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Microstructure and mechanical properties ofAs-forgedTi-47Al-2Cr-2Nb-Y alloy

  • Harbin Institute of Technology
  • Economic and Technological Development Zone

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

Abstract

Ti-47Al-2Cr-2Nb-Y alloy pancake were produced by hot-pack forging. The microstructure of as-forged Ti-47Al-2Cr-2Nb-Y alloy were investigated by optical microscopy and scanning electron microscopy, showing that the forged alloy was composed of fine γ grains and retain cast lamella colonies surrounded by elongated B2 phase. Tensile properties of the material showed that yield strength (YS) and ultimate tensile strength (UTS) were decreased from 500MPa and 612MPa at room temperature to 420 MPa and 462 MPa at 800°C, respectively. With the temperature increasing to 900°C, elongation reached 120%.

Original languageEnglish
Title of host publicationAdvanced Materials and Processes
Pages1873-1878
Number of pages6
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 - Guangzhou, China
Duration: 16 Sep 201118 Sep 2011

Publication series

NameAdvanced Materials Research
Volume311-313
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011
Country/TerritoryChina
CityGuangzhou
Period16/09/1118/09/11

Keywords

  • Hot forged
  • Mechanical properties
  • Microstructure
  • TiAl based alloy

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