This work reports on irradiation-induced creep (IIC) measured on nanolaminate (Cu-W and Ni-Ag) and nanocrystalline alloys (Cu-W) at room temperature using a combination of heavy ion irradiation and nanopillar compression performed concurrently in situ in a transmission electron microscope. Appreciable IIC is observed in multilayers with 50 nm layer thicknesses at high stress, ≈½ the yield strength, but not in multilayers with only 5 nm layer thicknesses.
Dillon, S. J., Bufford, D. C., Jawaharram, G. S., Liu, X., Lear, C., Hattar, K., & Averback, R. S. (2017). Irradiation-induced creep in metallic nanolaminates characterized by In situ TEM pillar nanocompression. Journal of Nuclear Materials, 490, 59–65. https://doi.org/10.1016/j.jnucmat.2017.04.008