# Characterization of the Strain-Rate-Dependent Plasticity of Alloys Using Instrumented Indentation Tests

https://mdr.nims.go.jp/datasets/9489e325-930d-48d9-bafc-71f11b0bb7dc

## File

- [chen_crystals2021.pdf](https://mdr.nims.go.jp/filesets/047b7756-e59a-46f5-b39d-e8eeb93f704c/download) ([Detail](https://mdr.nims.go.jp/filesets/047b7756-e59a-46f5-b39d-e8eeb93f704c.md))

## Id

9489e325-930d-48d9-bafc-71f11b0bb7dc

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-02-22T06:13:21.466205Z

## Updated at

2024-01-05T13:12:50.301334Z

## Published at

2023-02-28T02:24:44.123527Z

## Doi



## First published url

https://doi.org/10.3390/cryst11111316

## Date published

2021-10-28

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Characterization of the Strain-Rate-Dependent Plasticity of Alloys Using
    Instrumented Indentation Tests
  title_type: original
  lang: en

## Description

- description: Instrumented indentation tests are an efficient approach to characterize
    stress--strain curves instead of tensile or compression tests and have recently
    been applied to evaluate mechanical properties at elevated temperatures. In high-temperature
    tests, the rate dependency of the applied load appears dominant. In this study,
    the strain-rate-dependent plasticity in instrumented indentation tests at high
    temperatures was characterized through the assimilation of experiments with a
    simulation model. Accordingly, a simple constitutive model of strain-rate-dependent
    plasticity was defined, and the material constants were determined to minimize
    the difference between the experimental results and the corresponding simulations
    at a constant high temperature. Finite element simulations using a few estimated
    mechanical properties were compared with the corresponding experiments in compression
    tests at the same temperature for the validation of of the estimated material
    response. The constitutive model and determined material constants can reproduce
    the strain-rate-dependent material behavior under various loading speeds in instrumented
    indentation tests; however, the load level of computational simulations is lower
    than those of the experiments in cases of slow test speeds in compression tests.
    The results indicated that the error comes from the material behavior of polycrystalline
    aggregate such as grain boundary sliding in the compression tests because the
    deformation area of instrumented indentation tests is small enough to evaluate
    the material behavior of single crystal.
  description_type: abstract
  lang: eng

## Creator

- name: Ta-Te Chen
  role: author
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Ikumu Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-7693-1675
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Tatsuya Funazuka
  role: author

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: strain-rate-dependent plasticity
  schema: not_defined
- subject: instrumented indentation test
  schema: not_defined
- subject: finite elements
  schema: not_defined
- subject: mechanical testing
  schema: not_defined

## Rights

- description: Creative Commons BY Attribution 4.0 International
  identifier: https://creativecommons.org/licenses/by/4.0/

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## Embargo



## Journal

- title: Crystals
  issn: '20734352'
  volume: '11'
  issue: '11'
  start_page: 1316
  end_page: 1316

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## Fileset

- id: 047b7756-e59a-46f5-b39d-e8eeb93f704c
  filename: chen_crystals2021.pdf
  content_type: application/pdf
  size: 2622199
  md5: 13e2bd0e53d272e4c038bb15f50b972d

## Thumbnail

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filename: chen_crystals2021.pdf