High-strength aluminum alloys are of increasing interest to the aerospace and automotive industry for critical high-strength components. B-pillars and door beams being of particular interest to the automotive industry Refill friction stir spot welding (RFSSW) offers an attractive means of joining these difficult-to-weld alloys since bulk melting is avoided and no exit hole is left. In this stud...

This article aims in exploring the dry sliding wear performances on aluminum (AA7075) metal matrix composites reinforced with molybdenum disulphide which is a solid lubricant using response surface methodology (RSM). Specific Wear Rate (SWR) for AA7075 pure alloy, AA7075+2wt% and AA7075+4wt% were measured according to ASTM G99 standards pin-on-disc apparatus. Design of experiments was selected ...

expansion equal channel angular extrusion (exp-ecae) is a severe plastic deformation (spd) operation for processing bulk materials. in the current study, aa7075 al was spd-processed by expansion equal channel angular extrusion (ex-ecae) at various temperatures and ram velocities. then, using split hopkinson pressure bar (shpb), the severely deformed products were compressed at room temperature ...

A uniaxial high-temperature tensile test of an AA7075 aluminum alloy sheet was conducted using established induction heating system. Five different types specimens were designed to obtain the stress–strain curves at forming temperatures and strain rates so as construct modify Johnson–Cook constitutive model. The stress states numerically simulated ABAQUS finite element software, triaxiality equ...

The present study provides an overview of previous studies on the welding AA7075-T6 aluminum alloy, followed by investigation influence short-time solution annealing mechanical properties weld. Conventional laser Al-Zn-alloys leads to a low weld strength, which makes post heat treatment (PWHT) favorable. PWHT includes annealing, quenching and subsequent aging. For different holding times coolin...

Aluminum AA7075, graphene nanoplates (GNP), boron nitride (BN), and vanadium carbide (VC) are used to fabricate hybrid nanocomposite matrices. BN VC serve as secondary reinforcement particles in the fabrication of composites, with (GNP) a key component process. Friction stir processing (FSP) was manufacture composite matrix; it also has major role improving microstructure’s grain refinement, we...

Quenching affects the mechanical and corrosion properties of precipitation-hardenable alloys such as aluminum alloy 7075-T6 (AA7075-T6). In this paper, as-quenched AA7075-T6 are predicted within framework quench factor analysis (QFA), using cooling curves obtained from a test. Theoretical computational approaches used to predict spatial temporal variations temperature. The temperature consequen...

Vaporizing foil actuator welding (VFAW), an impact method, was used for the first time to produce high strength welds between SiC-reinforced 8009 aluminum metal matrix composite (MMC) (8009/SiC/11p) and 7075 alloy (AA7075). Microscopic characterization of dissimilar weld revealed multiple heterogenous microstructural zones including unbonded zone at center, a flat interface, wavy trapped jet co...