Peri Landau, Q. Guo, K. Hattar and J. R. Greer The Effect of He Implantation on the Tensile Properties and Microstructure of Cu/Fe Nano-Bicrystals Advanced Functional Materials 23
Nanotensile experiments on as-fabricated and helium-implanted 100 nm-diameter electroplated Cu/Fe bicrystals shed light on the role of individual interfaces in improving radiation tolerance and absorbing helium. Nanotensile experiments on samples irradiated with He bubbles reveal a yield and ultimate tensile strength 60% higher than for as-fabricated ones while retaining a comparable ductility. Failure always occurs gradually, along the interfaces, with no noticeable shape localization.
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