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In paper it is presented thin wall ductile iron casting (TWDI) as a substitute of aluminium alloy casting. Upper control arm made of ductile iron with wall thickness ranging from 2 - 3.7 mm was produced by inmold process. Structure, mechanical properties and computer simulations were investigated. Structural analysis of TWDI shows pearlitic-ferritic matrix free from chills and porosity. Mechanical testing disclose superior ultimate tensile strength (Rm), yield strength (Rp0,2) and slightly lower elongation (E) of TWDI in comparison with forged control arm made of aluminium alloy (6061-T6). Moreover results of computer simulation of static loading for tested control arms are presented. Analysis show that the light-weight ductile iron casting can be loaded to similar working conditions as the forged Al alloy without any potential failures.
Czasopismo
Rocznik
Tom
Strony
143--146
Opis fizyczny
Bibliogr. 19 poz., rys., tab., wykr.
Twórcy
autor
- University of Science and Technology, Reymonta 23 Str., 30-059 Kraków, Poland, mgorny@agh.edu.pl
Bibliografia
- [1] E. Fraś , M. Górny, W. Stachurski: Problem of Super-Thin Wall Nodular Iron Casting. Archives of Foundry. Vol. 6, No. 21 (1/2) (2006), 43-57.
- [2] D. Stefanescu, R. Ruxanda, Lightweight iron castings-can they replace aluminum castings?, Proceedings of the 65th World Foundry Congress, Gyengju, Korea, (2002), 71-77.
- [3] Loper Jr.C. R., Cast iron-essential alloys for the future Proceedings of the 65th World Foundry Congress, Gyengju, Korea, (2002) 169-179.
- [4] Hornung H., Thin-section ductile iron castings, Proceedings of the 61th World Foundry Congress, Beijing, China, (1995), 75-83.
- [5] C. Yeung, H. Zhao, W. B. Lee, The morphology of solidification of thin-section ductile iron castings", Materials characterization, Elsevier Science Inc., vol. 40, no. 4-5, (1998), 201-208,
- [6] R.E. Ruxanda, D.M. Stefanescu, T.S. Piwonka, Microstructure Characterization of Ductile Thin Wall Iron Castings, AFS Transactions, vol. 110, (2002) 1131-1247.
- [7] O. N. Dogan, K. K. Schrems, J. A. Hawk, Microstructure of thin wall ductile iron castings, AFS Transactions, vol. 111, (2003) 949 - 959.
- [8] D. M. Stefanescu, R. Ruxanda, L. P. Dix, The metallurgy and tensile mechanical properties of thin wall spheroidal graphite irons, Int. J. Cast Metals Research, vol. 16, (2003), 319-324.
- [9] F. R. Juretzko, L. P. Dix, R. E. Ruxanda, D. M. Stefanescu, Precondition of ductile iron melts for light weight casting; effect on mechanical properties and microstructure,AFS Transactions, vol. 112, (2004), 773-785.
- [10] J. W. Torrance, D. M. Stefanescu, Investigation on the effect of surface roughness on the static mechanical properties of thin-wall ductile iron castings, AFS Transactions, vol. 112, (2004), 757-772.
- [11] L. P. Dix, R. E. Ruxanda, J. W. Torrance, M. Fukumoto, D.M. Stefanescu, Static mechanical properties of ferritic and pearlitic lightweight ductile iron castings. AFS Transactions, vol. 111, (2003), 895 - 910.
- [12] A. Javaid, J. Thomson, K.G . Davis, M. Sahoo, Effect of microstructure on the mechanical properties of thin-wall ductile iron castings, AFS Transactions, vol. 109, (2001), 1097-1114.
- [13] A. Javaid, J. Thompson, M. Sahoo, K. G. Davis Factors Affecting the Formation of Carbides in Thin-wall DI Castings, AFS Transactions, vol. 107, (1999), 441-456.
- [14] C. Labrecque, M. Gagne, Production of thin-wall ductile iron castings, Int. J. Cast Metals Research, vol.16, (2003), 313-318.
- [15] J. F. Cuttino, J. R. Andrews, T. S. Piwonka, Development in thin-wall iron casting technology, AFS Transactions, vol. 107, (1999), 363-372.
- [16] F. Mampaey, Z. A. Xu, Mold filling and solidification of a thin-wall ductile iron casting, AFS Transactions, vol. 105, (1997), 95-103.
- [17] J. H. Choi, J. K. Oh, C. O. Choi, J. K. Kim, P. K. Rohatgi, Effect of Bi Formation of Microstructure and Mechanical Properties of Ductile Iron Castings With Thin-Wall Section, AFS Transactions, vol. 112, (2004), 831-840.
- [18] R. E. Showman, R. C. Aufderheide, N. P. Yeomas, Using gate extension to produce thin-wall castings, AFS Transactions, vol. 114, (2006), 391-399.
- [19] E. Fras, M. Górny, Fading of inoculation effects in ductile iron. Archives of Foundry Engineering, vol. 8 (2008), issue 1/2008, 83-88.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ1-0062-0032