Results 21 to 30 of about 19,950 (296)

Numerical Simulation of the Depth-Sensing Indentation Test with Knoop Indenter [PDF]

open access: yesMetals, 2018
Depth-sensing indentation (DSI) technique allows easy and reliable determination of two mechanical properties of materials: hardness and Young’s modulus. Most of the studies are focusing on the Vickers, Berkovich, and conical indenter geometries. In case of Knoop indenter, the existing experimental and numerical studies are scarce.
Maria I. Simões   +3 more
openaire   +3 more sources

Depth-sensing indentation tests in studying plastic instabilities [PDF]

open access: yes, 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
core   +1 more source

A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth

open access: yesAdvances in Materials Science and Engineering, 2020
The spherical indentation technique provides an easy way to evaluate the integrity of in-service structures because it is nondestructive. In this study, a simple method was proposed to measure mechanical properties such as the yield strength, the ...
Ying Kan   +3 more
doaj   +1 more source

Effect of Strain Rate on Nano-Scale Mechanical Behavior of A-Plane (112¯0) ZnO Single Crystal by Nanoindentation

open access: yesMicromachines, 2023
In this study, nanoindentation tests at three different strain rates within 100 nm indentation depth were conducted on an a-plane (112¯0) ZnO single crystal to investigate the effect of strain rate on its nano-scale mechanical behavior.
Xiaolin Zhu   +8 more
doaj   +1 more source

Microhardness Variation with Indentation Depth for Body-Centered Cubic Steels Pertinent to Grain Size and Ferrite Content. [PDF]

open access: yesMaterials (Basel)
For a micro-indentation hardness test with non-destructivity, the Nix–Gao model is widely used to describe tested hardness or microhardness variation with an indentation depth induced by indentation size effect, in which tested hardness approaches ...
Xu A, Song X, Ye M, Wan Y, Zhang C.
europepmc   +2 more sources

Dynamic Indentation Characteristics for Various Spacings and Indentation Depths: A Study Based on Laboratory and Numerical Tests

open access: yesAdvances in Civil Engineering, 2018
Laboratory and numerical study tests were conducted to investigate the dynamic indentation characteristics for various spacings and indentation depths. First, laboratory tests indicate that the increase in the indentation depth first resulted in enlarged
Jie Liu, Wen Wan, Yu Chen, Jun Wang
doaj   +1 more source

Nano Mechanical Properties of Flame Sprayed NiCrBSi Coating

open access: yesCailiao gongcheng, 2018
To reveal the mechanical properties of thermal spray coating on different scales,flame spray NiCrBSi coating with average thickness 750μm was prepared on 45 carbon steel substrate, the mechanical properties, elastic-plasticity and indentation deformation
YU He-long   +5 more
doaj   +1 more source

Indentation Characteristic Strain Determined Based on Metallic Material Damage [PDF]

open access: yesArchives of Metallurgy and Materials
Characteristic strain is a key parameter connecting the hardness and flow stress for indentation experiments. However, there are significant difference between the characteristic strains obtained from previous models.
H. Zhang, Z. Guo, Z. Yuan
doaj   +1 more source

Mathematical model for the tensile strength of the crimping assembly of aviation wiring harness end

open access: yesScientific Reports, 2021
In this study, the relationship between the tensile strength and the indentation depth was studied by analysing the deformation mechanism of the crimping assembly of the aviation wiring harness end.
Pin Li   +5 more
doaj   +1 more source

What is indentation hardness? [PDF]

open access: yes, 2000
Using dimensional analysis and finite element calculations, we derive simple scaling relationships for loading and unloading curve, contact depth, and hardness.
郑哲敏   +2 more
core   +1 more source

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