Next Article in Journal
Primary Structure and Graphite Nodules in Thin-Walled High-Nickel Ductile Iron Castings
Next Article in Special Issue
Characterization of Local Residual Stress at Blade Surfaces by the V(z) Curve Technique
Previous Article in Journal
Study of Carbide Dissolution and Austenite Formation during Ultra-Fast Heating in Medium Carbon Chromium Molybdenum Steel
Previous Article in Special Issue
An Equivalent Calculation Method for Press-Braking Bending Analysis of Integral Panels
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle

B4C Particles Reinforced Al2024 Composites via Mechanical Milling

Advanced Materials Research Center (CIMAV), National Laboratory of Nanotechnology, Miguel de Cervantes No. 120, Chihuahua C.P. 31136, Mexico
La Salle University of Chihuahua, Prol. Lomas de Majalca No. 11201, Chihuahua C.P. 31020, Mexico
CONACYT-The Mexican Corporation for Research on Materials (COMIMSA), Ciencia y Tecnología 790, Fracc. Saltillo 400, Saltillo C.P. 25290, Mexico
Author to whom correspondence should be addressed.
Metals 2018, 8(8), 647;
Received: 13 July 2018 / Revised: 3 August 2018 / Accepted: 14 August 2018 / Published: 17 August 2018
(This article belongs to the Special Issue Modern Aerospace Materials)
PDF [4667 KB, uploaded 17 August 2018]


The control of a homogeneous distribution of the reinforcing phase in aluminum matrix composites is the main issue during the synthesis of this kind of material. In this work, 2024 aluminum matrix composites reinforced with boron carbide were produced by mechanical milling, using 1 and 2 h of milling. After milling, powdered samples were cold consolidated, sintered and T6 heat treated. The morphology and microstructure of Al2024/B4C composites were investigated by scanning electron microscopy; analysis of X-ray diffraction peaks were used for the calculation of the crystallite size and microstrains by the Williamson–Hall method. The mechanical properties were evaluated by compression and hardness tests. B4C particles were found to be well dispersed into the aluminum matrix as a result of the high-energy milling process. The crystallite size of composites milled for 2 h was lower than those milled for 1 h. The hardness, yield strength and maximum strength were significantly improved in the composites processed for 2 h, in comparison to those processed for 1 h and the monolithic 2024 alloy. View Full-Text
Keywords: Al2024; boron carbide; mechanical milling Al2024; boron carbide; mechanical milling

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Carreño-Gallardo, C.; Estrada-Guel, I.; López-Meléndez, C.; Ledezma-Sillas, E.; Castañeda-Balderas, R.; Pérez-Bustamante, R.; Herrera-Ramírez, J.M. B4C Particles Reinforced Al2024 Composites via Mechanical Milling. Metals 2018, 8, 647.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top