Advantages of the Application of the Temper Bead Welding Technique During Wet Welding - Publication - MOST Wiedzy

Search

Advantages of the Application of the Temper Bead Welding Technique During Wet Welding

Abstract

Thermo-mechanically rolled S460ML steel was chosen for welding in underwater wet welding conditions by covered electrodes. The main aim of this study was to check the weldability for fillet welds in a water environment by controlled thermal severity (CTS) tests and to check the influence of temper bead welding (TBW) on the weldability of the investigated steel. Non-destructive and destructive tests showed that S460ML steel has a high susceptibility to cold cracking. In all joints, hardness in the heat-affected zone (HAZ) was extended to the 400 HV10 values. Microscopic testing showed the presence of microcracks in the HAZ of all welded joints. TBW was chosen as the method to improve the weldability of the investigated steel. This technique allows for the reduction of the maximum hardness in the HAZ below the critical value of 380 HV10, as stated by the EN-ISO 15614-1:2017. It was determined that for S460ML steel, from the point of view of weldability, the pitch between two beads should be in the range 75%-100%. Also, if the pitch between two beads increases, the hardness, grain size, and number of cracks decreases. In all specimens where the hardness of the HAZ was below 380 HV10, there were no microcracks.

Citations

  • 2

    CrossRef

  • 1

    Web of Science

  • 0

    Scopus

Details

Category:
Magazine publication
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
Materials no. 12, pages 915 - 915,
ISSN: 1996-1944
Language:
English
Publication year:
2019
Bibliographic description:
Tomków J., Rogalski G., Fydrych D., Łabanowski J.: Advantages of the Application of the Temper Bead Welding Technique During Wet Welding// Materials. -Vol. 12, nr. 6 (2019), s.915-915
DOI:
Digital Object Identifier (open in new tab) 10.3390/ma12060915

seen 15 times

Publikacje, które mogą cię zainteresować

Meta Tags