Effect of Bonding Temperature on Microstructure and Mechanical Properties of Dissimilar Joint Between Inconel 617 and Stainless Steel 310

• Published in: Metallography, microstructure, and analysis Vol. 10; no. 4; pp. 419 - 429
• Main Authors: Mobarakeh, Vahid Salehi, Atapour, Masoud, Niroumand, Behzad, Shamanian, Morteza
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-08-2021; Springer Nature B.V
• Subjects: Bonded joints; Characterization and Evaluation of Materials; Chemistry and Materials Science; Intermetallic compounds; Liquid phases; Materials Science; Mechanical properties; Metallic Materials; Microstructure; Nanotechnology; Nickel base alloys; Shear strength; Solidification; Stainless steel; Stainless steels; Structural Materials; Superalloys; Surfaces and Interfaces; Technical Article; Thin Films; Transient liquid phase bonding; Mechanical properties; Transient liquid phase bonding; Stainless steel 310; Intermetallic compounds; Microstructure; Inconel 617
• ISSN: 2192-9262; 2192-9270
• DOI: 10.1007/s13632-021-00748-4

Dissimilar transient liquid phase (TLP) bonding between stainless steel 310 and Inconel 617 was carried out using a BNi-2 interface layer. TLP joints were fabricated at 1040, 1070 and 1100 °C for a bonding time of 60 min. In addition to microstructural evaluations, the mechanical properties of different TLP joints were also studied. The results indicated that increasing the bonding temperature resulted in decreasing the solidification zones and accelerating the formation of the intermetallic compounds. Among different TLP joints, the joint fabricated at 1040 °C exhibited the highest shear strength of 611 MPa. SEM investigations of the fractured surfaces revealed that the formation of higher amount of intermetallic compounds at higher temperatures deteriorated the shear strength of the Inconel 617/Stainless Steel 310 TLP joint.