SYMPOSIA PAPER Published: 01 January 1993
STP24774S

Investigation on the Impact Strength and Toughness of A533 Grade B Composition Weld Metal Using Small Specimens

Source

An investigation was carried out to determine the impact strength and the fracture toughness of the multipass submerged arc (SA) weld metal of A533 grade B (20MnMoNi55) composition using Charpy V-notch and precracked Charpy-type specimens. The experimental results show that there is no large difference between the micro-hardness measured in the primary and secondary zones of the SA weld metal. The Charpy V-notch impact and fracture mechanics tests yield similar results in the primary and secondary zones. Nearly all specimens investigated exhibit the phenomenon of crack jump (“pop-in” of the load), that is, sudden cleavage or quasicleavage often followed by arrest of the crack.

Author Information

Varga, T
Institute for Material Science and Material Testing and Institute for Testing and Research in Material Technology (TVFA) TU Vienna, Karlsplatz, Vienna, Austria
Liu, QC
Institute for Testing and Research in Material Technology (TVFA) TU Vienna, Karlsplatz, Vienna, Austria
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Details
Developed by Committee: E10
Pages: 183–193
DOI: 10.1520/STP24774S
ISBN-EB: 978-0-8031-5228-1
ISBN-13: 978-0-8031-1478-4