RT Journal Article T1 Influence of the filler metal on the properties of Ti-6Al-4V electron beam weldments. Part I: Welding procedures and microstructural characterization A1 Irisarri, A. M. A1 Barreda, J. L. A1 Azpiroz, X. AB The use of different procedures for electron beam welding of 17 mm thick Ti-6Al-4V plate and the difficulties found in this process are analysed. When this alloy was welded autogeneously the presence of significant amounts of α martensite was observed, recommending looking for another solution. In the early trials a V joint design was used but distortions and defects were detected in the welds when multi-pass procedures were considered. Consequently, for the remaining weldments K or I joint configurations were selected. Initially, Ti-6Al-4V wire was preferred in order to match mechanical properties with base material but no significant improvement was found leading to consideration of using a less alloyed filler metal. Different commercially pure titanium filler metals have been employed to optimise the performance of the fusion zone of electron beam weldments. In a second paper [1] the influence of the welding procedure on the mechanical properties of the various joints will be discussed. SN 0042-207X YR 2009 FD 2009-11-05 LK https://hdl.handle.net/11556/4614 UL https://hdl.handle.net/11556/4614 LA eng NO Irisarri , A M , Barreda , J L & Azpiroz , X 2009 , ' Influence of the filler metal on the properties of Ti-6Al-4V electron beam weldments. Part I : Welding procedures and microstructural characterization ' , Vacuum , vol. 84 , no. 3 , pp. 393-399 . https://doi.org/10.1016/j.vacuum.2009.08.003 NO The authors wish to thank to the Comision Interministerial de Ciencia y Tecnología (CICYT) for the support given to the MAT 92-0078 and MAT 95-1963E projects and to the Basque Government for the help given to the research programme and, in particular, to the PI-1998:34 project. DS TECNALIA Publications RD 30 jul 2024