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Indentation Size Effect of Composite A356 + 6%FA Subjected to ECAP
Metals, 2022 In this study, metal matrix-based composite (MMC) was subjected to Equal Chanel Angular Pressing (ECAP) in several passes to determine the influence of deformation on the hardness of the samples. Composite based on A356 aluminum alloy and reinforced with
Merima Muslić +3 more
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Analysis of indentation size effect in copper and its alloys [PDF]
, 2013 For describing the indentation size effect (ISE), numerous models, which relate the load or hardness to the indent dimensions, have been proposed. Unfortunately, it is still difficult to associate the different parameters involved in such relationships ...
CHICOT, Didier +6 more
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On the indentation size effect in spherical indentation
Philosophical Magazine, 2006 Size effects in plasticity at small length scales have been widely reported in a variety of loading situations. The hardness size effect has often been cited as an archetypal example. The indentation size effect was clearly demonstrated by Lim and Chaudhri (1999) in spherical indentation experiments on Copper and subsequently in experiments on Iridium ...
Spary, Ian +2 more
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The Correlation of Indentation Size Effect Experiments with Pyramidal and Spherical Indenters [PDF]
MRS Proceedings, 2001 ABSTRACTExperiments were conducted in annealed iridium using pyramidal and spherical indenters over a wide range of load. For a Berkovich pyramidal indenter, the hardness increased with decreasing depth of penetration. However, for spherical indenters, hardness increased with decreasing sphere radius.
Swadener, J. G. (John G.) +2 more
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Journal of the Mechanical Behavior of Materials, 2016 The so-called indentation size effect (ISE) observed mainly in nanoindentation measurements with prismatic tips, is theoretically modeled in this article with the use of gradient theory. It is shown that the ISE, i.e.
Kampouris Asterios K. +1 more
doaj +1 more source
Effective indenter radius and frame compliance in instrumented indentation testing using a spherical indenter [PDF]
, 2009 We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter.
Kang, Ingeun +3 more
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A gradient elasticity approach to the indentation size effect at very small depths
Journal of the Mechanical Behavior of Materials, 2011 Over the past two decades, the indentation size effect (ISE) has been studied extensively by several authors. A common point among all these studies has been the premise that during the indentation process sufficient plastic deformation is developed so ...
Mokios George P., Aifantis Elias C.
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Investigation of the mechanism of the indentation size effect for titanium
Mechanical Engineering Journal, 2019 In this study, we investigated the mechanism of the indentation size effect for Ti, whose crystal structure is hexagonal close-packed. Indentation tests were performed for two types of single-crystal Ti with different crystal orientations: (0001) and ...
Shota HASUNUMA +2 more
doaj +1 more source
Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]
, 2010 Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo, +7 more
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Mechanical Engineering Journal, 2018 In this study, we investigated the mechanism of the indentation size effect based on measurement of the geometrically necessary (GN) dislocation density. The GN dislocation density was measured around impressions by electron backscatter diffraction (EBSD)
Shota HASUNUMA +3 more
doaj +1 more source