Characterization of flow stress for commercially pure titanium subjected to electrically-assisted deformation

James Magargee, Fabrice Morestin, Jian Cao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Uniaxial tension tests were conducted on thin commercially pure titanium sheets subjected to electrically-assisted deformation using a new experimental setup to decouple thermal-mechanical and possible electroplastic behavior. The observed absence of stress reductions for specimens air-cooled to near room temperature motivated the need to reevaluate the role of temperature on modeling the plastic behavior of metals subjected to electrically-assisted deformation, an item that is often overlooked when invoking electroplasticity theory. As a result, two empirical constitutive models, a modified-Hollomon and the Johnson-Cook models of plastic flow stress, were used to predict the magnitude of stress reductions caused by the application of constant DC current and the associated Joule heating temperature increase during electrically-assisted tension experiments. Results show that the thermal-mechanical coupled models can effectively predict the mechanical behavior of commercially pure titanium in electrically-assisted tension and compression experiments.

Original languageEnglish (US)
Title of host publicationASME 2013 International Manufacturing Science and Engineering Conference Collocated with the 41st North American Manufacturing Research Conference, MSEC 2013
Volume1
DOIs
StatePublished - Dec 18 2013
EventASME 2013 International Manufacturing Science and Engineering Conference Collocated with the 41st North American Manufacturing Research Conference, MSEC 2013 - Madison, WI, United States
Duration: Jun 10 2013Jun 14 2013

Other

OtherASME 2013 International Manufacturing Science and Engineering Conference Collocated with the 41st North American Manufacturing Research Conference, MSEC 2013
Country/TerritoryUnited States
CityMadison, WI
Period6/10/136/14/13

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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