Date and Time
Location
Speaker: Dr. Wendy Gu
Program Description
The development of hydrogen resistant alloys is critical to the nuclear and oil and gas industries. Hydrogen is known to degrade the mechanical properties of many steels and superalloys, but the underlying mechanisms are challenging to understand because of the dynamic processes, and wide range of length and time scales that are involved. Here, I describe our development of in-situ techniques for studying hydrogen embrittlement using synchrotron transmission X-ray microscopy (TXM) and Kelvin Probe Force Microscopy (KPFM). We find that mechanical strain leads to hydrogen segregation to high angle grain boundaries, which become the sites where fracture occurs.
Location
Zoom: https://stanford.zoom.us/j/97957835666?pwd=p9x2RpA6BHX5gTHdNU6aq0k21UphEI.1
Password: 512580
Links
Poster
