The Effect of In Addition on the Glass-Forming Ability in Cu-Ti-Zr-Ni-Si Metallic Glasses

Abstract

The effect of In substitution for Ni on the glass forming ability has been studied in Cu₄₇Ti₃₃Zr₁₁Ni_8−xIn_xSi₁ (x = 0, 2, 4, 6, 8) alloys by using thermal analysis and X-ray diffractometry. Partial substitution of Ni by In in Cu₄₇Ti₃₃Zr₁₁Ni₈Si₁ promotes the glass forming ability. Cu₄₇Ti₃₃Zr₁₁Ni₆In₂Si₁ bulk metallic glass with diameter of 6 mm can successfully be fabricated by Cu-mold injection casting method. ΔT_x and K parameter show a good relationship with the measured maximum diameter of the amorphous specimen.