Processing of PM aluminium alloy based gradient materials

• Autorzy: Szczepanik S.
• Języki publikacji: EN

Abstrakty

EN

Gradient materials were manufactured from powder mixes of aluminium RAl-1 and aluminium alloy Al17Si5Fe3Cu1.1Mg0.6Zr. The preforms were cold pressed with alloy concentrations ranging from 0% to 100%, at 20% intervals, and then closed-die hot forged at 490 °C. From these materials preforms, with a continuous gradient of chemical composition, were produced. The effects of chemical composition gradient on flow of the material and on mechanical properties in compression were examined. Compression strengths ranged from 470 to 800 MPa. Closed-die plastic working and extrusion of two-layer specimens Al–Al alloy were investigated. Specimens were prepared as two – parallel layer and coat – core type. The LARSTRAN/Shape program was used to model the flow of multi-layer materials during forming. The correlation with experimental data demonstrates the usefulness of the modified program for the analysis of the flow of materials type coat – core.

Słowa kluczowe

EN

aluminium and aluminium alloys; powders; gradient materials; closed-die forging; mechanical properties

PL

aluminium; stopy aluminium; proszki; właściwości mechaniczne

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2012
• Tom: Vol. 12, no. 4
• Strony: 413--417
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Szczepanik S.

• Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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• [3] S. Raach, W. Lehnert, Simulation of the deformation of graded materials, Advanced Engineering Materials 2 (2000) 442–444.
• [4] S. Szczepanik, S. Rabach, Hot forming of aluminium based gradient material, in: Proceedings of the ESAFORM 5th International Conference on Material Forming, Kraków, April 14–17, 2002, pp. 335–338.
• [5] S. Szczepanik, Gradient materials on aluminium alloy basis obtained from powders by hot forming, Inżynieria materiałowa 3–4 (2007) 602–605.
• [6] R. Diez, U. Hindelang, A. Kurz, Revised form of LARSTRAN 80 documentation, LASSO Ingenieurgesellschaft, 1996.
• [7] M. Franzke, PEP Programmer’s Environment for Pre-/Postprocessing – Handbuch zur Version 3.30, Institut fur Bildsame Formgebung, RWTH Aachen, 2001.
• [8] A. Hensel, T. Spittel, Kraft und Arbeitsbedarf bildsamer Formgebungsverfahren, VEB Deutsche Verlag fur Grundstoffindustrie, Leipzig, 1978.
• [9] S. Szczepanik, Przeróbka plastyczna materiałów spiekanych z proszków i kompozytów, AGH Uczelniane Wydawnictwo Naukowo – Dydaktyczne, Kraków, 2003.