In this research, frictions stir welding of aluminum alloy AA2024 and with its similar plate having a cross section 100 x 50 5 mm. The work piece is heating variation temperature holding time cooled it in water. Heat treated work-piece welded by friction process tool rotation speed other parameters are constant for all experiment. For experiment design using the selected control Temperature, th...

Stress formation of monocrystals and bicrystals is investigated in specific oriented grains grain boundaries AA2024 alloy by using Crystal Plasticity Finite Element Method (CPFEM). The simulations show that the maximum Schmid factor (SF) value number equivalent initial slip system (EISS) play a principal role controlling magnitude internal stress within monocrystals. For bicrystal model, Goss C...

In this study, 2024 aluminum alloy was diffusion bonded to identify the effect of bonding temperature, applied pressure, and heating time on microstructure, hardness, strength. The shear strength increased from 62.5 MPa 81.2 along with rise in temperatures 440 °C 490 °C. rose an optimal value by extending 30 min 240 at a temperature constant pressure 5 MPa. addition, various post-weld heat trea...

Abstract The multifractal analysis (MFA) of the spatial microform area formed on surface steel C35 and aluminum alloy AA2024 at face milling was implemented. input information for MFA micro-images machined workpiece surface. Multifractal (MF) spectra their main parameters are calculated samples various cutting conditions. Renyi’s numbers fractal ordering were chosen as most informative MF descr...

Abstract An electrochemical cell was designed to enable in situ atomic force microscopy (AFM) measurements. The finite?element method implemented using COMSOL Multiphysics simulate the electrical field within and find current potential distribution. A comparative three?dimensional simulation study made compare two different designs elucidate importance of geometry on design optimized reduce unc...

Fatigue crack growth is decisive for the design of thin-walled structures such as fuselage shells air planes. The cold rolling process, used to produce aluminium sheets this structure made of, leads anisotropic mechanical properties. In contribution, we simulate fatigue with a phase-field model due its superior ability arbitrary paths. A variable based on Local Strain Approach describes progres...

A hyphenated optical-electrochemical technique and image analysis protocol is used to quantify global local (intermetallic) corrosion process kinetics. Our findings reveal an early stage (< 60 s) composition-dependent hierarchical activation of all IMs that can be attributed IM dealloying. This followed by trenching initiated at matrix locations adjacent regions the previously dealloyed, which ...