Predicting Materials that Retain Nanoscale Grains at High Temperature (IMAGE)

North Carolina State University

Predicting Materials that Retain Nanoscale Grains at High Temperature

Caption

The model correctly predicted the material on the left would not be stable at high temperatures and that the material on the right would retain its nanoscale grain size. The material on the left is Fe-8Ni-4Zr, meaning it is an iron-base alloy with 8 atomic percent nickel and 4 atomic percent zirconium. The grains grew to micron size at 900C. The material on the right is Fe-10Cr-4Zr, meaning it is an iron-base alloy with 10 atomic percent chromium and 4 atomic percent zirconium. This material retained nanoscale grains at 900C.

Credit

Mostafa Saber, North Carolina State University

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