Microstructural Characteristics and Mechanical Properties of Ti6Al4V Alloy Fiber Laser Welds

摘要: Abstract In this paper an experimental analysis on laser beam welding process of Ti6Al4 V titanium alloy was performed. Butt joints with a thickness 2 mm were produced and assessed. A high brightness fiber adopted to carry out the analysis. No filler wire shaped grooves used. An plan implemented keeping constant power varying speed. proper device prevent oxidation phenomena that involve Ti at temperatures reached during thermal process. The geometric characteristics beads studied through metallographic inspection cross sections. Vickers micro-hardness tests conducted mid sections its variation in function distance from line achieved. Two tensile strength for each condition performed order evaluate mechanical properties welds. Results revealed contained extent FZ HAZ reduction welds comparison those typical parent metal about 20%, which is good result other previous research works.