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Sample Dimensions Influence Strength and Crystal Plasticity
Abstract
When a crystal deforms plastically, phenomena such as dislocation storage, multiplication, motion, pinning, and nucleation occur over the submicron-to-nanometer scale. Here we report measurements of plastic yielding for single crystals of micrometer-sized dimensions for three different types of metals. We find that within the tests, the overall sample dimensions artificially limit the length scales available for plastic processes. The results show dramatic size effects at surprisingly large sample dimensions. These results emphasize that at the micrometer scale, one must define both the external geometry and internal structure to characterize the strength of a material.
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Citations
Cited by
Benedetti, M., du Plessis, A., Ritchie, R. O., Dallago, M., Razavi, N., & Berto, F. (2021) · Materials Science and Engineering: R: Reports · doi:10.1016/j.mser.2021.100606 · Cited by 788
Jang, D., & Greer, J. R. (2010) · Nature Materials · doi:10.1038/nmat2622 · Cited by 722
FIB damage of Cu and possible consequences for miniaturized mechanical tests
Kiener, D., Motz, C., Rester, M., Jenko, M., & Dehm, G. (2007) · Materials Science and Engineering: A · doi:10.1016/j.msea.2007.01.046 · Cited by 451
Plasticity in Confined Dimensions
Kraft, O., Gruber, P. A., Mönig, R., & Weygand, D. (2010) · Annual Review of Materials Research · doi:10.1146/annurev-matsci-082908-145409 · Cited by 429
AlMangour, B., & Yang, J.-M. (2016) · Materials & Design · doi:10.1016/j.matdes.2016.08.037 · Cited by 389
Metadata
- Authors
- Uchic, M. D., Dimiduk, D. M., Florando, J. N., & Nix, W. D.
- Venue
- Science
- Published
- 2004-08-13
- Volume
- 305
- Issue
- 5686
- Pages
- 986-989
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2090921914
- Cited by
- 2,330
- References
- 0
- FWCI
- 33.74
- Type
- journal article
- Language
- en
- Open access
- closed
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- Uchic, M. D., Dimiduk, D. M., Florando, J. N., & Nix, W. D. (2004). Sample Dimensions Influence Strength and Crystal Plasticity. Science. https://doi.org/10.1126/science.1098993
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