Mathew J.Mandal A.Warnett J.Williams M.A.Chakraborty M.Srirangam P.2025-02-1720167http://dx.doi.org/10.1016/j.matchar.2016.05.010https://idr.iitbbs.ac.in/handle/2008/995X-ray computed tomography (XCT) was used to characterise the internal microstructure and clustering behaviour of TiB2 particles in in-situ processed Al-Cu metal matrix composites prepared by casting method. Forging was used in semi-solid state to reduce the porosity and to uniformly disperse TiB2 particles in the composite. Quantification of porosity and clustering of TiB2 particles was evaluated for different forging reductions (30% and 50% reductions) and compared with an as-cast sample using XCT. Results show that the porosity content was decreased by about 40% due to semi-solid forging as compared to the as-cast condition. Further, XCT results show that the 30% forging reduction resulted in greater uniformity in distribution of TiB2 particles within the composite compared to as-cast and the 50% forge reduction in semi-solid state. These results show that the application of forging in semi-solid state enhances particle distribution and reduces porosity formation in cast in-situ Al-Cu-TiB2 metal matrix composites. � 2016 Elsevier Inc.enAl-Cu alloyMetal matrix compositeTiB2 particlesX-ray computed tomographyArticle