RT Journal Article T1 Microstructural analysis of the reinforced Al-Cu5mgti/Tib2 5wt % alloy for investment casting applications A1 Egizabal, Pedro A1 De Cortazar, Maider García A1 Douin, Joël A1 Torregaray, Amaia A1 Lahaye, Michel A1 Vincent, Cécil A1 Silvain, Jean Frangois AB The paper describes the influence of 5wt % 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 TiB2 particles and 4% ex situ of TiB2 particles. The comparison of the reinforced alloy with the corresponding non-reinforced counterpart makes clear that the presence of TiB2 particles has a large influence in the observed microstructure. The presence of TiB2 particles decreases the grain sizes and the porosity level. It is also found that TiB2 particles play an important role in the precipitation events of Al2Cu precipitates that are formed during solidification at the TiB2/aluminum matrix interfaces. SN 1438-1656 YR 2010 FD 2010-06 LA eng NO Egizabal , P , De Cortazar , M G , Douin , J , Torregaray , A , Lahaye , M , Vincent , C & Silvain , J F 2010 , ' Microstructural analysis of the reinforced Al-Cu5mgti/Tib 2 5wt % alloy for investment casting applications ' , Advanced Engineering Materials , vol. 12 , no. 6 , pp. 504-508 . https://doi.org/10.1002/adem.201000031 DS TECNALIA Publications RD 31 jul 2024