|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||A-16: The Effects of Porosity and Infiltrated Metal on the Corrosion Behavior and Tensile Strength of Binder Jet Printed Stainless Steel 420
||Luke Johnson, Holly J. Martin, Brett Conner
|On-Site Speaker (Planned)
The binder jetting process allows for the production of parts with minimal material usage, as it is an additive manufacturing technique that builds up material, instead of a subtractive method that removes material, and allows for very complex parts. Metal parts fabricated by binder jetting will be porous after the sintering step, which can then trap an electrolytic solution and lead to a higher corrosion rate. One way to change the porous attribute is to infiltrate the metal part with a different metal of a lower melting temperature, such as bronze that is wicked into the pores of the part, but galvanic corrosion could then develop, leading to an even higher corrosion rate of the part. The research presented here will compare the effects of porosity and bronze infiltration on the corrosion rate and tensile strength of 3-D printed stainless steel 420 as compared to standard stainless steel 420.
||Planned: A print-only volume