Selection of the Composition with High Glass Forming Ability in Zr-Cu-Ni-Al Bulk Metallic Glasses

Table 1

The new alloy compositions, abbreviations, adjustment of mixing constants, critical sizes 𝐷_max, and thermal parameters for the Zr-Cu-Ni-Al alloys.

BMGs compositions (abbreviation)	Mixing coefficients 𝑎, 𝑏, and 𝑐	𝐷max	𝑇𝑔	𝑇𝑥	𝑇𝑚	𝑇𝑔/𝑇𝑚
Zr51Cu20.7Ni12Al16.3  (1Zr51)	𝑎=1/3, 𝑏=1/3, 𝑐=1/3	<5 mm	727	817	1049	0.6930
Zr51Cu23.25Ni13.5Al12.25  (2Zr51)	𝑎=3/8, 𝑏=3/8, 𝑐=2/8	8 mm	726	806	1047	0.6934
Zr51Cu24.22Ni14.06Al10.72  (3Zr51)	𝑎=6.25/16, 𝑏=6.25/16, 𝑐=3.5/16	10 mm	725	781	1041	0.6964