Burke K. and Vaneetveld G.,
  • “Recrystallization in the semi-solid state in 7075
  • aluminium alloy”, Materials Science and
  • Engineering A, 490 : 266-276 2008.
  • Önsel, M., “The influence of heating conditions
  • on semi-solid forming of aluminum alloys”,
  • Yüksek Lisans Tezi, Boğaziçi Üniversitesi Fen
  • Bilimleri Enstitüsü, İstanbul, 90 2005.
Toplam 178 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Bölüm Makaleler
Yazarlar

Neşet Akar Bu kişi benim

Yayımlanma Tarihi 20 Şubat 2013
Gönderilme Tarihi 20 Şubat 2013
Yayımlandığı Sayı Yıl 2011 Cilt: 26 Sayı: 2

Kaynak Göster

APA Akar, N. (2013). AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, 26(2).
AMA Akar N. AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ. GUMMFD. Mart 2013;26(2).
Chicago Akar, Neşet. “AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ”. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi 26, sy. 2 (Mart 2013).
EndNote Akar N (01 Mart 2013) AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi 26 2
IEEE N. Akar, “AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ”, GUMMFD, c. 26, sy. 2, 2013.
ISNAD Akar, Neşet. “AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ”. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi 26/2 (Mart 2013).
JAMA Akar N. AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ. GUMMFD. 2013;26.
MLA Akar, Neşet. “AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ”. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, c. 26, sy. 2, 2013.
Vancouver Akar N. AA2024 ALAŞIMINDA SIMA YÖNTEMİ İLE TİKSOTROPİK YAPI ÜRETİMİ ÜZERİNE YENİDEN ISITMA SICAKLIĞININ ETKİSİ. GUMMFD. 2013;26(2).