Decomposition of icosahedral phase in Ti52Zr28Ni20 powder during electro-discharge sintering
- Decomposition of icosahedral phase in Ti52Zr28Ni20 powder during electro-discharge sintering
- G.A. Song; J.S. Shin; T.J. Kang; H.S. Choi; J.K. Lee; M.H. Lee; T.S. Kim; 에릭플러리; F. Prima; W.H. Lee; K.B. Kim
- Quasicrystals; Powder metallurgy; Phase transitions; X-ray diffraction
- Issue Date
- Journal of alloys and compounds
- VOL 504, NO S1, S302-S305
- A single pulse of 0.57–1.1 kJ/0.45 g-atomized spherical Ti52Zr28Ni20 powders in size range of 10–30 and
30–50μm consisting of a mixture of β-(Ti, Zr) and icosahedral phases was applied to understand the
structural evolution of icosahedral phase during electro-discharge sintering (EDS). The structural analysis
revealed that high electrical input energies leaded to complete decomposition of icosahedral phase
into C14 Laves and β-(Ti, Zr) phases. Furthermore, the critical input energy inducing decomposition of
icosahedral phase during EDS is dependent on the size of the powder.
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