The paper presents the evaluation of the mechanical and fatigue properties of an ultrafine-grained (UFG) Al 6061 alloy processed by high-pressure torsion (HPT) at room temperature (RT). A comparison is made between the UFG state and the coarse-grained (CG) one subjected to the conventional aging treatment Т6. It is shown that HPT processing leads to the formation of the UFG microstructure with ...

The ultrafine grained (UFGed) 1050 Al plates with a thickness of 2 mm, which were produced by the accumulative roll bonding technique after five cycles, were friction stir butt welded to 2 mm thick 6061-T6 Al alloy plates at a different revolutionary pitch that varied from 0.5 to 1.25 mm/rev. In the stir zone, the initial nano-sized lamellar structure of the UFGed 1050 Al alloy plate transforme...

Demand for metal matrix composites (MMCs) is expected to increase in these applications, such as ‎in the aerospace and automotive sectors. Adequate joining techniques, which are important ‎structural materials, have not yet been developed Metal Matrix Composite (MMCs), however. ‎This work aimed demonstrate feasibility of ‎friction stir welding (FSW) ‎underwater friction (UFSW) Al 6061/5, 6061/1...

Abstract It is an underlying fact for the case of joining process especially welding to have optimized parameters achieve joints with outstanding mechanical characteristics. In current article, using stir-cast aluminum-based alloy (Al 6061) Al 6061/5%wt. silicon carbide, 6061/10%wt. and 6061/18%wt. carbide was welded underwater friction-stir process. Optimum [namely, tool rotating speed (N), (S...

Aluminum matrix composites (AMCs), reinforced with ceramic particulates, have significant applications in the field of aerospace, marine, automobiles, sports and recreation. Al-TiC particulate composite has better potential for high-temperature applications. The corrosion behaviour of Al 6061-TiC particulate composites prepared by stir casting route, has been explored in chloride medium using e...

Abstract Under cold spray conditions, the modified Johnson–Cook model was adopted to perform single and multiple particle simulation for spherical elongated aluminum alloy- Al-6061 feedstock particles. The splat formations were realistically presented; temperature evolution throughout deposition process stayed below melting point of Al-6061, particles exhibited restitution impact velocities low...

The thermal expansion behaviour of silicon carbide (SCS-2) fibre reinforced 6061 aluminium matrix composite subjected to the influenced thermal mechanical cycling (TMC) process were investigated. The thermal stress has important effect on the longitudinal thermal expansion coefficient of the composites. The present paper used experimental data of the thermal expansion behaviour of a SiC/Al comp...