Abstract
The present paper reports the fabrication routes along with the recent development in the area of iron based metal matrix nanocomposites. A detailed discussion is done on iron (Fe) metal matrix nanocomposites reinforced with aluminum oxide (Al2O3) prepared using powder metallurgy (P/M) technique. Composites were prepared by sintering in an argon atmosphere in the temperature range of 900–1100°celsius for 1–3 h. Hardness test was conducted on a Rockwell Hardness Tester using 1/8” H scale steel ball indenter. Specimens were tested for wear and corrosion using pin on disc wear and friction testing machine and gamry electrochemical cell. With the addition of aluminum oxide the hardness number reached upto 79 HRH and the wear rate was found out to be as low as 0.3 mm3/Km. It was also revealed that with the addition of aluminum oxide, corrosion protection efficiency was 99.96% and cobalt doping further improved it to 99.99%.
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