Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part II. TEM of the indentation plastic zone

W. Zielinski; H. Huang; W. W. Gerberich

doi:10.1557/JMR.1993.1300

Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part II. TEM of the indentation plastic zone

W. Zielinski, H. Huang, W. W. Gerberich

Chemical Engineering and Materials Science

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Abstract

Direct observations of dislocation arrangements about a range of microindentations into the [100] face of an Fe-3 wt. % Si single crystal have been accomplished. Dislocations of both large loop character initiated from the indenter and small loop character initiated as secondary reactions are found. Analysis of these allows the various contributions to the plastic strain gradient around the indentation to be assessed, with the experimental observations being reasonably consistent with continuum models.

Original language	English (US)
Pages (from-to)	1300-1310
Number of pages	11
Journal	Journal of Materials Research
Volume	8
Issue number	6
DOIs	https://doi.org/10.1557/JMR.1993.1300
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

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AB - Direct observations of dislocation arrangements about a range of microindentations into the [100] face of an Fe-3 wt. % Si single crystal have been accomplished. Dislocations of both large loop character initiated from the indenter and small loop character initiated as secondary reactions are found. Analysis of these allows the various contributions to the plastic strain gradient around the indentation to be assessed, with the experimental observations being reasonably consistent with continuum models.

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Microscopy and microindentation mechanics of single crystal Fe-3 wt. % Si: Part II. TEM of the indentation plastic zone

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