Thermomechanical effect on the properties of stainless steels using rotative friction welding: an experimental study on 304L and 316L grades

• Published in: International journal of advanced manufacturing technology Vol. 129; no. 9-10; pp. 3849 - 3861
• Main Authors: Arzour, Fatima Zohra, Amara, Mouna, Suleiman, Rami K., Meliani, Mohammed Hadj
• Format: Journal Article
• Language: English
• Published: London Springer London 01.12.2023; Springer Nature B.V
• Subjects: Advanced manufacturing technologies; Austenitic stainless steels; CAE) and Design; Computer-Aided Engineering (CAD; Deformation; Ductility; Engineering; Friction welding; Industrial and Production Engineering; Mechanical Engineering; Mechanical properties; Media Management; Original Article; Stainless steel; Strain hardening; Structural hardening; Temperature; Tensile strength; Tensile tests; Welded joints; Welding parameters; Analytical model; Weld joint; Friction; Welding; Optimization
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-023-12522-7

The main objective of this work is to analyze structural hardening by direct friction welding on two austenitic materials of the AISI 304L and AISI 316L series that were welded separately (similar welding) followed by a combined (mixed) welding. The friction welding parameters such as rotation speed, applied pressure (friction and forging), and holding time were carefully selected and optimized. Forty welding operations and thirty post-welding nominal tensile tests were performed, with the sole purpose of obtaining the rational curves. To achieve this objective, the results of the tensile tests were collected and analyzed. The rational curves allowed us to proceed by classical analytical modeling to quantify the effect of welding on the work-hardening behavior of the two stainless steel samples. The microstructure of each welded joint condition was analyzed and compared to each other.