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PLASTICITY CHARACTERISTICS OBTAINED THROUGH INSTRUMENTAL INDENTATION

Published online by Cambridge University Press:  01 February 2011

Yuliy Milman ,
Sergey Dub  and
Alex Golubenko
Yuliy Milman
Affiliation:
milman@ipms.kiev.ua, Institute for Problems of Material Science, Physics of High-Strength and Metastable Alloys, 3, Krzhizhanovski Str., Kiev, 03142, Ukraine, 38(044) 424-31-84, 38(044) 424-30-61
Sergey Dub
Affiliation:
lz@ism.kiev.ua, Institute for Superhard Materials, Mechanical Properties of Superhard Materials, 2, Avtozavodskaya Str., Kiev, 04074, Ukraine
Alex Golubenko
Affiliation:
aleksey@ipms.kiev.ua, Institute for Problems of Material Science, Physics of High-Strength and Metastable Alloys, 3, Krzhizhanovski Str., Kiev, 03142, Ukraine
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Abstract

The nanohardness and microhardness testing of crystalline materials with different types of interatomic bonds and different crystal structures was performed with Berkovich indenter.

The plasticity characteristics for crystalline materials with different types of interatomic bonds and different crystalline structures were determined by microindentation and by nanoindentation. The relation between these characteristics and parameters of material (Meyer hardness, Young's modulus and Poisson's ratio) was assigned. Plasticity characteristic may be used for characterization of mechanical behavior of materials which are brittle at standard mechanical tests and for coatings.

Keywords

hardnesscoatingnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1049: Symposium AA – Fundamentals of Nanoindentation and Nanotribology IV , 2007 , 1049-AA05-06
Copyright
Copyright © Materials Research Society 2008

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