Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part I. Atomic force microscopy of a small indentation

S. Harvey; H. Huang; S. Venkataraman; W. W. Gerberich

doi:10.1557/JMR.1993.1291

Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part I. Atomic force microscopy of a small indentation

S. Harvey, H. Huang, S. Venkataraman, W. W. Gerberich

Chemical Engineering and Materials Science

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Abstract

Atomic force microscope measurements of elastic-plastic indentation into an Fe-3 wt. % Si single crystal showed that the volume displaced to the surface is nearly equal to the volume of the cavity. The surface displacement profiles and plastic zone size caused by a 69 nm penetration of a Vickers diamond tip are reasonably represented by an elastic-plastic continuum model. Invoking conservation of volume, estimates of the number of dislocations emanating from the free surface are reasonably consistent with the number of dislocations that have formed in the plastic zone to represent an average calculated plastic strain of 0.044.

Original language	English (US)
Pages (from-to)	1291-1299
Number of pages	9
Journal	Journal of Materials Research
Volume	8
Issue number	6
DOIs	https://doi.org/10.1557/JMR.1993.1291
State	Published - Jun 1993

Bibliographical note

Funding Information:
This research was supported by the Center for Interfacial Engineering at the University of Minnesota under Grant No. NSF/CDR-8721551. Support from the Corrosion Center of the University of Minnesota and the Department of Energy, Basic Energy Sciences, Materials Science Division, Grant DE-FG02-88Er45337A003 is gratefully acknowledged.

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title = "Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part I. Atomic force microscopy of a small indentation",

abstract = "Atomic force microscope measurements of elastic-plastic indentation into an Fe-3 wt. % Si single crystal showed that the volume displaced to the surface is nearly equal to the volume of the cavity. The surface displacement profiles and plastic zone size caused by a 69 nm penetration of a Vickers diamond tip are reasonably represented by an elastic-plastic continuum model. Invoking conservation of volume, estimates of the number of dislocations emanating from the free surface are reasonably consistent with the number of dislocations that have formed in the plastic zone to represent an average calculated plastic strain of 0.044.",

author = "S. Harvey and H. Huang and S. Venkataraman and Gerberich, {W. W.}",

note = "Funding Information: This research was supported by the Center for Interfacial Engineering at the University of Minnesota under Grant No. NSF/CDR-8721551. Support from the Corrosion Center of the University of Minnesota and the Department of Energy, Basic Energy Sciences, Materials Science Division, Grant DE-FG02-88Er45337A003 is gratefully acknowledged.",

year = "1993",

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doi = "10.1557/JMR.1993.1291",

language = "English (US)",

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T2 - Part I. Atomic force microscopy of a small indentation

AU - Harvey, S.

AU - Huang, H.

AU - Venkataraman, S.

AU - Gerberich, W. W.

N1 - Funding Information: This research was supported by the Center for Interfacial Engineering at the University of Minnesota under Grant No. NSF/CDR-8721551. Support from the Corrosion Center of the University of Minnesota and the Department of Energy, Basic Energy Sciences, Materials Science Division, Grant DE-FG02-88Er45337A003 is gratefully acknowledged.

PY - 1993/6

Y1 - 1993/6

N2 - Atomic force microscope measurements of elastic-plastic indentation into an Fe-3 wt. % Si single crystal showed that the volume displaced to the surface is nearly equal to the volume of the cavity. The surface displacement profiles and plastic zone size caused by a 69 nm penetration of a Vickers diamond tip are reasonably represented by an elastic-plastic continuum model. Invoking conservation of volume, estimates of the number of dislocations emanating from the free surface are reasonably consistent with the number of dislocations that have formed in the plastic zone to represent an average calculated plastic strain of 0.044.

AB - Atomic force microscope measurements of elastic-plastic indentation into an Fe-3 wt. % Si single crystal showed that the volume displaced to the surface is nearly equal to the volume of the cavity. The surface displacement profiles and plastic zone size caused by a 69 nm penetration of a Vickers diamond tip are reasonably represented by an elastic-plastic continuum model. Invoking conservation of volume, estimates of the number of dislocations emanating from the free surface are reasonably consistent with the number of dislocations that have formed in the plastic zone to represent an average calculated plastic strain of 0.044.

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Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part I. Atomic force microscopy of a small indentation

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