@inproceedings{e3666352bac547df8ef81b3f88340f31,
title = "Influence of process parameters on porosity behaviour of laser metal deposited titanium composites",
abstract = "This research paper reports the effect of laser power on the degree of porosity of the deposited tracks and characterized the specific porous structures of the deposits. The samples were characterized through the microstructure and the porosity analysis. The results revealed that as the laser power was increased, the degree of porosity was however reduced. Prior the characterization process, titanium alloy and boron carbide (Ti6A14V-B4C) composites powder were deposited on Ti6A14V substrate using laser metal deposition (LMD) process through the application of Ytterbium fibre laser system. The laser power was varied between 800 W and 2400 W at interval of 200 W while all other process parameters were kept constant. The maximum capacity of this laser system is 3.0 KW which provides beam size of 4 mm for the control characterization of the deposited samples. The porosity behaviour of various samples at different laser power were observed in which the degree of their porosities varies as the laser power increases. At a laser power of 2200 W, there was no porosity observed in the composite which revealed that there were no unmelted powder presented in the melt pool after solidification for this particular sample. Percentage porosity was significantly reduced from 0.45% to 0.03%.",
keywords = "Boron carbide, Laser power, Porosity, Processing parameters, Titanium alloy",
author = "Ogunlana, {Musibau O.} and Akinlabi, {Esther T.}",
year = "2016",
language = "English",
series = "Lecture Notes in Engineering and Computer Science",
publisher = "Newswood Limited",
pages = "832--837",
editor = "Grundfest, {Warren S.} and Craig Douglas and Ao, {S. I.}",
booktitle = "WCECS 2016 - World Congress on Engineering and Computer Science 2016",
note = "2016 World Congress on Engineering and Computer Science, WCECS 2016 ; Conference date: 19-10-2016 Through 21-10-2016",
}