Results 31 to 40 of about 12,577,788 (269)
Journal of Manufacturing and Materials Processing, 2021 In this study, depth-sensing indentation creep response of cast and additively manufactured (laser powder bed fusion) NiTi alloys in heat-treated conditions have been investigated at ambient temperature.
Md. Minhazul Islam +5 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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Study on Size Effect in Indentation Tests
Coatings, 2022 The depth dependence of the indentation hardness, i.e., the indentation size effect (ISE), was manifested as an increase or decrease in hardness when penetration depth decreases, which was observed by previous experiments. Most scholars believe it is generated by strain gradient.
Xiaozhen Li +5 more
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, 2021 In the present work, effects of phase constitution on the tribological properties of FeCoNi(Bx Al1-x)0.1Si0.1 high-entropy alloy (HEA), where x = 0, 0,4, 0.7 and 1.0 are denoted as B0, B0.4, B0.7 and B1.0, respectively, were investigated.
Sulaiman, Mohd Hafis +2 more
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Size Effect and Geometrical Effect of Polycrystals and Thin Film/Substrate System in Micro-indentation Test [PDF]
, 2002 Micro-indentation test at scales on the order of sub-micron has shown that the measured hardness increases strongly with decreasing indent depth or indent size, which is frequently referred to as the size effect.
Wang XZ(王学峥) +2 more
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Effect of Indenter Size on the Cracking Mechanism of Ceramic Film Indentation.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 2001 Cracking is studied for a ceramic film coating (Al2O3) on a metal substrate (WC-Co) subjected to indentation by a spherical diamond indenter. The focus of the study is the pattern of crack growth and apparent variation of strength of the film with respect to size of indenters.
HAYASHI, Kazuo, TSUJITA, Masao
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Low velocity impact modeling in composite laminates capturing permanent indentation [PDF]
, 2012 This paper deals with impact damage and permanent indentation modeling. A numerical model has been elaborated in order to simulate the different impact damage types developing during low velocity/low energy impact.
Barrau, Jean-Jacques +2 more
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Depth-sensing indentation tests in studying plastic instabilities [PDF]
, 2004 This review surveys the phenomenon of plastic instabilities occurring in depth-sensing indentation measurements. Investigations presented focus on the characterization of Portevin-Le Chatelier type instabilities observed in different metal alloys during ...
Gubicza, Jenő +7 more
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An explanation of the indentation size effect in ceramics
Philosophical Magazine Letters, 1989 Abstract A quantitative model is proposed to explain the indentation size effect (ISE) often observed in the hardness response of hard brittle materials, namely that hardness is observed to increase with decreasing indentation size. The model is based on a mixed elastic/plastic materials deformation response whereby plastic deformation occurs in a ...
S. J. Bull, T. F. Page, E. H. Yoffe
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Permanent indentation characterization for low-velocity impact modelling using three-point bending test [PDF]
, 2014 This paper deals with the origin of permanent indentation in composite laminates subjected to low-velocity impact. The three-point bending test is used to exhibit a non-closure of matrix crack which is assumed as a cause of permanent indentation ...
Bouvet, Christophe +3 more
core +1 more source