| 2001 №09 (03) | 2001 №09 (05) |
The Paton Welding Journal, 2001, #9, 19-21 pages
Influence of isolated inner defects on fracture resistance of welded joints on aluminium-lithium alloys
T.M. Labur
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
The effect of discontinuities (isolated inner defects) in welded joints of high-strength aluminium alloys 1421 and 1460 was studied. The nature of change of the alloy mechanical properties and fracture toughness was established, depending on the presence of pores and oxide film inclusions in them. It is shown that oxide film inclusions at the same relative dimensions, as those of the pores, have a greater effect on welded joint properties.
Keywords: fusion welding, aluminium-lithium alloys, weld metal, isolated welding defects, pores, oxide film inclusions, mechanical properties, fracture resistance
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