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Vickers hardness prediction from machine learning methods [PDF]

open access: yesScientific Reports, 2022
The search for new superhard materials is of great interest for extreme industrial applications. However, the theoretical prediction of hardness is still a challenge for the scientific community, given the difficulty of modeling plastic behavior of ...
Viviana Dovale-Farelo   +4 more
doaj   +5 more sources

Automatic Method for Vickers Hardness Estimation by Image Processing [PDF]

open access: goldJournal of Imaging, 2022
Hardness is one of the most important mechanical properties of materials, since it is used to estimate their quality and to determine their suitability for a particular application. One method of determining quality is the Vickers hardness test, in which
Jonatan D. Polanco   +4 more
doaj   +5 more sources

The influence of different storage media on Vickers hardness and surface roughness of CAD/CAM resin composites [PDF]

open access: yesJournal of Materials Science: Materials in Medicine, 2023
Introduction This study examined Vickers hardness as well as surface characteristics of different computer-aided design/computer-aided manufacturing (CAD/CAM) resin composites prior to and after storage in various media.
Florian Fuchs   +3 more
doaj   +3 more sources

Leveraging Deep Neural Networks for Estimating Vickers Hardness from Nanoindentation Hardness. [PDF]

open access: yesMaterials (Basel), 2023
This research presents a comprehensive analysis of deep neural network models (DNNs) for the precise prediction of Vickers hardness (HV) in nitrided and carburized M50NiL steel samples, with hardness values spanning from 400 to 1000 HV.
Niu J   +7 more
europepmc   +2 more sources

Vickers Hardness Value Test via Multi-Task Learning Convolutional Neural Networks and Image Augmentation

open access: yesApplied Sciences, 2022
Hardness testing is an essential test in the metal manufacturing industry, and Vickers hardness is one of the most widely used hardness measurements today.
Wan-Shu Cheng   +5 more
doaj   +2 more sources

Vickers Hardness and Shrinkage Stress Evaluation of Low and High Viscosity Bulk-Fill Resin Composite. [PDF]

open access: yesPolymers (Basel), 2020
The aim of this in vitro study was to evaluate the hardness and shrinkage stress (SS) of six bulk-fill resin composites. To evaluate microhardness (MH), ten 6 mm specimens were prepared using a metal mold for each selected bulk-fill resin composite and ...
Comba A   +6 more
europepmc   +2 more sources

Enhancing the Vickers hardness, melting point and thermodynamic properties of hafnium dodecaboride. [PDF]

open access: yesRSC Adv, 2019
Although HfB12 is a promising surperhard material because of the boron cuboctahedron cage, the Vickers hardness of HfB12 remains controversial. We apply first-principles calculations to investigate the influence of a transition metal on the structural ...
Pan Y, Pan Y, Chen S, Jia Y.
europepmc   +2 more sources

Chemical analysis and Vickers hardness of orthodontic mini-implants

open access: greenBrazilian Journal of Oral Sciences, 2015
Orthodontic mini-implants are used in clinical practice to provide efficient and aesthetically-pleasing anchorage. Aim: To evaluate the hardness (Vickers hardness) and chemical composition of miniimplant titanium alloys from five commercial brands ...
Christiane Cavalcante Feitoza   +5 more
doaj   +3 more sources

Vickers Hardness Mechanical Models and Thermoplastic Polymer Injection-Molded Products’ Static Friction Coefficients

open access: yesJournal of Manufacturing and Materials Processing
The surface mechanical properties of thermoplastics are crucially important for evaluating molded products’ vulnerability to scratching. Because surface mechanical properties reflect material performance directly in terms of durability and frictional ...
Tetsuo Takayama
doaj   +2 more sources

Experimental analysis and modeling of micro-texture and vickers hardness impact on polished stone value in high-friction aggregates [PDF]

open access: goldFrontiers in Materials
This article intends to study the influence of micro-texture and Vickers hardness on the Polished Stone Value (PSV) of four types of high friction aggregates (90# Bauxite, 75# Bauxite, Basalt, and Granite) during the long-term polishing process. For this
Zhenqing He   +3 more
doaj   +2 more sources

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