Current metal additive manufacturing techniques can fabricate incredibly complex parts that would be impossible to make with traditional manufacturing processes. However, these additive manufacturing techniques offer limited control over microstructure, making it difficult to print high-performance components for the most demanding applications. We seek to overcome this limitation by developing new processes for fabricating net-shaped parts with precisely controlled structures that deliver specific desirable mechanical properties. To achieve this goal, we study the physics of materials processing and plastic deformation, with a view towards establishing quantitative processing-structure-property linkages for additively manufactured materials.

Some of our notable accomplishments include

  • elucidating the effects of ultrasonic welding on the structure and strength of nanocrystalline materials,
  • developing a technique for fabricating net-shaped interpenetrating phase composites, and
  • demonstrating a new approach for manipulating the location and orientation of grain boundaries in directionally solidified oligocrystals.

If these topics interest you, please visit the openings page to see how you can join the team.