Masina, Bathusile NKgomo, Matshela TTlotleng, MonnammeLekoadi, Paul M2025-12-152025-12-152025-022367-11812367-1696https://doi.org/10.1007/978-3-031-80664-3_4http://hdl.handle.net/10204/14519Laser-directed energy deposition and the in-situ alloying processes were used to manufacture in-situ TiBw/Ti6Al4V composites while varying laser energy density and mass flow rate of TiB2, respectively. A novel network microstructure was observed in all the in-situ TiBw/Ti6Al4V composite specimens. The influence of laser energy density was investigated on the microstructure and microhardness of the in-situ TiBw/Ti6Al4V composite. It was found that the size of grains and in-situ TiB-whiskers varied as the laser energy density increased. A similar matrix morphology was found in all the in-situ TiBw/Ti6Al4V composite specimens. A significant increase was observed in the microhardness of the in-situ TiBw/Ti6Al4V composite specimens as the laser energy density and mass flow rate increased.AbstractenLaser-directed energy depositionTitanium matrix compositesTiBwlTi6Al4VNovel network microstructuresArticlen/a