Environmental factors influencing the properties of high-strength steel subjected to the welding thermal cycle

The scientific activity is preliminary research on the properties of high-strength steel subjected to the welding thermal cycle with the use of materials with different degrees of degradation resulting from the environment. The result of the preliminary research are the development of an appropriate research plan, taking into account the critical factors. In the project 5 wire types were chosen and placed in 5 different locations and then after 1, 3 and 6 months, wire samples were taken. After that welded samples were made, which were then tensiled on a testing machine. Thanks to this, it was possible to check how the properties of steel change after welding with flux cored wires from various environments. The next stage of research will include both changes in mechanical, mechanical - corrosive, corrosive and physical properties of steel.

Details

Financial Program Name:: MINIATURA
Organization:: Narodowe Centrum Nauki (NCN) (National Science Centre)
Agreement:: Zgoda z 15.02.2019 z dnia 2018-11-03
Realisation period:: 2018-11-03 - 2019-11-02
Project manager:: dr inż. Aleksandra Świerczyńska
Realised in:: Department of Materials Engineering and Bonding
Request type:: National Research Programmes
Domestic:: Domestic project
Verified by:: Gdańsk University of Technology

Papers associated with that project

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total: 2

Year 2020

Plasticity of Bead-On-Plate Welds Made with the Use of Stored Flux-Cored Wires for Offshore Applications
Publication
- A. Świerczyńska
- M. Landowski
- Materials - Year 2020
Extreme atmospheric conditions in the marine and offshore industry are harmful to engineering materials, especially to welded joints, and may cause degradation of their properties. This article presents the results of research on the plasticity of bead-on-plate welds made using two types of seamless, copper plated flux-cored wires. Before welding, spools with wire were stored for 1 month in two distinct locations with different...

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Year 2019

Effect of Storage Conditions of Rutile Flux Cored Welding Wires on Properties of Welds
Publication
- A. Świerczyńska
- Advances in Materials Science - Year 2019
The influence of storage locations of two grades of rutile flux cored welding wires on their surface condition and the strength of the welds made with them were studied. Wires were stored in real urban conditions (Gdańsk and Katowice) for 1 month, simultaneously recording changes in conditions: temperature and relative humidity of the environment. Visual tests of wires in the delivered and stored condition as well as visual and...

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