Prediction of the creep and tensile properties of near-α titanium alloys

T. Kitashima, M. Hagiwara, R. Sahara, Somesh Kr Bhattacharya, S. Iwasaki

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

1 Citation (Scopus)

Abstract

The tensile and creep properties of near-α Ti alloys with added Al, Ga, Sn, Zr, Mo, Nb, Ta, W, Si, and Ge were analyzed by using a regression analysis technique. The tensile test was performed at room temperature for 27 alloys. The creep test was carried out under a constant stress of 137 MPa at 650 °C for 30 alloys and 310 MPa at 600 °C for 21 alloys. The squared multiple correlation coefficients for the tensile elongation and minimum creep strain rate were 0.97 and 0.84, respectively. In addition, the effect of α stabilizing elements on the tensile and creep properties of those alloys was examined. The tensile elongation and minimum creep strain rate decreased between Al equivalences of 8 and 10. However, those values can be scattered depending on the composition and microstructure even with an almost constant value regarding the Al equivalence. The effect of adding Ga on the tensile elongation and minimum creep strain rate was also examined by using regression equations.

Original languageEnglish
Title of host publicationMaterial and Manufacturing Technology VIII - 8th ICMMT
EditorsGhenadii Korotcenkov, Ghenadii Korotcenkov, Syed H. Masood
PublisherTrans Tech Publications Ltd
Pages201-206
Number of pages6
ISBN (Print)9783035711585
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event8th International Conference on Material and Manufacturing Technology, ICMMT 2017 - Singapore, Singapore
Duration: 2017 May 42017 May 6

Publication series

NameSolid State Phenomena
Volume266 SSP
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Other

Other8th International Conference on Material and Manufacturing Technology, ICMMT 2017
CountrySingapore
CitySingapore
Period17/5/417/5/6

Keywords

  • Al equivalence
  • Creep
  • Prediction
  • Tensile
  • Titanium alloy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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