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M. Vicen, P. Fabian and E. Tillová

References [1] Panušková, M. (2006). Improve the performance of selected aluminum alloys for castings, Dissertation project, University of Zilina, 62 p. [2] Castella, CH. (2015). Self hardening aluminum alloys for automotive applications, PhD thesis. Politecnico di Torino, 2015. 136 p. [3] Boromei, I. et al. (2010). Influence of the solidification microstructure and porosity on the fatigue strength of Al-Si-Mg casting alloys. Metallurgical Science and Technology. 28(2), 18-24. [4] Tillová, E., Chalupová, M. (2009). Structural analysis

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T. Rzychoń and B. Dybowski

References [1] H. Friedrich, B.L. Mordike, Magnesium Technology, Berlin 2006. [2] A.A. Luo, Int. Mater. Reviews 49, (1), 13-30 (2004). [3] K.N. Braszczyńska-Malik, J. Alloys Compd. 477, 870-876 (2009). [4] B. Dybowski, A. Kiełbus, R. Jarosz, J. Paśko, Solid State Phenom. 211, 65-70 (2013). [5] B. Płonka, J. Kut, P. Korczak, M. Lech-Grega, M. Rajda, Arch. Metall. Mater. 57, (2), 619-626 (2012). [6] F. Mirshahi, M. Meratian, Mater. Des. 33, 557-562 (2012

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K. Nishimura, K. Matsuda, R. Komaki, N. Nunomra, S. Wenner, R. Holmestad, T. Matsuzaki, I. Watanabe and F.L. Pratt

Abstract

Zero-field muon spin relaxation experiments were carried out with Al-1.6%Mg2Si, Al-0.5%Mg, and Al-0.5%Si alloys. Observed relaxation spectra were compared with the calculated relaxation functions based on the Monte Carlo simulation to extract the dipolar width (Δ), trapping (νt), and detrapping rates (νd), with the initially trapped muon fraction (P0). The fitting analysis has elucidated that the muon trapping rates depended on the heat treatment and solute concentrations. The dissolved Mg in Al dominated the νt at lower temperatures below 120 K, therefore the similar temperature variations of νt were observed with the samples mixed with Mg. The νt around 200 K remarkably reflected the heat treatment effect on the samples, and the largest νt value was found with the sample annealed at 100°C among Al-1.6%Mg2Si alloys. The as-quenched Al-0.5%Si sample showed significant νt values between 80 and 280 K relating with Si-vacancy clusters, but such clusters disappeared with the natural aged Al-0.5%Si sample.

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B. Dybowski, J. Szymszal, Ł. Poloczek and A. Kiełbus

). [13] P. Ashtari, H. Tezuka, T. Sato, Scr. Mater. 53, 937-942 (2005). [14] A. Gorny, J. Manickaraj, Z. Cai, S. Shankar, J. Alloys Compd., 577, 103-124 (2013). [15] J.A. Taylor, Procedia Mater. Sci. 1, 19-33 (2012). [16] O. Elsebaie, A.M.A. Mohamed, A.M. Samuel, F.H. Samuel, A.M.A. Al-Ahmari, Mater. Des. 32, 3205-3220 (2011). [17] A.K. Dahle, K. Nogita, S.D. McDonald, C. Dinnis, L. Lu, Mater. Sci. Eng. A 413-414, 243-248 (2005). [18] S. Hegde, K.N. Prabhu, J. Mater. Sci. 43, 3009

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Xuesong Fu, Yan Yang, QuanYang Ma, Xiaodong Peng and Tiancai Xu

References [1] Zhang, X., Deng, K.K. & Li, W.J. (2015). Microstructure and mechanical properties of Mg-Al-Ca alloy influenced by SiCp size. Materials Science & Engineering A. 647, 15-27. [2] Wang, X., Guo, M. & Zhang. J. (2016). Effect of Zn addition on the microstructure, texture evolution and mechanical properties of Al-Mg-Si-Cu alloys. Materials Science & Engineering A. 677, 522-533. [3] Chi, H., Sun, H. & Zhang, Q. (2014). Advanced thermo electrics governed by a single parabolic band: Mg-Si-Sn, a canonical

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K. Li, M. Song, Y. Du and X. Fang

References M. Murayama, K. Hono, M. Saga, M. Kikuchi, Atom probe studies on the early stages of precipitation in Al-Mg-Si alloys, Mater. Sci. Eng. A 250 , 127-132 (1998). M. Murayama, K. Hono, Pre-precipitate clusters and precipitation processes in Al-Mg-Si alloys, Acta Mater. 47 , 1537-1548 (1999). M. Murayama, K. Hono, W. F. Miao, D. E. Laughlin, The effect of Cu additions on the precipitation kinetics in Al-Mg-Si alloy with excess Si, Metall. Mater. Trans. A 32A , 239

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R. Podprocká, D. Bolibruchová and M. Chalupová

. 148-157). [5] Bolibruchová, D. & Žihálová, M. (2014). Vanadium influence on iron based intermetallic phases in AlSi6Cu4. Archives of Metallurgy and Materials, 59 (3), 1029-1032. [6] Shabestari, S.G. (2002). Effect of Mn and Sr on intermetallics in Fe-rich eutectic Al-Si alloy. International Journal of Cast Metals Research. [7] Fortini, et al. (2016). On influence of Mn and Mg additions on tensile properties, microstructure and quality index of the A356 aluminum foundry alloy. 21st European Conference on Fracture

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F. Kahrıman and M. Zeren

, Q. (2016). Hafnium in Aluminum Alloys: A Review. Acta Metall. Sin. (Engl. Lett.) 29(2), 105-119. DOI 10.1007/s40195-016-0379-0. [6] Meng, Y., Zhao, Z. & Cui, J. (2013). Effect of minor Zr and Sc on microstructures and mechanical properties of Al-Mg- Si-Cu-Cr-V alloys. Trans. Nonferrous Met. Soc. China 23, 1882-1889. DOI: 10.1016/S1003-6326(13)62673-4. [7] Lityñska, L., Abou-ras, D., Kostorz, G. & Dutkiewicz, J. (2006). TEM and HREM study of Al3Zr precipitates in an Al-Mg-Si-Zr alloy. Journal of Microscopy. 223, 182

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M. Uludağ, M. Kocabaş, D. Dışpınar, R. Çetin and N. Cansever

References [1] Chomsaeng, N., Haruta, M., Chairuangsri, T., Kurata, H., Isoda, S. & Shiojiri, M. (2010). HRTEM and ADF-STEM of precipitates at peak-ageing in cast A356 aluminum alloy. Journal of Alloys and Compounds. 496(1), 478-487. [2] Tsai, Y.-C., Chou, C.-Y., Lee, S.-L., Lin, C.-K., Lin, J.-C. & Lim, S. (2009). Effect of trace La addition on the microstructures and mechanical properties of A356 (Al-7Si-0.35 Mg) aluminum alloys. Journal of alloys and compounds. 487(1), 157-162. [3] Górny, M., Sikora, G

Open access

K. Mroczka

References [1] C. Yeni, S. Sayer, O. Ertuğrul, M. Pakdil, Effect of post-weld aging on the mechanical and microstructural properties of friction stir welded aluminum alloy 7075, Archives of Materials Science and Engineering 34(2), 105-109 (2008). [2] A. Kula, L. Blaz, M. Sugamata, Microstructure and mechanical properties of rapidly solidified Al-Fe-Ni-Mg alloys, Materials Science Forum 674, 165-170 (2011). [3] A. Kula, L. Blaz, M. Sugamata, Structural and mechanical features of rapidly solidified Al-2Fe-Ni-5Mg