Aluminum-based composites find its importance in the field of automobile and aerospace industries owing to their improved mechanical and microstructure properties are utilized for producing cylindrical components in LM6 alloy. Among all types of metal matrix composites (MMCs), considerable attention has been paid towards synthesis and characterization of aluminum matrix composites due to its li...

Results of internal friction measurements on the commercial aluminum-magnesium alloys 5052,5086 and 5486 are reported here over the temperature range 50 mK to 300 K, and compared with published data on alloy 5056. Effects of heat treatment and explosive bonds on the internal friction are evaluated. The quality factor of proposed multi-layer aluminum-alloy spherical resonant-mass detectors of gr...

Al-Zn-Mg-Cu alloys with a low Zn/Mg ratio have attracted considerable attention in recent years as result of an attractive property portfolio based on their ability age hardening via the precipitation T-Mg32(Al,Zn)49 phase and its precursors. In this study, quench rate sensitivity Al-Mg-Zn-Cu alloy is investigated compared to commercial reference (AA7075) showing high ratio. The impact five dif...

Al-Ti-B master alloys are widely used in the aluminum industry as grain refiners for the control of the microstructure of the aluminum alloys. The SHS (self-propagating high-temperature synthesis) is an ex situ method that uses exothermic reactions to sustain the chemical reaction in a combustion wave. The advantages of SHS are the low energy requirement, simplicity and product purity. However,...

Recent experiments have been conducted at NRL which were designed to evaluate the chemical reactivity of exploding conductor fuses and to relate the chemical process to fuse electrical performance. In these experiments, metallic fuses including aluminum wire and foils, lithium-aluminum alloy wire, and copper wire were vaporized in distilled water. Additionally, less precise tests were conducted...

The present study evaluates the process activation energy or thermal diffusion (TDAE) to understand aging kinetics transformation kinetics. AA7075–5 Vol.% of SiCp composite were fabricated through stir casting technique. Differential scanning calorimetry (DSC) was carried out at different heating rates precipitation sequence and evaluate composite. Rockwell hardness tests investigated behavior ...

Purpose: The main objective of this study was development of determination of phase fraction methodology in cast magnesium alloy containing aluminum and rare earth elements. Design/methodology/approach: The study was conducted on magnesium alloy containing 4 %wt. aluminum and 4 %wt. mixture of rare earth elements (mischmetal) in the as-cast condition. The mischmetal includes cerium, lanthanum, ...

The isothermal oxidation resistance of Al0.2Co1.5CrFeNi1.5Ti0.3 high-entropy alloy is analyzed and the microstructural evolution of the oxide layer is studied. The limited aluminum, about 3.6 at %, leads to the non-continuous alumina. The present alloy is insufficient for severe circumstances only due to chromium oxide that is 10 μm after 1173 K for 360 h. Thus, the aluminized high-entropy allo...

Overall fatigue strengths and hardness distributions of the aluminum alloy similar and dissimilar friction stir welding (FSW) joints were determined. The local fatigue strengths as well as local tensile strengths were also obtained by using small round bar specimens extracted from specific locations, such as the stir zone, heat affected zone, and base metal. It was found from the results that f...