| 2007 №09 (02) | 2007 №09 (04) |
The Paton Welding Journal, 2007, #9, 11-16 pages
Features of micromechanism of fracture in joints of aluminium-lithium alloys produced by plasma welding
T.M. Labur, A.A. Grinyuk, T.G. Taranova, V.A. Kostin, A.G. Poklyatsky
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Comparative analysis of fracture toughness of metal of welds in high-strength aluminium-lithium alloys 1420 and 1460 produced by plasma welding in the gravity position and with backing using serial welding wires SvAMg63 and Sv1201, has been carried out. Peculiarities of fracture micromechanism of welded joints in case of off-centre tension are determined on the basis of analysis of specimen fracture.
Keywords: plasma welding, aluminium-lithium alloys, welded joints, weld, fusion zone, technological backing, fracture resistance, fracture relief
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