Digital Library / STP / STP1170-EB / STP24774S



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

Varga, T
Professor,Institute for Material Science and Material Testing and Institute for Testing and Research in Material Technology (TVFA) TU Vienna,Vienna,

Liu, QC
Dipl.-Ing.,Institute for Testing and Research in Material Technology (TVFA) TU Vienna,Vienna,


Pages: 11    Published: Jan 1993


Download this paper for $25 PDF (296K)          View License Agreement
        Click here to download the complete source publication for $103 PDF (7.9M)


Source: STP1170-EB


Abstract

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.


Keywords:
weld metal, fracture toughness, hardness, Charpy V-notch impact test, instrumented impact testing, fractography

Paper ID: STP24774S
Committee/Subcommittee: E10.02
DOI: 10.1520/STP24774S
CrossRef ASTM International is a member of CrossRef.