Results 21 to 30 of about 44,372 (332)
Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests [PDF]
, 2010 We evaluate Vickers hardness and true instrumented indentation test (IIT) hardness of 24 metals over a wide range of mechanical properties using just IIT parameters by taking into account the real contact morphology beneath the Vickers indenter ...
Bulychev +6 more
core +1 more source
Effect of Heavy Ion Irradiation Dosage on the Hardness of SA508-IV Reactor Pressure Vessel Steel
Metals, 2017 Specimens of the SA508-IV reactor pressure vessel (RPV) steel, containing 3.26 wt. % Ni and just 0.041 wt. % Cu, were irradiated at 290 °C to different displacement per atom (dpa) with 3.5 MeV Fe ions (Fe2+).
Xue Bai +4 more
doaj +1 more source
Exfoliated Graphite Reinforced PMMA Composite: A Study on Nanoindentation and Scratch Behavior
Journal of Nanotechnology, 2012 The present work aims to compare the scratch hardness (Hs) with the indentation hardness (HIT) obtained from nanoindentation measurements of exfoliated graphite/poly (methyl methacrylate) (EG/PMMA) composites. EG/PMMA composites with thickness 50 μm each
Himel Chakraborty +3 more
doaj +1 more source
Nano and Micro indentation studies of bulk zirconia and EB PVD TBCs [PDF]
, 2004 In order to model the erosion of a material it is necessary to know the material properties of both the impacting particles as well as the target. In the case of electron beam (EB) physical vapour deposited(PVD) thermal barrier coatings (TBCs) the ...
Dyer, A. +2 more
core +1 more source
Case Studies in Construction Materials, 2022 Nano indentation has become an important means to study the mechanical properties of rock because of its nondestructive and high efficiency. In this work, the Weibull distribution function is used to statistically analyze the nanoindentation test results
Shankun Zhao +7 more
doaj +1 more source
Features of Measuring the Hardness of a Metal Surface Modified with Ultrafine Particles of Minerals
Приборы и методы измерений, 2020 One of the important characteristics of the surface properties of metal parts subjected to friction is hardness. Hardness measurements are important for determining the operational characteristics of parts and monitoring the technological regimes of ...
A. V. Skazochkin +2 more
doaj +1 more source
Indenter Tip Radius and Micro-Indentation Hardness [PDF]
, 2007 Using finite element method with the conventional J 2 theory and strain gradient theory respectively, the effect of the indenter tip radius on the micro-indentation hardness is investigated in the present paper. It is found that the former can not predict the size effect even considering the indenter tip radius, while the latter gives a good agreement ...
X. Y. Feng +3 more
openaire +2 more sources
Assessment of crystallographic influence on material properties of calcite brachiopods [PDF]
, 2008 Calcium carbonate biominerals are frequently analysed in materials science due to their abundance, diversity and unique material properties. Aragonite nacre is intensively studied, but less information is available about the material properties of ...
A. Pérez-Huerta +3 more
core +1 more source
The mechanical properties of shale based on micro-indentation test
Petroleum Exploration and Development, 2015 In view of the difficulty to get mechanical characteristics of shale reservoirs, a quantitative evaluation method based on micro-indentation test technology was proposed to research the meso-mechanical properties of shale.
Ping CHEN +3 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
core +5 more sources