The most effective method to reduce CO2 gas emission from the steam power plant is to improve its performance by elevating the steam temperature to more than 700 ◦C. For this, it is necessary to develop applicable materials at high temperatures. Ni-based Alloy 617 and 12Cr steel are used in steam power plants, due to their remarkable mechanical properties, high corrosion resistance, and creep s...

Exit-holes in friction stir welded dissimilar aluminum-copper (Al–Cu) joints are repaired by using probeless tools, forcing the surrounding material to fill exit-hole cavity. The repair refilling same base materials is performed two steps tools of different diameters. In this study, conditions investigated, keeping processing parameters constant and varying tool shoulder Namely, a sequence with...

Abstract In this publication, cold gas spraying (CGS) is investigated as an enabler for aluminum-steel joints. Using a powder-based coating process to adhere steel layer aluminum substrate allows component be welded the deposited by resistance spot welding. This method permits metallurgical connection between similar materials separated, while mechanical bonding ensures at dissimilar aluminum-t...

This study aims at assessing the sensitivity of ultrasonic welding process for joining epoxy- to thermoplastic-based composites heating time. For that, carbon fibre (CF)/epoxy adherends with a co-cured PEI coupling layer were ultrasonically welded CF/polyetheretherketone (PEEK) different times. Process-induced changes in meso and microstructure these welds identified correlated weld strength. S...