Pile-Up Correction of Mechanical Characteristics of Individual Phases in Various Steel by Depth Sensing Indentation

Peter Burik; Ladislav Pešek; Lukáš Voleský

doi:10.4028/www.scientific.net/KEM.662.7

Paper Titles

Preface, Committees and Sponsors

Residual Stresses and Energies in Elastic-Plastic Materials after Concentrated Contact
p.3

Pile-Up Correction of Mechanical Characteristics of Individual Phases in Various Steel by Depth Sensing Indentation
p.7

Anisotropic Mechanical Properties of Pure Magnesium Analyzed by In Situ Nanoindentation
p.11

Local Mechanical Properties of Cu-Co Alloys with Coherent Co Precipitates
p.15

Nanoindentation in Metallic Glasses with Different Plasticity
p.19

Nanoindentation Study of the Influence of the Loading Rate on the Deformation of Metallic Glasses
p.23

Relationship between Indenter Calibration and Measured Mechanical Properties of Elastic-Plastic Materials
p.27

Investigation of Indentation Parameters Near the Interface between Two Materials
p.31

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Pile-Up Correction of Mechanical Characteristics of Individual Phases in Various Steel by Depth Sensing Indentation

Abstract:

The Oliver–Pharr method has extensively been adopted for measuring hardness and elastic modulus by indentation techniques. However, the method assumes that the contact periphery sinks in, which limits the applicability to the materials pile-up [1]. This study proposes an improved methodology to calculate the real mechanical characteristics of individual phases in various steels with significant pile-up. Pile-up correction of mechanical characteristics is based on ratio of pile-up height and contact depth. Pile-up height was measured by atomic force microscopy (AFM). The effect of grain boundaries on the shape and size of the pile-up lobes was also discussed.

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Periodical:

Key Engineering Materials (Volume 662)

Pages:

7-10

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.662.7

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Online since:

September 2015

Authors:

Peter Burik*, Ladislav Pešek, Lukáš Voleský

Keywords:

Atomic Force Microscopy, Berkovich Diamond Indenter, Hardness, Pile-Up, Steel Sheets, Young’s Modulus

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