Evaluation of Microstructure, and Mechanical Properties of Superalloy 59 and 904L Dissimilar welds using Hot Wire Turbo TIG

• Published in: Archives of metallurgy and materials Vol. 70; no. 2; pp. 803 - 817
• Main Authors: Muthukumaran, N., Arulmurugan, B., Sureshkumar, R., Bharathikanna, R.
• Format: Journal Article
• Language: English
• Published: Warsaw Polish Academy of Sciences 25.06.2025
• Subjects: 904l; Capillarity; Cryogenic treatment; dissimilar welding; Ductile fracture; Fracture toughness; Gas tungsten arc welding; Hardness tests; Heat affected zone; Heat treating; hot wire turbo tig; Impact strength; Impact tests; Marangoni convection; Mechanical properties; Microstructural analysis; Microstructure; Structural reliability; superalloy 59; Superalloys; Tensile strength; Welded joints; Welding wire; Weldments; Wire

This research involves the dissimilar welding of a novel combination of superalloy 59 and 904L using Hot Wire Turbo TIG welding (HWTT) with ERNiCrMo-13 filler wire. Macroscopic examination revealed defect-free welds with optimized geometry and minimal heat-affected zone. The bead geometry, influence...