Neutron and X-ray Diffraction Texture Analysis of Novel Al-Si-Mg Alloy

18th International Conference on Textures of Materials

材料科学;物理学

Kucerakova, M.^1 ; Vratislav, S.^1 ; Kalvoda, L.^1 ; Capek, J.^1 ; Dragounova, K.^1 ; Cech, J.^2

Department of Solid State Engineering, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, Prague 2

120 00, Czech Republic^1

Department of Materials, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, Prague 2

120 00, Czech Republic^2

关键词: Characterization methods;    Crystallographic phasis;    Crystallographic textures;    Instrumental neutron activation analysis;    Microstructure analysis;    Neutron diffractometer;    Preferential orientation;    X-ray diffraction method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/375/1/012038/pdf
DOI  :  10.1088/1757-899X/375/1/012038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Crystallographic texture and microstructure of as-casted specimen of a novel aluminum-based alloy is analyzed. Pole figures recorded by means of neutron and X-ray diffraction methods are used as the primary data in texture analysis. The data collection is performed on the SmartLab diffractometer (Rigaku) diffractometer with Cu rotating anode X-ray tube, and the KSN-2 neutron diffractometer located at the research reactor LVR-15 in the Nuclear Research Institute, plc. Rez, Czech Republic. Software tools GSAS, X'Pert Texture, and MTEX are applied in the subsequent data processing. Additional characterization methods applied include elemental composition analysis by the instrumental neutron activation analysis, phase analysis by X-ray fluorescence and X-ray diffraction, and microstructure analysis by scanning electron microscopy and metallographic optical microscopy. Elemental composition of the alloy is dominated by Al (79.91 wt.%), Si (9.90 wt. %) and Mg (4.19 wt. Aluminum (cubic, Fm3m), silicon (cubic, Fd3m) and magnesium silicide (Mg2Si, cubic, Fm3m) phases are then identified as the main crystallographic phases. Crystallographic preferential orientation of the main Al phase is only analyzed and discussed; the other two phases do not provide well-resolved diffraction maxima necessary for a reliable texture analysis.