Metal matrix composites have been widely used in industries, especially aerospace industries, due to their excellent engineering properties. However, it is difficult to machine them because of the hardness and abrasive nature of reinforcement elements like silicon carbide particles (SiCp).In the present study, an attempt has been made to investigate the influence of spindle speed (N), feed rate...

Much work has been done, in recent years, to characterize the factors that cause porosity in aluminum castings, and to analyze the impact of porosity or microstructural parameters on fatigue life. What has yet to be done is systematically separate out the effects of dendrite arm spacing and largest pore size from each other, and from the underlying chemical and process parameters that influence...

The Charpy impact energy of A356 alloys has been measured. Instrumented Charpy impact tests have been conducted at 25, 100, 150, and 200 ~ The Charpy specimens were machined from plate castings or tapered cylindrical castings. The plates were produced in sand molds, and tapered cylinders were produced in water-cooled copper molds. Both unmodified and strontium-modified castings were tested. The...

The present study aims to investigate the microstructure and mechanical properties of A356 aluminum metal matrix composite reinforced with Y2O3 particles. is synthesized by adding 1 2 vol.% reinforcement via stir casting assisted ultrasonic treatment (UT). Microstructural contemplates show improvement in dispersion nano particles a decrease porosity level due ultrasound aided synthesis. UT refi...

AZ91D and 8.5vol.% SiCp/AZ91D magnesium matrix composites were fabricated by a semi-solid extruded processing method, treated with solution aging heat treatment. The effects of SiCp on the microstructures alloy during recrystallization studied observing analyzing microstructure evolution extrusions treatments. results show that addition inhibits dynamic extrusion only 26% volume fraction recrys...

The present article investigates the microstructure and mechanical properties of A356 matrix composite reinforced with TiB 2 particles synthesized by salt metal reaction as-cast T6 state. Microscopic observations prepared composites reveal that in-situ grown are characterized regular shapes nearly uniform distributed in matrix. A clear interface between was observed. detailed analysis state sho...