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Study on optimum structure and residual stress of Ti/TiAl micro-laminated sheet

  • Li Ma*
  • , Luju He
  • , Haibo Wang
  • , Guping Wang
  • *Corresponding author for this work
  • TaiZhou University

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

Abstract

The residual stress and the effect of microstructure parameters on failure performance of Ti/TiAl micro-laminated sheet were studied by Correlative theory and FE method. The results showed that the fracture work increases gradually with the increasing of layer number or thickness ratio. However, the rising extent reduced gradually and when the two parameters exceeded a certain value, the fracture work would not be changed. The value of residual stress reached its maximum at the centre and reached its minimum at the edge of micro-laminated sheet. Residual stress in Ti layers and Ti-Al layers was compressive stress and tension stress respectively. With increasing of layer number or thickness ratio, compressive stress would rise gradually and compressive stress would reduce gradually.

Original languageEnglish
Title of host publicationAdvanced Materials and Computer Science
PublisherTrans Tech Publications Ltd
Pages1137-1140
Number of pages4
ISBN (Print)9783037850978
DOIs
StatePublished - 2011
Externally publishedYes

Publication series

NameKey Engineering Materials
Volume474-476
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Optimum design
  • Residual stress
  • Ti/Ti-Al micro-laminated sheet
  • Toughness

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