Critical analysis of tig welded joint of titanium G-5 alloy sheet

0452284 - ÚGN 2016 RIV RS eng C - Conference Paper (international conference)
Gope, D. K. - Yadav, S. - Kumar, V. - Chattopadhyaya, S. - Mandal, S. - Hloch, Sergej
Critical analysis of tig welded joint of titanium G-5 alloy sheet.
International Scientific and Expert Conference TEAM 2015 /7./. Belgrade: TEAM International Society, Faculty of Mechanical Engineering, University of Belgrade, 2015 - (Sedmak, A.), s. 411-415. ISBN 978-86-7083-877-2.
[International Scientific and Expert Conference TEAM 2015 /7./. Belgrade (RS), 15.10.2015-16.10.2015]
R&D Projects: GA MŠMT ED2.1.00/03.0082; GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : titanium G5 alloy * TIG welding * microstructure * micro-hardness * welding current
Subject RIV: JQ - Machines ; Tools
http://www.teamsociety.eu/_Data/Files/151023124624884.pdf

Current and speed are important parameters in arc welding. This paper aims to have better understanding on the dependency of some mechanical properties of Ti-G5 alloy at micro level on welding current and speed. A Titanium G5 or Ti-6Al-4V sheet of thickness 2 mm were joined by TIG welding. Welding was carried by varying welding current and speed while keeping other parameters constant. It investigates into microstructures of different zone around the welded joint and found that microstructures become coarser near the Fusion Zone (FZ) and Heat Affected Zone (HAZ). The analysis of microhardness shows that as we move from weld centerline to base metal hardness value decreases.The thermal analysis shows that with increase in temperature the combined area of fusion zone and heat affected zone also increases.
Permanent Link: http://hdl.handle.net/11104/0253307