Microstructure and Mechanical Properties of Nitrided and Chromized Short Steel Fiber Reinforced Aluminum Based P/M Composites
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.
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
S. Jain et al., "Microstructure and Mechanical Properties of Nitrided and Chromized Short Steel Fiber Reinforced Aluminum Based P/M Composites", Materials Science Forum, Vol. 690, pp. 335-338, 2011