Microstructural characterization on martensitic α″ phase in Ti-Nb-Pd alloys

S. Q. Wu, D. H. Ping, Y. Yamabe-Mitarai, T. Kitashima, G. P. Li, R. Yang

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The alloying effect of Pd on the martensitic transformation behavior in Ti-Nb alloys has been systematically investigated using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The composition field of the orthorhombic α″ martensite is determined on the Ti-Nb-Pd isothermal section, and appears close to the Ti-Nb edge. The addition of small amounts of Pd affects the lattice parameters of the α″ significantly. It was noticed that increasing Pd content will increase a but decrease b value of the α″ while c remain almost constant. Such variations could make the martensitic transformation easier and a fully martensitic structure containing single α″ has been detected by XRD and TEM in a Ti-18.2Nb-0.5Pd (at.%) alloy. Transformation twinning of the (1 1 0)α″ type was observed in the transformed martensite although the density is low.

本文言語English
ジャーナルJournal of Alloys and Compounds
577
SUPPL. 1
DOI
出版ステータスPublished - 2013 11 15
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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