Mechanical Properties of Welded Joints in Steel S1100QL after Multiple Repair Welding
Journal Title: Biuletyn Instytutu Spawalnictwa - Year 2018, Vol 62, Issue 3
Abstract
The article presents the use of high-strength toughened steels in various industries and the chronological development of various grades of the above-named steels. In addition, the article discusses the repair of defective fragments of welded joints by means of grinding, grooving or machine cutting followed by the making of a repair weld. Occasionally, the repair process must be repeated or performed many times. An issue of particular importance is the repair welding of steels having a yield point of above 700 MPa. Typically, in structures made of high-strength steels the process of repair consist in the removing of an imperfection (primarily having the form of cracks or porosity) followed by the making of another joint in the area of the previously removed imperfection. The tests described in the article were concerned with flat butt joints made of 18 mm thick toughened steel S1100QL using the MAG method and metallic flux-cored wire grade STEIN-MEGAFIL 1100 M (process 138). The tests involved the making of three welded joints, i.e. one production joint and two joints subsequently subjected to three and four-fold repair welding. In addition, the article presents the methodology and results of transverse tensile tests, transverse bend tests, impact strength tests and hardness tests.
Authors and Affiliations
Mirosłąw Łomozik, Eugeniusz Turyk
Keywords
Related Articles
- EP ID EP381029
- DOI 10.17729/ebis.2018.3/1
- Views 41
- Downloads 0
Structure and Properties of Nickel Alloy Overlay Welds Plasma Cladded on Creep-Resistant Steel Tubes
The article presents tests aimed to develop technological parameters of the plasma surfacing of Inconel 625 overlay welds onto boiler tubes (φ 45 × 5 mm) made of steel 13CrMo4-5, providing the content of iron on the over...
Robotic Arc Surfacing in the Additive Technique-Aided Creation of Models
Previously used reconditioning of worn machinery parts based on welding methods, primarily arc surfacing and thermal spraying, enabled the restoring of nominal shapes and dimensions as well as other parameters and functi...
Mechanical Properties of Welded Joints in Steel S1100QL after Multiple Repair Welding
The article presents the use of high-strength toughened steels in various industries and the chronological development of various grades of the above-named steels. In addition, the article discusses the repair of defecti...
Properties of Laser Welded Finned Tubes Made of Nickel Alloys
The article presents test results concerning properties of finned tubes made of the Inconel 625 nickel alloy in terms of their thermal efficiency, resistance to high-temperature corrosion and electrochemical corrosion re...
Hardening Surfacing with Flux-Cored Wire Increasing the Service Life of Rotating Discs of Defiberiser for Mineral Wool Production
The article discusses the MAG method-based surfacing of discs of a mineral wool defiberiser performed using self-shielded arc and submerged arc. In addition, the article presents results of tests concerning the service l...