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Incipient plasticity during nanoindentation at elevated temperatures
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10.1063/1.1784891
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    Affiliations:
    1 Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
    2 Materials Science and Technology Division, Lawrence Livermore National Laboratory, Livermore, California 94550
    3 Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
    a) Author to whom correspondence should be addressed; electronic mail: schuh@mit.edu
    Appl. Phys. Lett. 85, 1362 (2004); http://dx.doi.org/10.1063/1.1784891
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Figures

Image of FIG. 1.
FIG. 1.

Typical load-displacement curves measured at 20, 100, and , with their origins offset for clarity of presentation. The loading portion of each curve is shown in black, and the unloading portion in grey. As temperature is raised, there is a pronounced increase in the prominence of the horizontal “pop-ins” in the loading part of the experiments.

Image of FIG. 2.
FIG. 2.

Initial nanoindentation response of (100) Pt at three different temperatures. In each case, the first portion of the experimental data (black points) can be well described by the Hertzian elastic contact law (grey lines), but the departure from ideal elasticity occurs earlier for specimens at higher temperatures.

Image of FIG. 3.
FIG. 3.

(Color online). Cumulative fraction of pop-in events of a given size, incorporating data from many indentations under the same conditions; the axis is logarithmic to better observe trends. The tendency for displacement bursts of every size increases monotonically with temperature.

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/content/aip/journal/apl/85/8/10.1063/1.1784891
2004-08-17
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Incipient plasticity during nanoindentation at elevated temperatures
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/8/10.1063/1.1784891
10.1063/1.1784891
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