RT journal article
T1 Microstructure and mechanical properties of Ti5553 butt welds performed by LBW under conduction regime
A1 Sánchez Amaya, José María
A1 Pasang, Timotius
A1 Amaya Vázquez, Margarita Raquel
A1 López Castro, Juan De Dios
A1 Churiaque Bermejo, Cristina
A1 Tao, Yuan
A1 Botana Pedemonte, Francisco Javier
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
A2 Ingeniería Mecánica y Diseño Industrial
K1 laser beam welding
K1 conduction regime
K1 Ti-5Al-5V-5Mo-3Cr
AB Ti-5Al-5V-5Mo-3Cr (Ti5553) is a metastable   titanium alloy with a high potential use inthe aeronautic industry due to its high strength, excellent hardenability, fracture toughness and highfatigue resistance. However, recent research shows this alloy has a limited weldability. Differentwelding technologies have been applied in the literature to weld this alloy, such as electron beamwelding (EBW), gas tungsten arc welding (GTAW) or laser beam welding (LBW) under keyholeregime. Thus, in tensile tests, joints normally break at the weld zones, the strength of the weldsbeing always lower than that of the base metal. In the present work, a novel approach, based on theapplication of LBW under conduction regime (with a High-Power Diode Laser, HPDL), has beenemployed for the first time to weld this alloy. Microstructure, microhardness and strength of obtainedwelds were analyzed and reported in this paper. LBW under conduction regime (LBW-CR) leads towelds with slightly higher values of Ultimate Tensile Strength (UTS) than those previously obtainedwith other joining processes, probably due to the higher hardness of the fusion zone and to lowerporosity of the weld.
PB MDPI
SN 2075-4701
YR 2017
FD 2017
LK http://hdl.handle.net/10498/33949
UL http://hdl.handle.net/10498/33949
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026