In situ reacted titanium nitride-reinforced aluminum alloy composite

In this paper, an aluminum matrix containing titanium nitride particles was fabricated by an in situ process in which nitrogen gas reacts with titanium in the liquid melt to form TiN. The tensile and yield strength increased by up to 20% after the formation of TiN particles in the Al alloy matrix, whilst the hardness increased by up to 27%. The abrasive and sliding-wear resistance increased with the in situ formation of the TiN particles.