Microstructural Stability of th Intermetallic Ti-45Al-2W-0.5Si-0.5B in the 800-980°C Temperature Range (Articolo in rivista)

Type
Label
  • Microstructural Stability of th Intermetallic Ti-45Al-2W-0.5Si-0.5B in the 800-980°C Temperature Range (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Zhou L.Z. 1,2, Lupinc V. 1, Guo J.T. 2 (2003)
    Microstructural Stability of th Intermetallic Ti-45Al-2W-0.5Si-0.5B in the 800-980°C Temperature Range
    (literal)
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  • Zhou L.Z. 1,2, Lupinc V. 1, Guo J.T. 2 (literal)
Pagina inizio
  • 97 (literal)
Pagina fine
  • 105 (literal)
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  • A354 (literal)
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  • After exposing the gamma-TiAl base intermetallic compound Ti-45Al-2W-0.5Si-0.5B at 800-980°C, well over its intended application range, for up to 1000 h its thermal stability limit was tested. The fine alfa2 laths broke down by growth of equiaxed gamma grains, alfa2 transformed to B2 phase, and alfa2 laths coalesced. When temperature was increased, needle-like B2 became spherical, and its volume fraction increased due to the transformation of alfa2 to B2 phase. Addition of boron was beneficial to the thermal stability of the lamellar structure. Subsurface evolution during long-term aging was also investigated. (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1 CNR-IENI Sezione di Milano; 2 CAS-IMR, Shenyang, P.R. China (literal)
Titolo
  • Microstructural Stability of th Intermetallic Ti-45Al-2W-0.5Si-0.5B in the 800-980°C Temperature Range (literal)
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