THE INFLUENCE OF STRAIN RATE ON MICROSTRUCTURE AND MECHANICAL BEHAVIOR OF P/M FEAL
DOI:
https://doi.org/10.7494/mafe.2008.34.1.133Keywords:
FeAl alloys, microstructural evolution, mechanical behavior, strain rate, powder metallurgyAbstract
As part of a broader study of the thermomechanical processing of P/M FeAl alloys, this research is focused on the influence of processing strain rate on the microstructural evolution and mechanical behavior of the processed materials. For the purposes of this study, water atomized FeAl powder was consolidated by hot pressing resulting in fully dense products. The consolidated P/M samples were thermomechanically processed in compression at 800 and 900oC at strain rates of 0.1 s-1 and 10 s-1, to a true strain of 1. The influence of thermomechanical processing parameters on the material flow and microstructural development of investigated alloy was analyzed. Considerable strain rate sensitivity of investigated alloy was observed, specially with reference to microstructural development.
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