VIRTUAL

 

Thursday, July 15th    2021

3:45 – 4:45 p.m.

WEBEX

  

Speaker:  Dr. Hahn Choo

University of Tennessee 

“Metallurgy of Additive Manufacturing”

 

 

 

Abstract: 

Additive manufacturing (AM) process, with its unique capability of building complex engineering components, gained tremendous interests from automotive, aerospace, defense, and medical industries. Recent advances in process optimization and improvements in mechanical performance of AM parts significantly enhanced the potential for broad applications in load-bearing structural components made from titanium alloys, nickel-base superalloys, and steel alloys. In particular, powder bed fusion techniques, such as electron-beam melting or laser powder bed fusion processing, are studied extensively for the processing of metallic alloy systems.

This talk will provide an overview of current research on AM processing and the resulting microstructure and properties with a focus on the power-bed fusion processing of metallic alloy systems. Moreover, emerging research examples involving neutron and synchrotron x-ray diffraction and imaging techniques will be highlighted. Specific topics will include: laser-powder interaction, melt-pool dynamics, solidification kinetics, defect formation, microstructure and texture development, and mechanical properties of AM components.

 

Bio:

https://mse.utk.edu/people/hahn-choo/