Patent ID: 11866811
Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A Fe-based alloy containing: 15% to 20% by weight of nickel (Ni); 0.5% to 3% by weight of manganese (Mn); 2% to 8% by weight of cobalt (Co); and 0.1% to 0.5% by weight of carbon (C), the Fe-based alloy satisfying a condition of 18% by weight≤[Ni]+[Mn]<25% by weight, wherein [Ni] represents the weight content of nickel (Ni) and [Mn] represents the weight content of manganese (Mn),
wherein the Fe-based alloy has an austenite-martensite composite structure at room temperature, and is free from chromium (Cr), molybdenum (Mo), vanadium (V), and tungsten (W).