Joining FE55006 Cast Iron and SAE 8620 Steel by Friction Hydro-Pillar Processing (FHPP)

• Published in: Metal science and heat treatment 2023-11, Vol.65 (7-8), p.524-528
• Main Authors: Landell, Renan Mensch, Rossatto, Thiago Tauchen, Buzzatti, Diogo Trento, Lemos, Guilherme Vieira Braga, Lessa, Cleber Rodrigo De Lima, Saraiva, Daniel, Martinazzi, Douglas, Reguly, Afonso
• Format: Article
• Language: English
• Subjects: Alloys; Carbon steel; Cast iron; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Dissimilar material joining; Dissimilar materials; Engineering Thermodynamics; Ferrous alloys; Friction stir welding; Hardness; Heat and Mass Transfer; Iron, Nodular; Low carbon steels; Macrostructure; Materials Science; Metallic Materials; Microhardness; Nickel chromium molybdenum steels; Nodular iron; Residual stress; Steel, Structural; Welded Joints
• ISSN: 0026-0673; 1573-8973
• DOI: 10.1007/s11041-023-00964-5

The possibility of using a special type of Friction Stir Welding (FSW) – Friction Hydro Pillar Processing (FHPP) to manufacture a joining between dissimilar materials (high-carbon ductile iron FE55006 and low-carbon steel SAE 8620) is studied. The macrostructure, microstructure, microhardness and residual stresses of the welded joint are determined. The efficiency of using the FHPP technology for obtaining high-quality joints from dissimilar iron-based alloys is demonstrated. It is established that such joints have a high hardness due to the formation of a martensitic structure in the alloys during their processing by the FHPP method.