@inproceedings{7d602288bcb6451abb7c6ce364fdf6ea,
title = "Microstructural evaluation of ZrC reinforced Al-Cu matrix alloy composites fabricated by mechanical alloying and vacuum hot pressing",
abstract = "In this work, Al-4wt.%Cu composites comprising two differently sized ZrC reinforcing particles (157 μm and 8 μm) were fabricated by high energy ball milling and vacuum hot pressing. Vacuum hot pressing experiments were carried out at 550°C under a pressure of 70 MPa on Al-4wt. %Cu composite powders ball milled for 3h. Effects of reinforcement size on the microstructural and physical properties of the composites were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy-dispersive spectrometry (EDS) techniques. Following vacuum hot pressing, approximately relative density values of 98 % were achieved for all hot pressed Al-4wt.%Cu composites. Highest microhardness values were measured for the hot pressed Al-4wt.%Cu composites containing the smallest sized ZrC reinforcing particles (8 μm). On the basis of analysis, in addition to the Al, ZrC and Al 2Cu phase reflections, a tetragonal Al7Cu2Fe phase was formed due to iron contamination from balls and/or vial in the metal matrix composite during MA process.",
keywords = "Al-matrix composites, Mechanical alloying, Microstructure, Vacuum hot pressing",
author = "H{\"u}lya Kaftelen and Necip {\"U}nl{\"u} and {\"O}ve{\c c}oǧlu, {L{\"u}tfi M.} and Hani Henein",
year = "2010",
language = "English",
isbn = "9780873397520",
series = "TMS Annual Meeting",
pages = "189--196",
booktitle = "TMS 2010 - 139th Annual Meeting and Exhibition - Supplemental Proceedings",
note = "TMS 2010 - 139th Annual Meeting and Exhibition ; Conference date: 14-02-2010 Through 18-02-2010",
}