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Analysis of the Solidification and Microstructure of Two Aluminium Alloys Reinforced with TiB 2 Particles
Author(s) -
Egizabal Pedro,
García de Cortázar Maider,
Torregaray Amaia,
Veillère Amélie,
Douin Joël,
Silvain JeanFrançois
Publication year - 2011
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201100040
Subject(s) - materials science , microstructure , aluminium , nucleation , metallurgy , ceramic , porosity , grain size , composite material , chemistry , organic chemistry
Two aluminium alloys with 6 wt% TiB 2 particles are studied for applications where increased wear resistance and mechanical strength at high temperature are required. The incorporation of hard ceramic particles has a strong influence on the microstructure and properties of the alloys. TiB 2 particles play an important role in the nucleation of the different phases of the alloys during solidification, and in the reduction of grain size and porosity. The solidification patterns of Al‐Si 7 Mg 0.3 + TiB 2 (6 wt%) and Al‐Cu 5 MgTi + TiB 2 (6 wt%) materials are compared to their corresponding non‐reinforced alloys, and the microstructures are analyzed.