Skip to main navigation Skip to search Skip to main content

Tensile properties and deformation-fracture behavior of Ti-6Al-4V alloy at cryogenic temperature

  • S. L. Dong*
  • , Y. C. Xin
  • , G. Lu
  • , D. Z. Yang
  • , S. Y. He
  • , E. H. Han
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • CAS - Institute of Metal Research

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Tensile properties and deformation-fracture behavior at temperatures ranging from 123K to 293K of a Ti-6A1-4V alloy sheet with a thickness of 1.5mm has been studied, and the effects of testing temperature, specimen orientation and heat-treatment were investigated. An increase in strength and a decrease in fracture strain were found with decreasing tension temperature, and the anisotropy in tensile properties was observed at room and cryogenic temperatures both in the annealed and solution treated and aged (STA) specimens. TEM examinations indicated that plastic deformation occurred within both a and βphases in the STA specimens testing at either room or cryogenic temperature. The dominant deformation mechanism varied from dislocation slip at room temperature to twinning at 123K. SEM observations showed that the amount of dimples and tearing grains on fractured surfaces of the specimens decreased as testing temperature was decreased.

Original languageEnglish
Title of host publicationSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PublisherTrans Tech Publications Ltd
Pages207-210
Number of pages4
EditionPART 1
ISBN (Print)0878494626, 9780878494620
DOIs
StatePublished - 2007
Externally publishedYes
Event6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
Duration: 5 Nov 20079 Nov 2007

Publication series

NameMaterials Science Forum
NumberPART 1
Volume561-565
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Country/TerritoryKorea, Republic of
CityJeju
Period5/11/079/11/07

Keywords

  • Cryogenic temperature
  • Deformation
  • Fracture
  • Tension
  • Titanium alloy

Fingerprint

Dive into the research topics of 'Tensile properties and deformation-fracture behavior of Ti-6Al-4V alloy at cryogenic temperature'. Together they form a unique fingerprint.

Cite this