IJSR - International Journal of Scientific Research

Dr.T.Vigraman

Volume : VI, Issue : XII, December - 2017

Intermetallic Compound Formation at the Interface of the Diffusion Bonded Joints Ti–4.5Al–2Mo–1.8V–0.5Fe and AISI 410 Stainless Steel

Dr. T. Vigraman

Abstract :

The present study discusses the formation of interfacial reaction products in the dissimilar diffusion bonded joints made between AISI 410 and Ti–4.5Al–2Mo–1.8V–0.5 Fe (Ti–alloy). Diffusion bonding was carried out in the temperature range of 800 –900^oC with an interval of 50 ^oC, holding time 45min and a pressure of 8 MPa. A maximum shear strength of 64.2 MPa was obtained for the diffusion bonded joints processed at a temperature 850^oC, holding time 45min and 8 MPa pressure. Optical and SEM images revealed a distinct diffused region rich with intermetallic compounds at the interface. The EDAX and XRD performed at the interface corroborated the presence of intermetallic compounds and carbides such as Fe₂Ti, Ti₂Al, FeAl₂, Fe₃MoSi, TiAl, TiFe, MoSi₂, FeCrAl, CrC, VC and, TiC.