Microstructure and Mechanical Properties of Nitrided and Chromized Short Steel Fiber Reinforced Aluminum Based P/M Composites

Abstract:

The present investigation is on the microstructure evolution and hardness of powder metallurgically processed Al- 0.5 wt.%Mg base 10 wt.% short steel fiber reinforced composites. The 0.38 wt.% C short steel fibers of average diameter 50μm and 500-800μm length were nitrided and chromized in a fluid bed furnace. Nitriding was carried out at 525°C for 90, 30 and 5 min durations. Chromizing was performed at 950°C for 53 and 7 min durations, using thermal reactive deposition (TRD) and diffusion technique. The treated fibers and resulting reaction interfaces were characterized using metallographic, microhardness and XRD techniques.

• Periodical: Materials Science Forum (Volume 690)
• Pages: 335-338
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.690.335
• Online since: June 2011
• Authors: Sidharth Jain, Daniel M. Fabijanic, Kamlesh Chandra, Vijaya Agarwala
• Keywords: Chromizing, Compound Layer, Hardness, Metal Matrix Composites Nitriding, Powder metallurgy, Reaction Interface, Sintering

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