THE RESISTANCE OF HY130 STEEL TO ENVIRONMENTAL CRACKING IN SEA WATER

Authors
  1. Nikiforuk, T.P.
  2. Carson, J.A.H.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
The Electroslag Refined (ESR) and the Air-Melt Vacuum Degassed (AMVD) forms of the HY130 low alloy steel, along with three weldments, AX140 MIG and E12018 and E14018 stick, have been evaluated for their resistance to environmental cracking under static loading in natural sea water. It was found that under both free corrosion and under cathodically protected conditions, cracks will not initiate in either the ESR or AMVD alloys, their heat-affected zones, or the three weldments, at static stresses close to the yield. For the HY130 alloys and the three weldments studied, fractographic evidence supports a hydrogen-induced cleavage mechanism for both stress corrosion cracking and cracking under cathodic protection.
Report Number
MATERIALS-78-E —
Date of publication
15 Dec 1978
Number of Pages
20
DSTKIM No
80-03167
CANDIS No
90846
Format(s):
Hardcopy;Originator's fiche received by DSIS

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