Abstract
Solid state diffusion bonding (DB) of austenitic grade AISI 304 to Ti–6Al–4V alloy plates has been done in vacuum and bonding temperature was diverse from 750 °C to 950 °C in stages of 50 °C, 75 min as holding time and bonding pressure of 14 MPa were used. Optical and SEM (scanning electron microscopy) examinations were done to recognize the integrity of the joint. XRD analysis was likewise completed to affirm development of intermetallic compounds. The mechanical properties at room-temperature of the DB joints were measured by microhardness, ram tensile test, and lap shear testing. The maximum BS (bonding strength) of 244 MPa and LSS (lap shear strength) of 151 MPa were attained for the DB joint handled at a bonding temperature of 900 °C. A diffusion layer thickness (DLT) of 10.54 μm yielded higher mechanical properties compared to other DLT.
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