Mekanik Alaşımlama ile Üretilen Nanokristal Fe60Al30Cu10 (at.%) Tozların Yapısal ve Mekanik Özellikleri

Yıl 2019, Cilt: 7 Sayı: 1, 184 - 191, 24.03.2019

Barış Avar , Tuncay Şimşek , Musa Göğebakan

https://doi.org/10.29109/gujsc.470909

Cited By: 2

Öz

Bu çalışmada, nanoyapılı
Fe (Al,Cu) katı çözeltisi, elementel tozların mekanik alaşımlama (MA) işlemi ile
sentezlenmiştir. Toz karışımlar, 50 saatlik öğütme süresince çeşitli zaman
aralıklarında gezegensel bilyeli değirmende öğütülmüştür. Numunelerin yapısal
ve mekanik özellikleri X-ışını
difraksiyonu (XRD), taramalı elektron mikroskobu/ enerji dağılımlı X-ışını
spektroskopisi (SEM/ EDX) ve Vickers mikrosertlik (HV) testi ile incelenmiştir.
10 saatlik öğütme işleminden sonra bütün Al ve Cu atomları ymk-Fe (Al,Cu) katı
çözeltisini oluşturmak üzere Fe kafesi içerinde çözünmüştür. Toz alaşımların
parçacık morfolojisi öğütme süreleri boyunca soğuk kaynaklanma, kırılma ve
kararlı durum aşamalarını göstermiştir. 50 saatlik öğütme işleminden sonra
parçacık boyutu ve kristalit boyutu, sırasıyla ~ 500 nm ve ~ 6 nm’ ye düşmüştür.
Bununla birlikte, mikrosertlik değerleri artan öğütme süresiyle birlikte artmıştır.

Anahtar Kelimeler

Mekanik alaşımlama, Fe-Al-Cu alaşımı, XRD, SEM, Vickers sertlik

Kaynakça

• Inoue, A., Kimura, H. Bulk amorphous, nanocrystalline and nanoquasicrystalline aluminium alloys. Aerospace Materials (Editörler: Brian Cantor , Patrick Grant , and Hazel Assender). Institute of Physics Publishing, London, UK. s.150-169. (2001).
• C. Suryanarayana, A. Inoue, Bulk Metallic Glasses. CRC Press - Taylor & Francis Group, USA. (2011) 1-542.
• C.C. Koch, Structural nanocrystalline materials: an overview. Journal of Materials Science, 42 (2007) 1403-1414.
• R.W. Siegel, G.E. Fougere, Mechanical properties of nanocrystalline materials. Nanostructured Materials, 6 (1995) 205–216.
• M.A Willard, M. Daniil, Nanocrystalline soft magnetic alloys two decades of progress. Handbook of Magnetic Materials, 21 (2013) 173-342.
• C. Suryanarayana, Mechanical alloying and milling, Progress in Materials Science. 46 (2001) 1–184.
• S. Enzo, R. Frattini, R. Gupta, X-ray powder diffraction and Mossbauer study of nanocrystalline Fe-Al prepared by mechanical alloying. Acta Materialia, 44 (1996) 3105-3113.
• E.P. Yelsukov, G.A. Dorofeev, Mechanical alloying in binary Fe-M (M=C, B, Al, Si,Ge, Sn) systems. Journal of Materials Science, 39 (2004) 5071-5079.
• Q. Zeng, I. Baker, Magnetic properties and thermal ordering of mechanically alloyed Fe-40 at.% Al. Intermetallics, 14 (2006) 396-405.
• B. Avar, M. Gogebakan, S. Ozcan, S. Kerli, Structural, Mechanical and magnetic properties of fe – 40-at.% al powders during mechanical alloying. Journal of the Korean Physical Society, 65:5 (2014), 664-670.
• J. Eckert, J.C. Holzer, W.L. Johnson, Thermal stability and grain growth behavior of mechanically alloyed nanocrystalline Fe-Cu alloys. Journal of Applied Physics, 73: (1993) 131.
• M. Krifa, M. Mhadhbi, L. Escoda, J. Saurina, J.J. Suñol, N. Llorca-Isern, C. Artieda-Guzmán, M. Khitouni, Phase transformations during mechanical alloying of Fe–30% Al–20% Cu. Powder Technology, 246 (2013) 117-124.
• M. Krifa, M. Mhadhbi, L. Escoda, J.M. Guell, J.J. Suñol, N. Llorca-Isern, C. Artieda-Guzmán, M. Khitouni, Nanocrystalline (Fe60Al40) 80Cu20 alloy prepared by mechanical alloying. Journal of Alloys and Compounds, 554 (2013): 51-58.
• R.A. Rastabi, A. Ghasemi, M. Tavoosi, T. Sodaee, Magnetic characterization of nanocrystalline Fe80−xCrxCo20 (15≤x≤35) alloys during milling and subsequent annealing, Journal of Magnetism and Magnetic Materials, 416 (2016) 174.
• R. A Rastabi, A. Ghasemi, M. Tavoosi, M. Ramazani, Magnetic features of Fe-Cr-Co alloys with tailoring chromium content fabricated by spark plasma sintering, Journal of Magnetism and Magnetic Material, 426 (2017) 744.
• A.H. Bahrami , H. Ghayour S. Sharafi, Evolution of microstructural and magnetic properties of mechanicallyalloyed Fe80−xNi20Six nanostructured powders, Powder Technology, 249 (2013) 7–14.
• M. S. El-Eskandarany, Mechanical Alloying: Nanotechnology, Materials Science and Powder Metallurgy, second ed. Elsevier, Oxford, 2015.
• M. Mhadhbi, M. Khitouni, L. Escoda, J.J. Suñol, M. Dammak, Characterization of mechanically alloyed nanocrystalline Fe(Al): crystallite size and dislocation density, Journal of Nanomaterials, 2010 (2010) Article ID 712407.
• J.S. Benjamin, T.E. Volin, The mechanism of mechanical alloying. Metallurgical Transactions, 5:8 (1974) 1929-1934.
• M. Rafiei, M. H. Enayati, F. Karimzadeh, The effect of Ti addition on alloying and formation of nanocrystalline structure in Fe–Al system. Journal of Material Science, 45:15 (2010) 4058-4062.
• S. Arunkumar, P. Kumaravel, C. Velmurugan, V. Senthilkumar, Microstructures and mechanical properties of nanocrystalline NiTi intermetallics formed by mechanosynthesis. International Journal of Minerals, Metallurgy and Materials, 25:1 (2018): 80-87.