Microstructural Analysis of the Reinforced Al-Cu5mgti/Tib2 5 wt % Alloy for Investment Casting Applications

被引：5

作者：

Egizabal, Pedro ^{[1
]}

Garcia de Cortazar, Maider ^{[1
]}

Douin, Joel ^{[3
]}

Torregaray, Amaia ^{[4
]}

Lahaye, Michel ^{[2
]}

Vincent, Cecil ^{[2
]}

Sivain, Jean-Frangois ^{[2
]}

机构：

[1] Fdn Inasmet, E-20009 Donostia San Sebastian, Spain

[2] Univ Bordeaux 1, ICMCB, CNRS, F-33608 Pessac, France

[3] CNRS, CEMES, UPR 8011, Grp Mat Cristallins Contrainte Crystalline Mat St, F-31055 Toulouse, France

[4] Univ Basque Country, UPV, EHU, Dept Mat Sci, E-48012 Bilbo Bilbao, Spain

来源：

ADVANCED ENGINEERING MATERIALS | 2010年 / 12卷 / 06期

关键词：

GRAIN-REFINEMENT; ALUMINUM-ALLOYS;

D O I：

10.1002/adem.201000031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper describes the influence of 5 tot % titanium diboride (TiB2) 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.

引用

页码：504 / 508

页数：5

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