NICKEL-BASED METAL GLASS ALLOY, AND MOLDED MEMBER AND COMPOSITE MEMBER USING THE SAME

• Main Authors: AMITANI KENJI, SAOTOME YASUNORI, KUMAGAI TATSUYA, HIOKI KENJI
• Format: Patent
• Language: English
• Published: 02.09.2010
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

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. SOLUTION: The Ni-based metal glass alloy has the composition: (Ni1-xFex)100-a-b-cSiaBbMc(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. COPYRIGHT: (C)2010,JPO&INPIT