Evolution of microstructure and residual stress in hot rolled Ti-6Al-4V plates subjected to different heat treatment conditions

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

Abstract

Hot rolled Ti-6Al-4V plate samples were taken from three different stages of an industrial heat treatment process; one as-rolled and two heat treated. This was followed by microstructure characterization using optical microscopy. Surface and through-thickness residual stress was determined using a combination of X-ray diffraction (XRD) and the contour method. Measured residual stress distributions showed similarities in distribution with that obtained for rolled Al-7050 alloy; including compressive troughs near the outer thickness on both sides, leading towards a tensile zone around the center with a local minima at the plate center thickness. Microstructure and residual stress data was then used to draw comparisons between the investigated conditions.
LanguageEnglish
Title of host publicationResidual Stresses 2018 – ECRS-10
Pages171-176
Number of pages6
Volume6
ISBN (Electronic)9781945291890
DOIs
Publication statusE-pub ahead of print - 11 Sep 2018

Fingerprint

Residual stresses
Heat treatment
Microstructure
Optical microscopy
Stress concentration
X ray diffraction
Hot Temperature

Keywords

  • contour method
  • x-ray diffraction
  • titanium alloy
  • phase transformation

Cite this

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title = "Evolution of microstructure and residual stress in hot rolled Ti-6Al-4V plates subjected to different heat treatment conditions",
abstract = "Hot rolled Ti-6Al-4V plate samples were taken from three different stages of an industrial heat treatment process; one as-rolled and two heat treated. This was followed by microstructure characterization using optical microscopy. Surface and through-thickness residual stress was determined using a combination of X-ray diffraction (XRD) and the contour method. Measured residual stress distributions showed similarities in distribution with that obtained for rolled Al-7050 alloy; including compressive troughs near the outer thickness on both sides, leading towards a tensile zone around the center with a local minima at the plate center thickness. Microstructure and residual stress data was then used to draw comparisons between the investigated conditions.",
keywords = "contour method, x-ray diffraction, titanium alloy, phase transformation",
author = "William Rae and Salah Rahimi",
year = "2018",
month = "9",
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Evolution of microstructure and residual stress in hot rolled Ti-6Al-4V plates subjected to different heat treatment conditions. / Rae, William; Rahimi, Salah.

Residual Stresses 2018 – ECRS-10. Vol. 6 2018. p. 171-176.

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

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AB - Hot rolled Ti-6Al-4V plate samples were taken from three different stages of an industrial heat treatment process; one as-rolled and two heat treated. This was followed by microstructure characterization using optical microscopy. Surface and through-thickness residual stress was determined using a combination of X-ray diffraction (XRD) and the contour method. Measured residual stress distributions showed similarities in distribution with that obtained for rolled Al-7050 alloy; including compressive troughs near the outer thickness on both sides, leading towards a tensile zone around the center with a local minima at the plate center thickness. Microstructure and residual stress data was then used to draw comparisons between the investigated conditions.

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KW - phase transformation

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