Processing and mechanical behavior of nanocrystalline Fe
Nanocrystalline Fe samples have been produced by inert gas condensation and warm compaction with a new consolidation device. The new consolidation device was designed and built to reduce the processing defect population inherent in samples produced in an earlier device and to minimize contamination. The Vickers microhardness of nanocrystalline Fe, while still strongly dependent upon porosity, is 3 to 7 times the microhardness of coarse-grained Fe.