Rapid prototyping using the selective laser melting process has been successfully used in the manufacture of solid walls from melt sensitive mechanically alloyed PM2000 FeCrAl ODS powder. Despite melting of the powder, the technique allowed the retention of the nanoscale oxide dispersion due to the high cooling rates. Results showed that coarsening and agglomeration of ODS particles was more dependent on laser scan speed than the maximum laser power.
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Walker et al. (2009) studied this question.
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