In the current research Al7075 (Al-5.4Zn-2.6Mg) alloy and composite prepared by dispersing 2 wt.% granite powder 3 Si3N4 in are subjected to peak aging treatment at 100, 120 1500C obtain maximum induced hardness solid solution strengthening. succession, results of pre aged heat treated three step conditions. The indicated that has resulted enhanced 185.6 VHN as compared 142.9 1000C resulting 29...

The microstructure, phase composition, and microhardness of both gas-atomized and mechanically milled powders of the Al7075 + 1 wt % Zr alloy were investigated. The gas-atomized powder exhibited a cellular microstructure (grain size of a few µm) with layers of intermetallic phases along the cell boundaries. Mechanical milling (400 revolutions per minute (RPM)/8 h) resulted in a grain size reduc...

Application of surface modification methods is expected to be a supreme solution to diminishing fretting damage. In this study, our aim was to improve the fretting fatigue life of Al7075-T6 alloy by covering it with a TiN thin film hard coating using the magnetron sputtering technique. Coated specimens with the best surface hardness, adhesion strength and roughness were tested with a rotating b...

The Al2O3-SiC reinforced Al7075 Metal Matrix Composite (MMCs) is fabricated through liquid metallurgical technique. Ceramic particulates were amalgamated into aluminium alloy to achieve improved mechanical properties and wear resistance. Al-7075/Al2O3/SiC hybrid MMCs produced by reinforcing 2%, 3%, 4% 5% of Al2O3 7% SiC particles. Microstructural analysis was carried out evaluate the uniform di...

Abstract The mechanical properties and physical characteristics of aluminum alloy composites can be significantly improved by adding reinforcing phases. However, the high loading reinforcement phase in Al7075-Al 2 O 3 has not been thoroughly studied. In this work, a combination semisolid metal powder processing metallurgy is used to process manufacture with fraction > 40 vol.%. effects param...

Metallic glass-reinforced metal matrix composites are an emerging class of composite materials. The metallic nature and the high mechanical strength of the reinforcing phase offers unique possibilities for improving the engineering performance of composites. Understanding the structure at the amorphous/crystalline interfaces and the deformation behavior of these composites is of vital importanc...

Millions of holes are produced in many industries where efficient drilling is considered the key factor their success. High-quality possible with proper selection process parameters, appropriate tools, and machine setup. This paper deals effects parameters such as spindle speed feed rate on chips analysis hole quality like surface roughness, size, circularity, burr formation. Al7075-T6 alloy, c...