Grain refinement in aluminium and the aluminium Al-Cu-Mg-Mn alloy by hydrostatic extrusion

• Autorzy: Lewandowska M. , Garbacz H. , Pachla W. , Mazur A. , Kurzydłowski K. J.
• Konferencja: Sol-Gel Materials Research, Technology, Applications SGM'04, 6-11 june 2004
• Języki publikacji: EN

Abstrakty

EN

Hydrostatic extrusion was used as a method for grain refinement in technically pure aluminium andin an aluminium alloy. Both materials were deformed up to a true strain of ~4. Such a deformation resulted in substantial grain size refinement to below 1 žm in aluminium and below 100 nm in the aluminium alloy. In pure aluminium, microstructure evolution proceeds by a continuous increase in the grain boundary misorientation, without changing the grain size. In the aluminium alloy, which has lower stacking fault energy, grains continuously decrease in size, down to the nanometre scale. As a consequence of such microstructure evolutions, the mechanical properties of pure aluminium remain almost constant within a wide range of strains, whereas the mechanical properties of the aluminium alloy are significantly improved. From the present study, one can conclude that hydrostatic extrusion can offer an alternative way to produce nano-metallic elements made of aluminium alloys for light-weight applications.

Słowa kluczowe

EN

aluminium; aluminium alloys; ultra-fine grained microstructure; severe plastic deformation; hydrostatic extrusion

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 1
• Strony: 279--286
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Lewandowska M.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ołoska 141, 02-507 Warsaw, Poland

autor

Garbacz H.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ołoska 141, 02-507 Warsaw, Poland

autor

Pachla W.

• Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland

autor

Mazur A.

• Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland

autor

Kurzydłowski K. J.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ołoska 141, 02-507 Warsaw, Poland

Bibliografia

• [1] VALIEV R.Z., ISLAMGALIEV R.K., ALEXANDROV I.V., Progr. in Mat. Sci., 45 (2000), 103.
• [2] SEGAL V.M., Mater. Sci. Eng., A197 (1995), 157.
• [3] HORITA Z., FUJINAMI T., NEMOTO M., LANGDON T.G., J. Mat. Proc. Techn., 117 (2001), 288.
• [4] ZHILYAEV A.P., LEE S., NURISLAMOVA G.V., VALIEV R.Z., LANGDON T.G., Scripta Mater., 44 (2001), 2753.
• [5] KORZNIKOV A.V., PAKIELA Z., KURZYDLOWSKI K.J., Scripta Mater., 45 (2001), 309.
• [6] IWAHASHI Y., HORITA Z., NEMOTO M., LANGDON T.G., Acta Mater., 46 (1998), 3317.
• [7] ZHILAYAEV A.P., KIM B.-K., NURISLAMOVA G.V., BARO M.D., SZPUNAR J.A., LANGDON T.G., Scripta Mater., 46 (2002), 575.
• [8] SAITO Y., UTSUNOMIYA H., TSUJI N., SAKAI T., Acta Mater., 47 (1999), 579.
• [9] RICHERT M., LIU Q., HANSEN N., Mat. Sci. Eng., A260 (1999), 275.
• [10] HUANG J.Y., ZHU Y.T., JIANG H., LOWE T.C., Acta Mater., 49 (2001), 1497.
• [11] LIU Q., HUANG X., LLOYD D.J., HANSEN N., Acta Mater., 50 (2002), 3789.
• [12] STYCZYŃSKI L., PACHLA W.,WOJCIECHOWSKI S., Metal Sci., 16 (1982), 525.
• [13] LEWANDOWSKA M., GARBACZ H., PACHLA W., MAZUR A., KURZYDLOWSKI K.J., Solid State Phenomena, 101–102 (2005), 65.
• [14] Mechanical Behaviour of Materials Under Pressure, H. Li Pugh (Ed.), Elsevier, Amsterdam, 1970.
• [15] SUN P.L., YU C.Y., KAO P.W., CHANG C.P., Scripta Mater., 47 (2002), 377.
• [16] CAO W.Q., GODFREY A., LIU Q., Mat. Sci. Eng., A361 (2003), 9.
• [17] HASEGAWA H., KOMURA S., UTSUNOMIYA A., HORITA Z., FURUKAWA M., NEMOTO M., LANGDON T.G., Mat. Sci. Eng., A265 (1999), 188.
• [18] MORRIS D.G.,MORRIS M.A., Acta Mater., 50 (2002), 4047.
• [19] CABIBBO M., EVANGELISTA E., LATINI V., NES E., TANGEN S., Mat. Sci. Forum, 426–432 (2003), 2673.
• [20] HUGHES D.A., HANSEN N., Acta Mater., 45 (1997), 3871.
• [21] MURAYAMA M., HORITA Z., Hono K., Acta Mater., 49 (2001), 21.