FURTHER MECHANICAL TESTING OF WELDS MADE IN TWO PREVIOUS DREA WELDING PROGRAMS

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Authors
  1. Malik, L.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Fleet Technology Ltd, Kanata ONT (CAN)
Abstract
Dynamic tear specimens, nominally 25 mm thick, were machined from ten existing welds, available from two previous DREA programs. The welds had been deposited in HY80 and HY100 steels, using the pulsed gas metal arc welding process. The dynamic tear specimens, notched in the through-thickness orientation at the weld metal centreline or the heat affected zone at the mid-thickness location, were tested at Dockyard Laboratory (DREA) over a range of temperatures spanning the transition region. The results obtained, mainly the absorbed energies, have been compared with those from the 16 mm thick dynamic tear specimens tested in the two previous programs. This comparison, along with the fracture path examination in selected specimens indicates that the standard 16 mm thick specimens generally rank the weld metal toughness in the same order as do the 25 mm thick specimens.
Report Number
DREA-CR-93-419 — Contractor Report
Date of publication
01 Apr 1993
Number of Pages
56
DSTKIM No
94-00231
CANDIS No
136331
Format(s):
Hardcopy;Document Image stored on Optical Disk;Originator's fiche received by DSIS

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