In this study, the connection of 825 Ni-8S super alloy to unsaturated super dual phase 32750 stainless steel was investigated by transient liquid phase coupling and optimization of the parameters of this process. For this purpose, samples were first prepared with 5x10x10 mm and the surfaces of these specimens were prepared by smearing and degreasing. The AWS BNi2 foil was then used as the interface layer and bonding agent. The foil is placed between the prepared specimens of the base alloys and placed in the retainers. The holder was made of hot working steel and was made with screws to maintain system alignment. On each series of samples, a pressure of 383 Pascal was applied to reduce the temperature and the time of bonding. Samples were bonded to the vacuum kiln in 8 test series at 1050, 1100, 1150 ° C, 5, 30 and 45 minutes. Samples were made and cross-sectioned and prepared for metallography. A closer examination of the microstructure of the specimens was performed using scanning electron microscopy. The chemical composition of the binding phase phases and the variation in the concentration of alloying elements in the bonding position were studied using a scanning electron microscope equipped with energy dissipation analysis. Finally, the shear strength and toughness of the test site were tested. In the interface between the interface layer and the base alloys of the bonded samples, concentration concentration of the various elements and microstructural changes were observed. These areas indicate the existence of an area affected by influence in these areas. The extent of these areas increased with increasing temperature and time of bonding, but the amount of crude phases in the metal between them increased while increasing the parameters. The nature of the intermetallic compounds of the region affected by penetration was discovered in the form of boride compounds rich in elemental base alloys. The region's physiognomy indicated that the ion rich nickel-rich, highly violet soluble phase was homogeneous. Analysis of changes in microhardness in different regions of the linking of the conditions linking various represents an increase in hardness in the affected areas of influence and the freezing of non-isothermal and stiffness in the affected zone of influence of the temperature and time of linking with a lower slope has changed and the maximum this The characteristic was reduced by increasing these variables. The microstructure and microstructure analysis of the homogenized sample implied the almost complete removal of affected areas. The shear strength of the samples showed the maximum of this parameter in the homogeneous sample