The mechanical behavior of 5052-H32 aluminum alloys under a pulsed electric current

Jae Hun Roh; Jeong Jin Seo; Sung Tae Hong; Moon Jo Kim; Heung Nam Han; John T. Roth

doi:10.1016/j.ijplas.2014.02.002

The mechanical behavior of 5052-H32 aluminum alloys under a pulsed electric current

Jae Hun Roh, Jeong Jin Seo, Sung Tae Hong, Moon Jo Kim, Heung Nam Han, John T. Roth

School of Engineering (Behrend)

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

197 Scopus citations

Abstract

The electroplasticity of an aluminum 5052-H32 alloy under a pulsed electric current is investigated experimentally. A pulsed electric current is applied to a specimen simultaneously with a quasi-static uniaxial tensile load. The experimental result shows a ratchet shape stress-strain curve under a pulsed electric current. The formability of the selected aluminum alloy is significantly improved at near room temperature depending on the electric pulse parameters. An empirical expression to describe the upper boundary of the ratchet shape stress-strain curve of the aluminum alloy under a pulsed electric current is suggested. Two electroplastic coefficients are used in the suggested empirical expression: one is a material constant and the other accounts for the effects of the electric energy density and the electric pulse period. The result of the present study is expected to provide a basis to develop sheet metal forming processes using electroplasticity.

Original language	English (US)
Pages (from-to)	84-99
Number of pages	16
Journal	International journal of plasticity
Volume	58
DOIs	https://doi.org/10.1016/j.ijplas.2014.02.002
State	Published - Jul 2014

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijplas.2014.02.002

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title = "The mechanical behavior of 5052-H32 aluminum alloys under a pulsed electric current",

abstract = "The electroplasticity of an aluminum 5052-H32 alloy under a pulsed electric current is investigated experimentally. A pulsed electric current is applied to a specimen simultaneously with a quasi-static uniaxial tensile load. The experimental result shows a ratchet shape stress-strain curve under a pulsed electric current. The formability of the selected aluminum alloy is significantly improved at near room temperature depending on the electric pulse parameters. An empirical expression to describe the upper boundary of the ratchet shape stress-strain curve of the aluminum alloy under a pulsed electric current is suggested. Two electroplastic coefficients are used in the suggested empirical expression: one is a material constant and the other accounts for the effects of the electric energy density and the electric pulse period. The result of the present study is expected to provide a basis to develop sheet metal forming processes using electroplasticity.",

author = "Roh, {Jae Hun} and Seo, {Jeong Jin} and Hong, {Sung Tae} and Kim, {Moon Jo} and Han, {Heung Nam} and Roth, {John T.}",

note = "Funding Information: This work was supported by a development program of local science park funded by the ULSAN Metropolitan City and the MEST (Ministry of Education, Science, and Technology). This work was also supported by the IT R&D program of MOTIE/KEIT ( 10044807 ). Moon-Jo Kim and Heung Nam Han were sponsored by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning ( 2013008806 ) and POSCO ( 2013Z029 , 0417-20130037 ). Advices from professor Jwo Pan (Department of Mechanical Engineering, The University of Michigan, Ann Arbor) are greatly appreciated.",

year = "2014",

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doi = "10.1016/j.ijplas.2014.02.002",

language = "English (US)",

volume = "58",

pages = "84--99",

journal = "International journal of plasticity",

issn = "0749-6419",

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AU - Roh, Jae Hun

AU - Seo, Jeong Jin

AU - Hong, Sung Tae

AU - Kim, Moon Jo

AU - Han, Heung Nam

AU - Roth, John T.

N1 - Funding Information: This work was supported by a development program of local science park funded by the ULSAN Metropolitan City and the MEST (Ministry of Education, Science, and Technology). This work was also supported by the IT R&D program of MOTIE/KEIT ( 10044807 ). Moon-Jo Kim and Heung Nam Han were sponsored by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning ( 2013008806 ) and POSCO ( 2013Z029 , 0417-20130037 ). Advices from professor Jwo Pan (Department of Mechanical Engineering, The University of Michigan, Ann Arbor) are greatly appreciated.

PY - 2014/7

Y1 - 2014/7

N2 - The electroplasticity of an aluminum 5052-H32 alloy under a pulsed electric current is investigated experimentally. A pulsed electric current is applied to a specimen simultaneously with a quasi-static uniaxial tensile load. The experimental result shows a ratchet shape stress-strain curve under a pulsed electric current. The formability of the selected aluminum alloy is significantly improved at near room temperature depending on the electric pulse parameters. An empirical expression to describe the upper boundary of the ratchet shape stress-strain curve of the aluminum alloy under a pulsed electric current is suggested. Two electroplastic coefficients are used in the suggested empirical expression: one is a material constant and the other accounts for the effects of the electric energy density and the electric pulse period. The result of the present study is expected to provide a basis to develop sheet metal forming processes using electroplasticity.

AB - The electroplasticity of an aluminum 5052-H32 alloy under a pulsed electric current is investigated experimentally. A pulsed electric current is applied to a specimen simultaneously with a quasi-static uniaxial tensile load. The experimental result shows a ratchet shape stress-strain curve under a pulsed electric current. The formability of the selected aluminum alloy is significantly improved at near room temperature depending on the electric pulse parameters. An empirical expression to describe the upper boundary of the ratchet shape stress-strain curve of the aluminum alloy under a pulsed electric current is suggested. Two electroplastic coefficients are used in the suggested empirical expression: one is a material constant and the other accounts for the effects of the electric energy density and the electric pulse period. The result of the present study is expected to provide a basis to develop sheet metal forming processes using electroplasticity.

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JO - International journal of plasticity

JF - International journal of plasticity

ER -

The mechanical behavior of 5052-H32 aluminum alloys under a pulsed electric current

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