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Sub-Micrometer Spatially Resolved Measurements of Mechanical Properties and Correlation to Microstructure and Composition

Published online by Cambridge University Press:  17 March 2011

M. Kunert ,
B. Baretzky ,
S. P. Baker  and
E. J. Mittemeijer
M. Kunert
Affiliation:
Max Planck Institute for Metals Research, Seestrasse 92, 70174 Stuttgart, Germany
B. Baretzky
Affiliation:
Max Planck Institute for Metals Research, Seestrasse 92, 70174 Stuttgart, Germany
S. P. Baker
Affiliation:
Cornell UniversityDepartment of Materials Science and Engineering, 129 Bard Hall, Ithaca, NY 14853-1501, USA
E. J. Mittemeijer
Affiliation:
Max Planck Institute for Metals Research, Seestrasse 92, 70174 Stuttgart, Germany
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Abstract

The variations of hardness, composition, and microstructure within a carbon implanted region – about 350 nm thick – of a Ti-6Al-4V alloy were measured using nanoindentation, Auger electron spectroscopy and transmission electron microscopy, respectively. Correlations among hardness, composition, and microstructure were made with a spatial resolution of about ±20 nm. The variation in hardness within the implanted regions was quantitatively explained as due to the formation of an almost continuous TiC layer and precipitate hardening. The problems that may arise in measuring and correlating spatial variations in such a complex material on this scale are outlined and a successful method to solve them is proposed. The need for highly spatially resolved measurement techniques is emphasized.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 649: Symposium Q – Fundamentals of Nanoindentation & Nanotribology II , 2000 , Q3.2
Copyright
Copyright © Materials Research Society 2001

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References

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