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Tensile behavior and fractography of Ti-TiAl multi-layered foil prepared by electron beam physical vapor deposition technology

  • Sinoma Wind Power Blade Co., Ltd
  • Harbin Institute of Technology Shenzhen
  • BeiJing Sinoma Composite Auto Parts Co. Ltd.
  • TaiZhou University

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

Abstract

Ti-TiAl multi-layered materials have been prepared by electron beam physical vapor deposition technique. The tensile behavior of samples at room temperature and high temperature was tested, and then the deformation mechanism at different temperature was analyzed according to the fracture surface. The results show that the tensile curves hot-pressed samples have a broad step during the plastic deformation process, and the breaking strain of the sample has been increased for a wide-range. The presence of Ti layers have led to the cracks stagger along the inter-laminar interface or the layer due to which micro laminate expresses a good characteristic of delayed fracture. With the increase of temperature, the bulk modulus and yield strength of multi-layered Ti-TiAl have been increased abnormally due to the anomalous yield strengthening behavior of TiAl intermetallic.

Original languageEnglish
Title of host publicationRecent Trends in Materials and Mechanical Engineering Materials, Mechatronics and Automation
Pages183-187
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Recent Trends in Materials and Mechanical Engineering, ICRTMME 2011 - Shenzhen, China
Duration: 27 Jan 201128 Jan 2011

Publication series

NameApplied Mechanics and Materials
Volume55-57
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Recent Trends in Materials and Mechanical Engineering, ICRTMME 2011
Country/TerritoryChina
CityShenzhen
Period27/01/1128/01/11

Keywords

  • EB-PVD
  • Fracture surfaces
  • Multi-layered materials
  • Tensile test

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