[Kovove materialy - Metallic materials]
    Wed - November 13, 2024 - 19:46 No. of hits : 1798076 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 37 (1999), Issue 6

Analysis of intermetallic phases in wrought aluminium alloy prepared by recycling of composite scrap (in Slovak)
PELACHOVA, T., LAPIN, J.
vol. 37 (1999), no. 6, pp. 399 - 411

Abstract
The intermetallic phases are analysed in recycled aluminium alloy with chemical composition Al-2.2Cu-1.7Mg-1.1Ni-0.2Cr-1.1Fe-0.2Mn-0.9Si-0.2Ti-0.3Zn (wt. %) and its mechanical properties are compared to those of industrially produced aluminium alloys with similar chemical composition. The structure of the alloy is composed of aluminium based α-Al) dendrites and multiphase interdendritic region. During heat treatments the nucleation and growth of fine precipitates of Mg2Si, Al2Cu, and Al2CuMg intermetallic phases are observed in the α-Al solid solution. The interdendritic region contains several intermetallic phases with different size and morphology. The major intermetallic compound identified in this region is Al9Fe(Ni,Si) and minor phases are Mg2Si, Al4Cu2Mg8Si7, Al4CuMg5Si4, AlCuMg, (Cu,Al)2Mg, Al7Cu4Ni, Al-Cu-Ni, and Al5(Fe,Cr)Si. After heat treatments the ultimate tensile strength varied between 396 and 421 MPa, 0.2% yield strength between 305 and 372 MPa, and elongation between 8 and 19%. The ductility of the alloy decreased with increasing annealing time and temperature.

Key words
recycling, wrought aluminium alloy, microstructure, phase analysis, mechanical properties

Full text not available

[IMMS SAS]      UMMS SAV - Bratislava (SK) Personal data Protection   ver. 1.8.0      [go to HOME PAGE]
Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


Article abstracts updated: 2024-11-05 11:34      
Articles in press revised: 2024-11-13 07:00     
Full text pdf uploaded: 2024-11-06 09:09    
Information updated: 2023-04-19 16:14   
Code last revised: 2024-03-06 11:13  

© OldSoft, 2004, …, 2024