At MS&T 2015 (Columbus, OH), Seok-Woo gave a talk entitled “Size effect suppresses brittle failure in hollow Cu60Zr40 metallic glass nanolattices deformed at cryogenic temperature” on 10/7/2015.

Tyler Flanagan (MSE PhD candidate) joined our group! Welcome to join us! He will work on namo-mechanical characterization of metal powders for cold spray application. This work is supported by Army Research Laboratory.

Our research is featured in the MSE website. Here is the link.

Seok-Woo received Teaching Excellence Award for MSE 3004 “Mechanical Behavior of Materials” [Teaching Excellence Letter].

Seok-Woo’s article entitled “Size Effect Suppresses Brittle Failure in Hollow Cu60Zr40 Metallic Glass Nanolattices Deformed at Cryogenic Temperatures” was published at Nano Letters [Link].

[Abstract]

To harness “ smaller is more ductile” behavior emergent at nanoscale and to proliferate it onto materials with macroscale dimensions, we produced hollow-tube Cu60 Zr40 metallic glass nanolattices with the layer thicknesses of 120, 60, and 20 nm. They exhibit unique transitions in deformation mode with tube-wall thickness and temperature. Molecular dynamics simulations and analytical models were used to interpret these unique transitions in terms of size eff ects on the plasticity of metallic glasses and elastic instability.

 

We had a group lunch at the Nathan Hale Inn Restaurant on Aug. 11, 2015. I really appreciate your hard works during this summer semester. Also, we wish that Andrew has a great time in Germany for the next one year.

  

The first conference presentations from Lee’s research group!

Keith gave a poster presentation entitled “Novel Cu-base nanostructured alloys with enhanced strength and ductility”, and John gave a poster presentation entitled “Mechanical properties of Y-Cu nanostructured composites”. This was a great opportunity to meet people and learn the frontier in physical metallurgy. Great jobs!

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