@article {1396,
	title = {Creep resistance of bulk copper{\textendash}niobium composites: An inverse effect of multilayer length scale},
	journal = {Acta Materialia},
	volume = {176},
	year = {2019},
	pages = {189{\textendash}198},
	abstract = {<p>
	Metallic multilayer systems show promising performance in extreme environments, with high stability of bi-metal interfaces down to nanometer length scales. The creep behavior of bulk, accumulative roll bonded (ARB) Copper\&ndash;Niobium (Cu\&ndash;Nb) composites has been studied at 400 \&deg;C as a function of layer thickness, ranging from 2 \&mu;m to 65 nm. Similar to single phase metallic systems, three regimes are observed during creep: transient, steady-state and tertiary. The mechanism controlling minimum creep rate for all conditions tested has a strong dependence on stress, consistent with dislocation-dominated creep. Unlike the conventional effect of grain size on creep resistance, this study reveals that decreasing length scale increases creep resistance.
</p>
},
	keywords = {Creep, Cu-Nb, Length scale, Multilayer},
	issn = {13596454},
	doi = {10.1016/j.actamat.2019.06.029},
	url = {https://doi.org/10.1016/j.actamat.2019.06.029},
	author = {Avallone, Jaclyn T. and Nizolek, Thomas J. and Bales, Benjamin B. and Pollock, Tresa M.}
}
