Here is information about a new alloy, PSF27, and production technique:
http://sb-specialty-metals.com/grades/psf27
SB Specialty Metals LLC
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Spray forming is a technique which is similar to PM in that basically it reduces the effective ingot size and thus reduces carbide segregation and promotes a finer aus-grain. It however does not achieve the same level as PM but isn't intended to. It is intended to basically be a mid way technique between conventional ingot steels and PM, i.e., if you could not afford PM but had a bit more money than what is needed for ingot steels you could go with spray forming.
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