The Effect of Water Mist Cooling of Casting Die on the Solidification, Microstructure and Properties of AlSi20 Alloy

• Autorzy: Władysiak R. , Kozuń A. , Pacyniak T.

Identyfikatory

DOI

10.1515/amm-2017-0026

• Języki publikacji: EN

Abstrakty

EN

Unmodified AlSi20 alloy were casted at the research station, allowing for sequential multipoint cooling using a dedicated computer- controlled program. This method allows for the formation of the microstructure of hypereutectic AlSi20 alloy and also increases hardness. Primary silicon dendrites were found in the microstructure of cooled samples. Based on these dendrites, the formation of primary silicon particles is explained. Cooling of casting die with a water mist stream causes changes in solidification, which leads to expansion of the boundary layer with columnar crystals and shrinkage of the core zone with equiaxed crystals. It also causes more regular hardness distribution around pre-eutectic Si crystals, which can lead to tensile strength and machinability improvement.

Słowa kluczowe

EN

silicon dendrites; casting die cooling; water mist; hypereutectic Al-Si alloy

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 1
• Strony: 187--194
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Władysiak R.

• Lodz University of Technology, Department of Materials Engineering and Production Systems, 1/15 Stefanowskiego Str., 90-924 Lodz, Poland

autor

Kozuń A.

• Lodz University of Technology, Department of Materials Engineering and Production Systems, 1/15 Stefanowskiego Str., 90-924 Lodz, Poland

autor

Pacyniak T.

• Lodz University of Technology, Department of Materials Engineering and Production Systems, 1/15 Stefanowskiego Str., 90-924 Lodz, Poland

