The influence of the carbon equivalent on the weldability of high-strength low-alloy steel in the water environment
Jacek Tomków , Michalina Tomków
AbstractFrom 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.
|Journal series||Przegląd Spawalnictwa, ISSN 0033-2364, e-ISSN 2449-7959, (0 pkt)|
|Publication size in sheets||2.15|
|Keywords in English||underwater welding, weldability, covered electrodes, carbon equivalent, hardness measurements|
|License||Journal (articles only); published final; ; with publication|
|Score||= 5.0, 03-02-2020, ArticleFromJournal|
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