Effect of Powder Spheroidization on Select Properties of Additively Manufactured Stainless Steel

Midshipman Researcher(s): 1/C Jordan McLaughlin

Adviser(s): Professor Steve McHale, Professor Marshall Millett

Poster #57

Powder spheroidization of additively manufactured 316L stainless steel affects the microstructure of the sample. Powder spheroidization reshapes the irregular normal powder elements into regular, uniform spherical components, in order to achieve higher corrosion resistance and other beneficial material properties. The goal of this research is to compare the corrosion resistance and other material properties, to include strength, surface effects, and microstructure, in order to investigate the effects powder spheroidization has on AM stainless steels. Potentiodynamic testing, tensile strength testing, and SEM imaging found that the spheroidized powder had enhanced corrosion resistance at the cost of a slight decrease in strength.

Full Size Mechanical and Nuclear Engineering #57