Licensing Opportunity Contact Form
Submission of this form should not be interpreted as an offer to license technology. All licenses are subject to negotiation and availablility of the intellectual property for licensing. This form is intended for indications of interest only.
To initiate a Rapid Technology Deployment (RTD) license, complete and return the following forms to
RTD License Agreement
RTD Participant Data Sheet (PDS)
Email submission of completed documents, in addition to your inquiry, will expedite your licensing request.
If you are interested in IP that is not part of the RTD program, someone from the licensing team will reach out to discuss your interest.

To address the current national emergency, U.S. entities may be eligible to license select Sandia intellectual property at no cost for a limited time. Learn more.

Search/Browse Tech

Rapid Electropulsing Method


A rapid electropulsing method to reduce chemical microsegregation in metallic additively manufactured (AM) parts comparable to conventional heat-treatment techniques in a fraction of the processing time


For many applications, the promise of rapid development and fabrication through the additive manufacture (AM) of ready-to-use, geometrically complex parts cannot be realized due to cumbersome thermal post-processing. While AM methods allow for the fabrication of near-net-shape parts, the rapid cooling of each material layer produces microstructures with undesirable features such as chemical microsegregation, residual stresses, and/or equiaxed grains with random textures. Post-build heat treatments are typically used to address these effects; however, thermally treating metallic AM parts has significant downsides such as part distortion, damage, and increased processing times. Sandia researchers have developed a rapid method to reduce chemical microsegregation in metallic AM parts comparable to conventional heat-treatment techniques in a fraction of the processing time using short, high-current density electrical pulses (electropulsing). Electrical pulses were passed through 316L stainless steel and aluminum silicon magnesium (AlSiMg) parts fabricated by SLM using a Gleeble® 3500. For stainless steel parts, electropulsing significantly reduced the chemical microsegregation in the as-fabricated part after 10 pulses without significantly altering hardness. Total processing time for this material was 200 seconds, compared conventional heat treatment at 800° C for 2 hours with reduced part hardness. For aluminum, 100 pulses at a current density of 1.68 kA/mm2 were applied to the part for a total processing time of 1,000 seconds, producing three times greater ductility in the electropulsed part in the as-fabricated condition.


  • 10x faster processing of stainless steel SLM parts with similar results as conventional heat-treatment
  • Enables target modification of a small area, rather than the entire part
  • Improved efficiency and throughput

Applications and Industries

  • Automotive
  • Aerospace
  • Rapid prototyping
  • Additive manufacturing (AM)
Technology IDSD# 15154Development StagePrototype - TRL 4AvailabilityAvailablePublished02/24/2020Last Updated02/24/2020