Results 21 to 30 of about 7,567 (164)

Penetration Resistance and Penetrability in Pyramidal (Nano)Indentations [PDF]

open access: yesScanning, 2012
SummaryPyramidal nanoindentation loading curves were linearly plotted, normal force versus (penetration depth)3/2. The slope is penetration resistance k, its inverse penetrability. Linear correlations verify. All contributions to the indentation are included in the penetrability.
Gerd, Kaupp, Mohammad Reza, Naimi-Jamal
openaire   +2 more sources

Microstructure, macro-, and nano-hardness assessment of AISI 302 steel aged at 1000°C [PDF]

open access: yesE3S Web of Conferences, 2023
Changes in the microstructure of the AISI 302 steel must be analyzed in order to optimize its mechanical performance. In this paper, we studied the thermal aging behavior of the AISI 302 steel.
Ben Lenda Omar   +4 more
doaj   +1 more source

Experimental study and crystal plasticity finite element simulations of nano-indentation-induced lattice rotation and the underlying mechanism in TC6 single α-grain

open access: yesMaterials & Design, 2020
A Berkovich indentation test was performed in a single primary α-phase grain of an equiaxed TC6 titanium alloy, to reveal the complex local lattice-rotation process under nano-indentation loading. Numerical simulations using an in-house-developed crystal
Yu Zhou   +4 more
doaj   +1 more source

Orientation dependence of the nano-indentation behaviour of pure Tungsten [PDF]

open access: yesScripta Materialia, 2020
Coupling of nano-indentation and crystal plasticity finite element (CPFE) simulations is widely used to quantitatively probe the small-scale mechanical behaviour of materials. Earlier studies showed that CPFE can successfully reproduce the load-displacement curves and surface morphology for different crystal orientations.
Yu, H   +5 more
openaire   +3 more sources

Effect of Structural Relaxation on the Indentation Size Effect and Deformation Behavior of Cu–Zr–Based Nanoglasses

open access: yesFrontiers in Materials, 2021
In this work, the deformation behavior of as-prepared (AP) and structurally relaxed (SR) Cu–Zr–based nanoglasses (NGs) are investigated using nano- and micro-indentation. The NGs are subjected to structural relaxation by annealing them close to the glass
A Sharma   +5 more
doaj   +1 more source

Effect of Heavy Ion Irradiation Dosage on the Hardness of SA508-IV Reactor Pressure Vessel Steel

open access: yesMetals, 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

Depth-Sensing Indentation Creep Behavior of Nanostructured Thermal Barrier Coatings from As-Synthesized t’-8YSZ Feedstocks

open access: yesNanomaterials, 2019
Nano-indentation is a popular method to characterize the micromechanical properties of nanostructured 8YSZ coatings. However, little research has focused on the creep behavior of nano-indentation and only the elastic modulus and nanohardness have been ...
Feifei Zhou   +4 more
doaj   +1 more source

Nano‐indentation investigation on nano‐twinned Cu–Ag alloys with GBAZ segregation

open access: yesMicro & Nano Letters, 2022
For the sake of comprehending the mechanical mechanisms of nano‐twinned (NT) Cu–Ag alloys with grain boundary affect zone (GBAZ) segregation, molecular dynamics (MD) simulations were used to observe its behaviours during the nano‐indentation progress ...
Dasheng Zhu   +5 more
doaj   +1 more source

Analysis of residual stress around a Berkovich nano-indentation by micro-Raman spectroscopy

open access: yesAIP Advances, 2019
Nano-indentation is a destructive measurement that introduces non-uniform residual stress around each nano-indentation. Herein, the residual stress distribution around a Berkovich nano-indentation on (001)- and (111)-plane silicon was studied by micro ...
Lulu Ma   +5 more
doaj   +1 more source

Effects of ball size and microstructures on indentation curves of Fe9Cr model alloys and tempered martensitic steel Eurofer97

open access: yesNuclear Materials and Energy, 2022
Nano-indentation with spherical indenters is a test technique largely used to determine the elastic–plastic behavior of a very small volume of material.
Peng Song, Philippe Spätig
doaj   +1 more source

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