Characterization of sintered irons made with swarfs from sintered parts machining
DOI:
https://doi.org/10.3989/revmetalm.2005.v41.i1.184Keywords:
sintered steels, Iron swarfs, high energy milling, powder metallurgyAbstract
The objective of the present work is the iron swarfs reusing as raw material to manufacture sintered parts. Particle size reduction using Horizontal attrition milling within iron dilution is the way used to get the raw materials. Two powder mixtures were obtained: Commercial Iron+50 % milled swarfs, and the milling mixture of iron+50 %swarfs. After powder characterization, the powder mixtures were die pressing and sintering at 1150 -C during 30min under N2-5 %H2 atmosphere. Density and dimensional change were determined on sintered materials. Also mechanical properties were obtained. Influence on properties from Microstructure and powder sinter ability were analyzed.
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