Determining Yield Strength of Metals by Microindentation with a Spherical Tip

Rudnitsky, V. A.; Kren, A. P.; Lantsman, G. A.

doi:10.1134/s1061830919020098

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…The greatest success in the development of methods and tools for dynamic instrumented indentation was achieved by Rudnitskiy and colleagues [26,27]. Using a portable impact hardness tester of their own design, they demonstrated the possibility of measuring the elastic modulus [28], the yield strength [29] and the strain hardening coefficient of metals [30]. The disadvantage of these results was the gravitational method of impact body acceleration used in the impact device, which allowed them to perform measurements only on a horizontal surface, as well as the lack of uniform requirements for the impact devices and, as a consequence, the impossibility of obtaining comparable data.…”

Section: Introductionmentioning

confidence: 99%

Modification of the Leeb Impact Device for Measuring Hardness by the Dynamic Instrumented Indentation Method

et al. 2022

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The article is devoted to modification of the impact devices of Leeb hardness testers for the implementation of the dynamic instrumented indentation method. The results obtained made it possible to construct a load–displacement curve using primary EMF signals and made it possible to determine the values of the dissipated and elastic impact body energy, the maximal load of indentation, the maximal and residual penetration depth and the geometric parameters of the indentation region, namely the contact area of the indenter with the surface and the volume of the displaced material. The listed parameters of the indentation process allow us to measure the contact and volume hardness, the elastic modulus and the yield strength of test objects with portable hardness testers.

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