Bibliografia

• [1] R. Władysiak, A. Kozuń, Effect of Water Mist Cooling on Microstructure of Hypereutectic Al-Si Alloy, Arch. Foundry Eng. 14, 3, 117-122 (2014).
• [2] R. Władysiak, Computer Control the Cooling Process in Permanent Mold Casting of Al-Si Alloy, Arch. Metall. Mater. 58, 3, 10-13 (2013).
• [3] H. Yamagata, W. Kasprzak, M. Aniolek, H. Kurita, J.H. Sokolowski, The effect of average cooling rates on the microstructure of the Al-20% Si high pressure die casting alloy used for monolithic cylinder blocks, J. Mater. Process. Technol. 203, 3, 333-341 (2008).
• [4] S.G. Shabestari, M. Malekan, Thermal analysis study of the effect of the cooling rate on the microstructure and solidification parameters of 319 aluminum alloy,Can. Metall. Q. 44, 3, 305-312 (2005).
• [5] Z.G. Shen, C. Lü, Experimental tests of investment casting air jet cooling process, Zhuzao/Foundry 63, 6, 567-570, (2014).
• [6] R. Władysiak, Effect of water mist on cooling process of casting die and microstructure of alsi11 alloy, Arch. Metall. Mater. 55, 3, 93-9946 (2010).
• [7] J. Cho, C. Kim, Al-Si casting alloys in high pressure die casting 8, 1, 49-56, (2014).
• [8] S.M.H. Hejazi, F. Majidi, G.H. Akbari, A Cu-Cr alloy with nano and microscale Cr particles produced in a water-cooled copper mold, Int. J. Miner. Metall. Mater. 17, 5, 629-634 ( 2010).
• [9] G. Wang, G. Zhao, X. Wang, Development and evaluation of a new rapid mold heating and cooling method for rapid heat cycle molding, Int. J. Heat Mass Transf. 78, 99-111 (2014),
• [10] M. Nowak, O. Golovko, F. Nürnberger, I. Frolov, M. Schaper, Water-Air Spray Cooling of Extruded Profiles: Process Integrated Heat Treatment of the Alloy EN AW-6082, J. Mater. Eng. Perform. 22, 9, 2580-2587 (2013).
• [11] J. Kang, X. Hao, G. Nie, H. Long, B. Liu, Intensive riser cooling of castings after solidification, J. Mater. Process. Technol. 215, 278-286 (2015).
• [12] C. Rapiejko, B. Pisarek, T. Pacyniak, Effect Of Cr and V Alloy Additions on the Microstructure and Mechanical Properties of Am60 Magnesium Alloy, Arch. Metall. Mater. 59, 2, 10-14 (2014).
• [13] L. Heusler and W. Schneider, Influence of alloying elements on the thermal analysis results of Al-Si cast alloys, J. Light Met. 2, 1, 17-26, Feb. (2002).
• [14] R.M. Pillai, K.S. Biju Kumar, B.C. Pai, A simple inexpensive technique for enhancing density and mechanical properties of Al-Si alloys, J. Mater. Process. Technol. 146, 3, 338-348 (2004).
• [15] R. Xu, L. Li, L. Zhang, B. Zhu, X. Liu, X. Bu, Influence of pressure and surface roughness on the heat transfer efficiency during water spray quenching of 6082 aluminum alloy, J. Mater. Process. Technol. 214, 12, 2877-2883 (2014).
• [16] G. Duggan, M. Tong, D.J. Browne, Modelling the creation and destruction of columnar and equiaxed zones during solidification and melting in multi-pass welding of steel, Comput. Mater. Sci. 97, 285-294 (2015).
• [17] K. Ghedjati, E. Fleury, M.S. Hamani, M. Benchiheub, K. Bouacha, B. Bolle, Elaboration of AlSi10Mg casting alloys using directional solidification processing, Int. J. Miner. Metall. Mater. 22, 5, 509-515 ( 2015).
• [18] K.J. Kubiak, T.W. Liskiewicz, T.G. Mathia, Surface morphology in engineering applications: Influence of roughness on sliding and wear in dry fretting, Tribol. Int. 44, 11, 1427-1432 (2011).
• [19] H. Yamagata, H. Kurita, M. Aniolek, W. Kasprzak, J.H. Sokolowski, Thermal and metallographic characteristics of the Al-20% Si high-pressure die-casting alloy for monolithic cylinder blocks, J. Mater. Process. Technol. 199, 1-3, 84-90 (2008).
• [20] H. Kaya, E. Çadırlı, M. Gündüz, Dendritic Growth in an Aluminum- Silicon Alloy, J. Mater. Eng. Perform. 16, 1, 12-21 (2007).
• [21] M. Chen, T.Z. Kattamis, Dendrite coarsening during directional solidification of Al-Cu-Mn alloys, Mater. Sci. Eng. A 247, 1-2, 239-247 (1998).
• [22] M. Bamberger, I. Minkoff, and M.M. Stupel, Some observations on dendritic arm spacing in Al-Si-Mg and Al-Cu alloy chill castings, J. Mater. Sci. 21, 8, 2781-2786 (1986).
• [23] B. Karpe, B. Kosec, A. Nagode, M. Bizjak, The influence of Si and V on the kinetics of phase transformation and microstructure of rapidly solidified Al-Fe-Zr alloys, J. Min. Metall. Sect. B Metall. 49, 1, 83-89 (2013).
• [24] N. Raghukiran ,R. Kumar, Effect of scandium addition on the microstructure, mechanical and wear properties of the spray formed hypereutectic aluminum-silicon alloys, Mater. Sci. Eng. A. 641, 0, 138-147 (2015).
• [25] X. Zhu, R. Wang, J. Peng, C. Peng, Microstructure evolution of spray-formed hypereutectic Al-Si alloys in semisolid reheating process, Trans. Nonferrous Met. Soc. China 24, 6, 1766-1772 (2014).
• [26] O. Uzun, T. Karaaslan, M. Gogebakan, M. Keskin, Hardness and microstructural characteristics of rapidly solidified Al-8-16 wt.%Si alloys, J. Alloys Compd. 376, 1-2, 149-157 ( 2004).
• [27] H. Jones, Cooling rates during rapid solidification from a chill surface, Mater. Lett. 26, 3, 133-136 (1996).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).