A method for evaluating the mechanical performance of thin-walled titanium tubes

P.M. MacKenzie, C.A. Walker, J.K. McKelvie

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A method which was developed to compare the stress-strain properties of three types of thin-walled, commercially pure titanium tubes is presented. The tubes were of types intended for use in large heat-exchanger applications and were to be subjected to significant plastic deformation during subsequent assembly processes. It had been anticipated that small differences in chemical composition and tube-drawing treatment would produce quite different characteristics. It is known that the properties of titanium can exhibit considerable degrees of anisotropy, especially for wrought products; although axial properties of the materials could be evaluated using standard test equipment and procedures, a novel testing system had to be designed to allow the circumferential properties to be assessed. Significant differences between tube types were observed and anisotropic material behaviour was apparent.
LanguageEnglish
Pages400-406
Number of pages6
JournalThin-Walled Structures
Volume45
Issue number4
DOIs
Publication statusPublished - 2007

Fingerprint

Titanium
Heat exchangers
Plastic deformation
Anisotropy
Testing
Chemical analysis

Keywords

  • anisotropic
  • commercially pure titanium
  • ductility
  • mechanical testing
  • hydraulic
  • mechanical engineering

Cite this

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A method for evaluating the mechanical performance of thin-walled titanium tubes. / MacKenzie, P.M.; Walker, C.A.; McKelvie, J.K.

In: Thin-Walled Structures, Vol. 45, No. 4, 2007, p. 400-406.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A method for evaluating the mechanical performance of thin-walled titanium tubes

AU - MacKenzie, P.M.

AU - Walker, C.A.

AU - McKelvie, J.K.

PY - 2007

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N2 - A method which was developed to compare the stress-strain properties of three types of thin-walled, commercially pure titanium tubes is presented. The tubes were of types intended for use in large heat-exchanger applications and were to be subjected to significant plastic deformation during subsequent assembly processes. It had been anticipated that small differences in chemical composition and tube-drawing treatment would produce quite different characteristics. It is known that the properties of titanium can exhibit considerable degrees of anisotropy, especially for wrought products; although axial properties of the materials could be evaluated using standard test equipment and procedures, a novel testing system had to be designed to allow the circumferential properties to be assessed. Significant differences between tube types were observed and anisotropic material behaviour was apparent.

AB - A method which was developed to compare the stress-strain properties of three types of thin-walled, commercially pure titanium tubes is presented. The tubes were of types intended for use in large heat-exchanger applications and were to be subjected to significant plastic deformation during subsequent assembly processes. It had been anticipated that small differences in chemical composition and tube-drawing treatment would produce quite different characteristics. It is known that the properties of titanium can exhibit considerable degrees of anisotropy, especially for wrought products; although axial properties of the materials could be evaluated using standard test equipment and procedures, a novel testing system had to be designed to allow the circumferential properties to be assessed. Significant differences between tube types were observed and anisotropic material behaviour was apparent.

KW - anisotropic

KW - commercially pure titanium

KW - ductility

KW - mechanical testing

KW - hydraulic

KW - mechanical engineering

U2 - 10.1016/j.tws.2007.03.007

DO - 10.1016/j.tws.2007.03.007

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T2 - Thin-Walled Structures

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