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Crystal Indentation Hardness [PDF]
Crystals, 2017 There is expanded interest in the long-standing subject of the hardness properties of materials. A major part of such interest is due to the advent of nanoindentation hardness testing systems which have made available orders of magnitude increases in ...
Ronald W. Armstrong +2 more
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What is indentation hardness? [PDF]
Surface and Coatings Technology, 2000 Using dimensional analysis and finite element calculations, we derive simple scaling relationships for loading and unloading curve, contact depth, and hardness. The relationship between hardness and the basic mechanical properties of solids, such as Young's modulus, initial yield strength, and work-hardening exponent, is then obtained.
Yang‐Tse Cheng, Che-Min Cheng
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On the Ball Indentation Hardness for Plastics
Bulletin of JSME, 1976 By applying the extended Meyer's law proposed by the author to the relation among the depth of indentation h, the initial load Po, the major load Pm and the diameter of steel ball D, the following equation was obtained analytically : [numerical formula]where A and n called Meyer's index are constants for the material and Pt=Po+Pm.
S. Yamashiro
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Assessment of the plasticity of dry granulated particles (mini-tablets) and its relationship to their tabletability [PDF]
International Journal of Pharmaceutics: XMini-tablets of different proportions of α-lactose monohydrate (LAC) and microcrystalline cellulose (MCC) were prepared by uniaxial compaction and served as surrogate granules.
Maryam Tofiq +3 more
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Indentation size effect and hardness of materials [PDF]
E3S Web of Conferences, 2023 In recent decades, the Indentation Size Effect (ISE), which manifests itself as a change in fixed hardness depending on indentation conditions, has become one of the most urgent problems of modern materials science.
Udalov A.V., Udalov A.A.
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Nanoindentation Response of Monocrystalline Copper via Molecular Dynamics: Anisotropic Edge Effects [PDF]
MicromachinesIn the nanoindentation testing of metallic materials, mechanical properties often decrease significantly when the indentation position shifts from the central region to the edge due to edge effects, leading to premature edge failure and potential device ...
Desong Du +4 more
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Spherical indentation of porous ceramics: Elasticity and hardness
Journal of the European Ceramic Society, 2016 AbstractA combined experimental and numerical approach is used to characterise the elastic and plastic deformation of a porous bulk ceramic material (La0.6Sr0.4Co0.2Fe0.8O3, LSCF) with porosities in the range 5–45vol%, undergoing spherical indentation. The Gurson model was used in FEM simulations to describe the densification of the porous material in ...
Zhangwei Chen +3 more
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An algorithm for indentation image classification and detection based on deep learning
Measurement: Sensors, 2021 In the measurement of hardness value, indentation is the key to obtain the hardness value. Traditional manual detection of indentation is inefficient, time-consuming and low accuracy.
Chen Shilin, Shi Wei
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Applied Sciences, 2023 The presence of residual stress seriously affects the mechanical performance and reliability of engineering components. Here, the authors propose a novel method to determine corresponding residual stress through micro-hardness measurements of machined ...
Gonghou Yao, Zhanqiang Liu, Haifeng Ma
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Materials Research Express, 2023 Although, surface roughness can influence the determination of elastic moduli and indentation hardness to some extent by instrumented spherical indentation test, limited work has been done to quantitatively reveal and minimize these influences.
Guangjian Peng +5 more
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