Determination of tensile properties and residual stresses of Ni-Co thin films

Jun Hyub Park; Hong Yeol Bae; Yun Jae Kim

doi:10.1007/s12541-010-0091-3

Determination of tensile properties and residual stresses of Ni-Co thin films

Jun Hyub Park, Hong Yeol Bae, Yun Jae Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper reports tensile properties and residual stresses of Ni-Co thin films. To measure elastic (and plastic) properties, direct tensile tests using dog-bone type specimens are performed first. Assuming that residual stresses vary linearly through the film thickness, bending and membrane residual stress components are measured using cantilever beam and T-structure beam specimens, respectively. Averaged values of Young's modulus, yield strength and tensile strength are found to be about 163GPa, 1,700MPa and 2,000MPa, respectively. The membrane and bending residual stress components are found to be about 825MPa and 47MPa, respectively.

Original language	English
Pages (from-to)	771-778
Number of pages	8
Journal	International Journal of Precision Engineering and Manufacturing
Volume	11
Issue number	5
DOIs	https://doi.org/10.1007/s12541-010-0091-3
Publication status	Published - 2010 Oct

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MEST)(No. KOSEF 2009-0085880).

Keywords

Finite element analysis
Ni-co thin film
Residual stress measurement
Tensile properties measurement

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1007/s12541-010-0091-3

Cite this

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abstract = "This paper reports tensile properties and residual stresses of Ni-Co thin films. To measure elastic (and plastic) properties, direct tensile tests using dog-bone type specimens are performed first. Assuming that residual stresses vary linearly through the film thickness, bending and membrane residual stress components are measured using cantilever beam and T-structure beam specimens, respectively. Averaged values of Young's modulus, yield strength and tensile strength are found to be about 163GPa, 1,700MPa and 2,000MPa, respectively. The membrane and bending residual stress components are found to be about 825MPa and 47MPa, respectively.",

keywords = "Finite element analysis, Ni-co thin film, Residual stress measurement, Tensile properties measurement",

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AU - Bae, Hong Yeol

AU - Kim, Yun Jae

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Y1 - 2010/10

N2 - This paper reports tensile properties and residual stresses of Ni-Co thin films. To measure elastic (and plastic) properties, direct tensile tests using dog-bone type specimens are performed first. Assuming that residual stresses vary linearly through the film thickness, bending and membrane residual stress components are measured using cantilever beam and T-structure beam specimens, respectively. Averaged values of Young's modulus, yield strength and tensile strength are found to be about 163GPa, 1,700MPa and 2,000MPa, respectively. The membrane and bending residual stress components are found to be about 825MPa and 47MPa, respectively.

AB - This paper reports tensile properties and residual stresses of Ni-Co thin films. To measure elastic (and plastic) properties, direct tensile tests using dog-bone type specimens are performed first. Assuming that residual stresses vary linearly through the film thickness, bending and membrane residual stress components are measured using cantilever beam and T-structure beam specimens, respectively. Averaged values of Young's modulus, yield strength and tensile strength are found to be about 163GPa, 1,700MPa and 2,000MPa, respectively. The membrane and bending residual stress components are found to be about 825MPa and 47MPa, respectively.

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KW - Tensile properties measurement

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Determination of tensile properties and residual stresses of Ni-Co thin films

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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