A study of the composition and microstructure of aluminum matrix composites reinforced with alumina fibers

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Zolotova, D.^1 ; Serpova, V.^2 ; Prokofiev, M.^1 ; Rabinskiy, L.^1 ; Shavnev, A.^2

Moscow Aviation Institute, 4, Volokolamskoe shosse, Moscow

125993, Russia^1

All-Russian Scientific Research Institute of Aviation Materials, 17, Radio St., Moscow

105005, Russia^2

关键词: Alumina fiber;    Aluminum based metal matrix composites;    Aluminum matrix composites;    Constant mass;    Elemental compositions;    Spinel phase;    X ray fluorescence analysis;    X-ray microanalysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012135/pdf
DOI  :  10.1088/1757-899X/124/1/012135

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

This article presents the results of a study of the microstructure and the composition of aluminum-based metal matrix composites (MMC) reinforced with continuous alumina fibers. An Al-Mg-Cu alloy similar to that of AA 2024 was used. X-ray diffraction and X-ray fluorescence analyses were used for investigation of a probable volume fraction of a spinel phase in MMC. Scanning electron microscopy and an X-ray microanalysis were used to study a change of the elemental composition of the composites microstructure on the polished cross sections. The constant mass fractions of magnesium (0.65 wt. %) and copper (1.25 wt. %) were found in the interphase area within radius of 1 μm around fibers.