Friction stir processing (FSP) is a surface treatment technology that can eliminate casting defects locally by refining microstructures, thereby improving the mechanical properties of material.

Welding of super bainitic and triplex structure steels was studied using AWS A5.5 E11018-M and AWS A5.4 E312-17 electrodes. The existence of martensitic structure at the heat affected zone encourages the occurrence of cold cracking at the HAZ in welding of both super bainitic and triplex steels. Using E312-17 electrode renders the occurrence of cold cracks at the heat affected zone of these steels. The tensile strength of welded joints using E11018-M electrode is higher than that of the pure weld metal of E11018-M electrode. This could be attributed to the dilution of weld metal from the base metal especially carbon content. The V– notch impact test results using E312-17 electrode were slightly higher than that obtained using E11018-M electrode. This could be attributed to the occurrence of cold cracks using E11018-M electrode in addition to the tough austenitic weld metal using E312-17 electrode.

news in steel

Breakthrough technology for carbon-free, hydrogen-based direct reduction for iron ore fines

Primetals Technologies has developed the world ́s first direct reduction process for iron ore concentrates from ore beneficiation not requiring any preprocessing like sintering or pelletizing.

Strenx and Hardox steels provide a 30 percent sales boost for Acoplados Salto

Acoplados Salto has seen a 30 percent boost in sales since the company started to use SSAB’s Strenx performance steel and Hardox wear plate in the trailers it manufactures. Since Acoplados Salto started using Strenx and Hardox steels, customer satisfaction has increased considerably, and demand keeps growing.

Bearing solutions in the steelmaking sector

In steelmaking, bearings are deployed in a vast range of plant and equipment serving both upstream and downstream processes, from the storage yard for raw materials to actual rolling and refining operations.

Primetals Technologies connects metals producers to the future at METEC 2019

From June 25 to 29, 2019 Primetals Technologies will be presenting itself to industry experts at the METEC in Düsseldorf, the world's leading trade show for the metals industry.