High Temperature Compression Properties of Ni3(Si,Ti) Based Intermetallic Compounds

Takehito Hagisawa; Hirokazu Madarame; Shinji Tanaka; Yasuyuki Kaneno; Takayuki Takasugi

doi:10.4028/www.scientific.net/MSF.783-786.1129

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HomeMaterials Science ForumMaterials Science Forum Vols. 783-786High Temperature Compression Properties of...

High Temperature Compression Properties of Ni₃(Si,Ti) Based Intermetallic Compounds

Abstract:

High temperature compression properties of Al-, Cr-or Nb-added Ni₃(Si,Ti) based intermetallic compounds were investigated by uni-axial compression test and microstructural observation. The Al-or Cr-added Ni₃(Si,Ti) alloys after homogenization heat treatment exhibited a two-phase microstructure consisting of L1₂ and Ni-solid solution phases. The Nb-added Ni₃(Si,Ti) alloy after homogenization heat treatment exhibited a triple-phase microstructure consisting of G-phase with D8a structure and Ni-solid solution phase in the L1₂ matrix. The volume fraction of Ni-solid solution phase increased in order of Cr-, Nb-and Al-added Ni₃(Si,Ti) alloys. The Cr-added Ni₃(Si,Ti) alloy was deformable at high strain rate, while the Nb-added one was deformable at low strain rate. It can be considered that the deformability of Ni₃(Si,Ti) at high temperature is closely correlated with volume fraction of Ni-solid solution phase and recrystallization behavior.

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Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

1129-1135

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.1129

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Online since:

May 2014

Authors:

Takehito Hagisawa*, Hirokazu Madarame, Shinji Tanaka, Yasuyuki Kaneno, Takayuki Takasugi

Keywords:

Ductility, Intermetallic Compound, Ni-Solid Solution Phase, Strain Rate

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