Study on tensile and fracture properties of 7050-T7451 aluminum alloy based on material forming texture characteristics

Tribological, structural and mechanical characteristics of friction stir processed aluminium-based matrix composites reinforced with stainless steel micro-particles

“…9 which are (111), (200), (220), (311) and 222wherein the fabricated composites had some additional peaks which are (100), (110), (210), and (300) which was the effect of the reinforcing microparticles. The fabricated AA7075-T651/17-4PH possessed the lowest value of crystallite size with 37.4 nm where the dislocation density, d spacing, microstrain as well as FWHM were seen with the highest values in the fabricated AA7075-T651/17-4PH which implies that stainless steel microparticles greatly improved the structural properties of the fabricated composite over the control experiments -FSPed AA7075-T651 and the parent material -AA7075-T651 this was also in line with the work of Hao et al (2019) and Kurgan (2014) Fig . 9: XRD Pattern for the fabricated Samples Table 7 shows the tensile results of the tested samples.…”

“…The tested samples were the parent material (PM) -AA7075-T651 which is unprocessed sample under tensile loading ( control experiment 1), the second specimen tested was processed parent material (PPM) without reinforcement -FSPed AA7075-T651 (control experiment 2) while the last specimen subjected to tensile loading was the aluminium-based matrix composite (ABMC) under the influence of 17-4PH stainless steel micro-particles -AA7075-T651/17-4PH. There some factors that affect the fabrication of ABMC such as the nature of the reinforcement particles, the sizes of the reinforcement particles such as nano, micro, and macro scales, substrate used in the fabrication, volume of the reinforcement applied, as well as matrix interfacial bonding (Hao et al, 2019). 10a-c was characterized with dimple structure which indicates that they are ductile fractures.…”

Effect of Solution Heat Treatment on the Microstructure and Microhardness of 7050 Aluminum Alloy

“…When the temperature was increased to 460 °C for 30 min, the distribut pa ern of the second-phase particles on the grain boundary changed from continuou discontinuous [26]. At the same time, the corrosion pits also gradually reduce, but th are still a small number of insoluble coarse phases distributed on the grain boundaries shown in Figure 6c, when the temperature was increased to 470 °C with a holding tim 30 min, the energy spectrum analysis of the residual second-phase particles revealed the main components of the second-phase particles were Al, Cu, and Fe, with a sm amount of Zn; these insoluble second-phase particles were most likely the original p where fracture occurred, thus reducing the strength of the alloy [27]. Additionally, th insoluble second-phase particles also hinder the migration of the grain boundaries, wh results in reducing the degree of recrystallization of the alloy [28].…”

Influence of carbonaceous agrowastes nanoparticles on physical and Mechanical properties of friction stir processed AA7075-T651 metal matrix composites

“…The fracture mechanism of Aluminium Metal Composites (AMC) are influenced by some parametric factors such as volume of reinforcement, type of reinforcement and material used, distributions of the reinforcement particles, the size of the particles whether is in macro, micro or Nano, more so the matrix as well as the interface properties-this may encompass interfacial bonding strength, precipitations effect, surface roughness, porosity content, [60], etc. It is worth mentioning that particulate reinforcement failure in AMC has been traced to three different sources and they are reinforcement fracture, failure in the matrix as well as interfacial decohesion in the reinforcement matrix [61].…”