PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Non-standard heat treatment of cast AZ91 magnesium alloy

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Results of microstructure and mechanical properties investigations of AZ91 magnesium alloy as-cast and after heat treatment are presented. Cylinder samples for uniaxially compression tests were annealed at a temperature of 423 and 623 K for 16 hours (without solution annealing). Alter annealing at 423 K precipitates of γ-Mg17Al12 phase in areas enriched in aluminum solid solution were observed whereas annealing at 623 K caused only homogenizing of solid solution. Investigated materials showed insignificant changes in ultimate compression strength and clearly increase value of yield strength of samples annealed at 623 K.
Rocznik
Strony
31--34
Opis fizyczny
Bibliogr. 15 poz., rys., tab., wykr.
Twórcy
  • Częstochowa University of Technology, Institute of Materials Engineering, al. Armii Krajowej 19, 42-200 Częstochowa, Poland
autor
  • Częstochowa University of Technology, Institute of Materials Engineering, al. Armii Krajowej 19, 42-200 Częstochowa, Poland
Bibliografia
  • [1] Dahle A.K., Lee Y.C., Schaffer P.L., StJohn Development of as-cast microstructure in magnesium aluminium alloys, J Light Met. 1 (2002), 61-72.
  • [2] Duly D., Simon J.P., Brechet Y., On the competition between continuous and discontinuous precipitations binary Mg-Al alloys, Acta Metal. Mater. 43 101-106.
  • [3] Celotto S., Bastow T. J., Study of precipitation in aged binary Mg-Al and ternary Mg-Al-Zn alloys using 27 A spectroscopy, Acta Mater. 49(2001) 41-45.
  • [4] Amir Q.M., Gupta S.P., Cellular precipitation and precipitate coarsening in a Mg-Al alloy, Can. Metal. Quart. 34 (1995) 43-50.
  • [5] Bradai D., Kadi-Hanifi M., Zięba P., Kuschke W. M, Gust W., The kinetics of the discontinuous precipitatic dissolution in Mg-rich Al alloys, J Mater. Sci. 34 (1999) 331-336.
  • [6] Braszczynska K.N., The microstructure of a Mg-10 wt%AL alloys, Zeits. Metal. 93 (2002), 845-850.
  • [7] Bradai D., Kadi-Hanifi M„ Zięba P., Kuschke W. M., Gust W., The kinetics of the discontinuous precipitation and dissolution in Mg-rich Al alloys, J Mater. Sci. 34 (1999), 331-336.
  • [8] Bradai D., Zieba P., Bischoff E., Gust W., A new mode of the discontinuous dissolution reaction in Mg-10 wt.% Al alloys. Mater. Chem. and Phys. 72 (2001), 401-404.
  • [9] Bastow T.J., Celotto S., Clustering and formation of nanoprecipitates in ductile aluminium and magnesium alloys, Mater. Sci. and Eng. C23 (2003), 757-762.
  • [10] Brastow T.J., Smith M.E., Observation of precipitation in Mg-Al alloys by 25Mg and 27A1 NMR, J Phys. Condensed. Matter 7 (1995), 4929-4937.
  • [11] Zhang M.X., Kelly P.M., Crystallography of Mg17Al12 precipitates in AZ91D alloy, Scrip. Mater. 48 (2003), 647-652.
  • [12] Matitrejean S., Verona M., Brechet Y., Prudy G.R., Morphological instabilities in Mg-7.7 at% Al, Scrip. Mater. 41 (2001), 1235-1240.
  • [13] Bursik J., Svoboda M., A HREM and analytical STEM study of precipitates in an AZ91 magnesium alloy, Microchim. Acta 139 (2002), 39-42.
  • [14] Cerri E., Barbagallo S., The influence of high temperature exposure on aging kinetics of a die cast magnesium alloy, Mater. Let. 56 (2002) 716-720.
  • [15] Braszczynska-Malik K.N., Studium kształtowania mikrostruktury stopów magnez-aluminium, Wyd. WIPMiFS PCz., Częstochowa, 2005 (in Polish).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ce5a8972-a95c-49e4-9808-af01f973bf85
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.