Author:
Prokic-Cvetkovic R.,Kastelec-Macura S.,Milosavljevic A.,Popovic O.,Burzic M.
Abstract
The experiment have been performed using samples of welded joints of the
three components aluminium alloy AlMg4,5Mn. The welding was performed with
GTAW in the shielded atmosphere of Ar+0,015N2, mixture of the inert gases
Ar+50%He+0,015N2 and Ar+70%He+0,015N2. After welding has been completed, the
metallographic tests, the tensile test and the tests of the hardness were
performed. Also, the weld metal toughness was estimated, using the
instrumental Charpy impact testing system, followed by estimating the crack
initiation energy, crack growth energy and the fracture mechanics parameters.
The goal was to establish the effects of shielding atmosphere composition on
the mechanical properties and fracture mechanics parameters of weld metal.
Publisher
National Library of Serbia
Subject
Materials Chemistry,Metals and Alloys,Mechanics of Materials,Geotechnical Engineering and Engineering Geology
Cited by
9 articles.
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