Implementation of the new minimum resultant error approach to extract elastic-plastic properties of titanium nitride thin film by nanoindentation, finite element analysis, and modified dimensional analysis

Bazzaz, Ehsan; Darvizeh, A.; Alitavoli, M.; Tooski, Mehdi Yarmohammad

doi:10.1177/0954406220914326

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…The previous case study illustrated that the new algorithm is completely compatible with the layered materials. As a practical case, the material plastic properties for the sample of cutting tool steel coated with TiN thin film were calculated by the authors [42,45]. Another case that has been rarely studied by other researchers is the plastic properties of TiAlN thin films.…”

Section: Resultsmentioning

confidence: 99%

Nanoscale characterization of Titanium-based coatings plastic properties by dimensional analysis, FEA and Infimum resultant error criterion

Bazzaz

Darvizeh

Alitavoli

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Working with continuously harder materials and higher cutting speeds requires novel mechanical properties for cutting tools. The application of titanium-based coatings deposited by PVD is experienced as one of the most effective solutions. To assure achievement of the required characteristics in the metal cutting process, which mainly includes turning, milling, drilling and some other methods, extracting the plastic properties has been the main challenge for a long time. In this paper, a hybrid method emerging the modified dimensional analysis method (MDAM) and experimental data with novel algorithm named as minimum resultant error method is proposed. By using this algorithm, yield stress, strain hardening exponent and strain hardening coefficient are extracted as unique measures via using a single indenter nanoindentation result. An existing experimental output data and numerical solution of TiN thin film nanoindentation test are used to verify the proposed approach. The same procedure is implemented to calculate the plastic properties of TiAlN coating. Some of the results for TiAlN are among the rarely investigated matters. The effects of mesh refinement, friction coefficient and indenter tip radius are elucidated. According to the results attained from the new approach, there is an excellent agreement between MDAM and the combined algorithm results (4% for yield stress and 7% for strain hardening exponent). The resultant error is calculated in the range of 0.47-4.1% for optimized deviation. To provide another criterion of the adaptability of the results, the elastic modulus and hardness are calculated within less than 5% and 9% errors, respectively.

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Section: Resultsmentioning

confidence: 99%

Nanoscale characterization of Titanium-based coatings plastic properties by dimensional analysis, FEA and Infimum resultant error criterion

Bazzaz

Darvizeh

Alitavoli

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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“…where the parameters, _ e and _ e 0 are the actual strain rate and reference strain rate (1/s), respectively. Considering equations obtained by Bazzaz et al (11)(12)(13) leads to a combination of power law and Johnson-Cook constitutive equations in the following form…”

Section: Fem Simulationmentioning

confidence: 99%

“…A novel method is proposed and implemented to obtain the mechanical properties of the material surface in micro scale. After the successful application of this method for bulk 11 and coated materials, 12,13 it is put into practice to determine the mechanical properties of the surfaces after impact. For this purpose, a combined method of modified dimensional analysis and minimum resultant error algorithms are used.…”

Section: Introductionmentioning

confidence: 99%

A novel method for determination of surface treatment effect on mechanical properties of titanium bulk material

Bazzaz

Darvizeh

Alitavoli

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Improving the mechanical properties of the material surface has been the main aim of the researchers for a long time. Utilizing of mechanical treatment procedures, such as direct impact, has been widely used for the bulk materials, but determination of the change in the mechanical properties of impacted material has not been exactly investigated. The main novelty of this paper is the determination of the effect of mechanical treatments on the mechanical properties of bulk materials. For this purpose, the new developed combined algorithm of modified dimensional analysis and minimum resultant error methods were emerged with FEA and experimental data. The finite element analysis (FEA) included the analysis of the impact with nanoindentation in a continued procedure to allow the investigation of the impact on the results of the nanoindentation. Previously, this trend had not been applied to analyze such phenomenon. The challenges of preparing a perfect analysis model to suit the nanoscale process (nanoindentation) and macro process (ball impact) were another investigation field of this research work. The result of this research was a complete calculation of the parameters of Johnson–Cook constants for titanium (Ti) bulk material including the most important strain rate coefficient (C). Comparison of Ti mechanical characteristics shows high improvement in yield stress (24%) against lower change in the elastic modulus (1.2%).

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Investigation on cross-scale indentation scaling relationships of elastic–plastic solids

Lin

Wei

2021

Acta Mech

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Implementation of the new minimum resultant error approach to extract elastic-plastic properties of titanium nitride thin film by nanoindentation, finite element analysis, and modified dimensional analysis

Cited by 6 publications

References 45 publications

Nanoscale characterization of Titanium-based coatings plastic properties by dimensional analysis, FEA and Infimum resultant error criterion

Nanoscale characterization of Titanium-based coatings plastic properties by dimensional analysis, FEA and Infimum resultant error criterion

A novel method for determination of surface treatment effect on mechanical properties of titanium bulk material

Investigation on cross-scale indentation scaling relationships of elastic–plastic solids

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