Austenitic stainless steels are widely used in medical, industrial as well as in domestic applications because of its outstanding mechanical properties and corrosion resistance. Attempts are being made to use stainless steel powder in order to achieve dimensional accuracy for near net-shape part fabrication, increased productivity, to overcome loss of material and minimize energy consumption. Use of stainless steel in powder form poses certain disadvantages mainly because of the poor densification and increased porosity of the sintered compacts which limit the use of PM stainless steel for certain applications. This paper presents a brief assessment of the various factors influencing the microstructure and porosity of PM 316L austenitic stainless steel.
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