The influence of the carbon equivalent on the weldability of high-strength low-alloy steel in the water environment

Jacek Tomków , Michalina Tomków

Abstract

From many years, the high strength low alloy steels are often used for offshore constructions. This constructions, due to the environment in which they work, require more frequent repairs than the constructions from the land. For economic reasons, repairs take place in the underwater conditions, however water significantly decreases the weldability of steel. The paper presents the results of the CTS weldability test for S460ML and S460 steels, which have a similar value of the yield point, but different carbon equivalent (CeMIS) values. The welded joints were cut into specimens, which were then subjected to Vickers HV10 hardness measurements. The experiment has shown that as the CeMIS value increases, the hardness in the heat affected zone (HAZ) of joints and in the weld metal increases.
Author Jacek Tomków
Jacek Tomków,,
-
, Michalina Tomków (UG)
Michalina Tomków,,
- University of Gdańsk
Journal seriesPrzegląd Spawalnictwa, ISSN 0033-2364, e-ISSN 2449-7959, (0 pkt)
Issue year2019
Vol91
No5
Pages43-49
Publication size in sheets2.15
Keywords in Englishunderwater welding, weldability, covered electrodes, carbon equivalent, hardness measurements
DOIDOI:10.26628/wtr.v91i5.1001
URL http://dx.doi.org/10.26628/wtr.v91i5.1001
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)5
Score sourcejournalList
ScoreMinisterial score = 5.0, 03-02-2020, ArticleFromJournal
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