| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive Ni-based metal glass alloy capable of keeping excellent mechanical strength even when the Ni-based metal glass alloy is hot-worked in the atmosphere or is coated with a heat-resistant resin. Ž<P>SOLUTION: The Ni-based metal glass alloy has the composition: (Ni<SB>1-x</SB>Fe<SB>x</SB>)<SB>100-a-b-c</SB>Si<SB>a</SB>B<SB>b</SB>M<SB>c</SB>(wherein M is at least one element selected from Cr and Cu; x, a, b and c satisfy 0≤x≤0.4, 10 atomic%≤(a+b)≤30 atomic%, 0 atomic%≤a≤25 atomic%, 0 atomic%≤b≤30 atomic%, 0 atomic%<c≤30 atomic% (on condition that M is Cu or contains Cu and the Cu content is ≤4 atomic%)). The Ni-based metal glass alloy has ΔTx of ≥20°C (wherein ΔTx is a value obtained by subtracting the glass transition temperature thereof from the crystallization starting temperature thereof), and has converted MIT folding endurance times of ≥3,500 times after heat-treated at 350°C for thirty minutes in an air atmosphere. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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