Skip to main content Accessibility help
×
Home

Deformation Microstructure Under Nanoindentations in Cu Using 3D X-Ray Structural Microscopy

  • Wenge Yang (a1), B. C. Larson (a1), G. M. Pharr (a1) (a2), C. P. Lepienski (a3), G. E. Ice (a1), J. D. Budai (a1), J. Z. Tischler (a1) and Wenjun Liu (a1)...

Abstract

We have used a recently developed x-ray structural microscopy technique to make nondestructive, submicron-resolution measurements of the deformation microstructure below a 100mN maximum load Berkovich nanoindent in single crystal Cu. Direct observations of plastic deformation under the indent were obtained using a ∼0.5 μm polychromatic microbeam and diffracted beam depth profiling to make micron-resolution spatially-resolved x-ray Laue diffraction measurements. The local lattice rotations underneath the nanoindent were found to be heterogeneous in nature as revealed by geometrically necessary dislocation (GND) densities determined for positions along lines beneath a flat indent face and under the sharp Berkovich indent blade edges. Measurements of the local rotation-axes and misorientation-angles along these lines are discussed in terms of crystallographic slip systems.

Copyright

References

Hide All
[1] Hughes, D.A. and Hansen, N., Acta Mater., 45, 3871 (1997).
[2] Huang, Y., Xue, Z., Gao, H., Nix, W. and Xia, Z.C., J. Mater. Res., 15, 1786 (2000).
[3] Needleman, A., Acta Mater., 48, 105 (2000).
[4] Hughes, D.A., Chrzan, D.C., Liu, Q. and Hansen, N., Phys. Rev. Lett., 81, 4664, (1998).
[5] Thompson, J.B. et al., Nature, 414, 773 (2001).
[6] Lawn, B.R., Padture, N.P., Cai, H.D. and Guiberteau, F., Science, 263, 1114 (1994).
[7] Xue, Z., Huang, Y., Hwang, K.C. and Li, M., J. Eng. Mater. Tech., 124, 371 (2002).
[8] Ma, Q. and Clarke, D.R., J. Mater. Res., 10, 853 (1995).
[9] Swadener, J.G., George, E.P., Pharr, G.M., J. Mech Phys. Solids, 50, 681 (2002).
[10] Harvey, S., Huang, H., Venkataraman, S. and Gerberich, W.W., J. Mater. Res., 8, 1291 (1993).
[11] Bradby, J.E. et al., Appl. Phys. Lett., 77, 3749 (2000).
[12] Larson, B.C., Yang, W., Ice, G.E., Budai, J.D. and Tischler, J.Z., Nature, 415, 887 (2002).
[13] Ice, G.E. and Larson, B.C., Adv. Eng. Mat., 2, 643 (2000).
[14] Poulsen, H.F. et al., J. Appl. Cryst., 34, 751 (2001).
[15] Margulies, L., Winther, G., and Poulsen, H.F., Science, 292, 2392 (2001).
[16] Barabash, R., Ice, G.E., Larson, B.C., Pharr, G.M., Chung, K.-S., and Yang, W., Appl. Phys. Lett., 79, 4 (2001).
[17] Chiu, Y.L. and Ngan, A.H.W., Acta Mater., 50, 2677 (2002).

Deformation Microstructure Under Nanoindentations in Cu Using 3D X-Ray Structural Microscopy

  • Wenge Yang (a1), B. C. Larson (a1), G. M. Pharr (a1) (a2), C. P. Lepienski (a3), G. E. Ice (a1), J. D. Budai (a1), J. Z. Tischler (a1) and Wenjun Liu (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed