Microstructural Analysis of the Reinforced Al‐Cu5mgti/Tib 2  5 wt % Alloy for Investment Casting Applications | Zendy

Egizabal Pedro | Zendy; García de Cortazar Maider | Zendy; Douin Joël | Zendy; Torregaray Amaia | Zendy; Lahaye Michel | Zendy; Vincent Cécil | Zendy; Silvain JeanFrangois | Zendy

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Microstructural Analysis of the Reinforced Al‐Cu5mgti/Tib 2 5 wt % Alloy for Investment Casting Applications

Author(s) -

Egizabal Pedro,

García de Cortazar Maider,

Douin Joël,

Torregaray Amaia,

Lahaye Michel,

Vincent Cécil,

Silvain JeanFrangois

Publication year - 2010

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.201000031

Subject(s) - materials science , microstructure , alloy , titanium diboride , metallurgy , investment casting , casting , precipitation , aluminium , porosity , titanium , composite material , ceramic , mold , physics , meteorology

The paper describes the influence of 5 wt % titanium diboride (TiB 2 ) particles on the microstructure of an Al‐Cu alloy produced by plaster casting process. The elaboration route leads to a composite material with 1% of in situ TiB 2 particles and 4% ex situ of TiB 2 particles. The comparison of the reinforced alloy with the corresponding non‐reinforced counterpart makes clear that the presence of TiB 2 particles has a large influence in the observed microstructure. The presence of TiB 2 particles decreases the grain sizes and the porosity level. It is also found that TiB 2 particles play an important role in the precipitation events of Al 2 Cu precipitates that are formed during solidification at the TiB 2 /aluminum matrix interfaces.

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