High-entropy nickel-cobalt-chromium-iron-silicon vanadium alloy obtained by melting nickel, cobalt and vanadium and cooling to obtain first masteralloy, melting chromium, iron and silicon and cooling to obtain second masteralloy, mixing and melting both masteralloys, cooling to obtain ingot
	CHATTREE A; SINGH J; BALPANDE A; JANGRA P; NENE S
	2024-01-05
专利权人	INDIAN INST TECHNOLOGY JODHPUR (INTE-Non-standard)
申请日期	2024-01-05
专利号	IN202411001040-A
成果简介	NOVELTY - A high-entropy nickel-cobalt-chromium-iron-silicon vanadium alloy (I), is claimed. USE - High-entropy nickel-cobalt-chromium-iron-silicon vanadium alloy (I). ADVANTAGE - The high-entropy alloy exhibits tensile strength of 545-630 MPa, and tensile plasticity of 80-85 %, when deformed at constant initial strain rate of 10-3 s-1 in the as-cast condition, a compressive strength of 760-780 MPa, and compressive plasticity of 50-60%, when deformed at constant initial strain rate of 10-3 s -1 in the as-cast condition, and oxidation weight change of less than 1 mg/cm2 at 900-1050 ℃ for 90-100 hours. The oxidation resistant high-entropy alloy shows the absence of very costly and heavy refractory elements in the alloy system. The fabrication process of the alloy is simple and conventional and is composed of easily available, non-toxic, non-flammable/combustible, non-refractory elements leading to an economic, safe and a reliable product. DETAILED DESCRIPTION - A high-entropy nickel-cobalt-chromium-iron-silicon vanadium alloy of formula (NiaCobCrcFedSieVf) (I), is claimed. (a = 20-50 at.%; b = 20-40 at.%; c = 10-20 at.%; d, e = 1-10 at.%; and f = 1-25 at.%). An INDEPENDENT CLAIM is included for a process for preparation of the high-entropy alloy (I), which involves (a) melting nickel, cobalt and vanadium and cooling to obtain a first masteralloy, (b) melting chromium, iron and silicon and cooling to obtain a second masteralloy, (c) mixing and melting the first and second masteralloys, followed by cooling to obtain an ingot, and (d) remelting the ingot and cooling to obtain the alloy.
IPC 分类号	C07F-015/00 ; C22C-001/02 ; C22C-029/08 ; C22C-030/00 ; C22C-030/02
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/18542
专题	中国科学院新疆生态与地理研究所
作者单位	INDIAN INST TECHNOLOGY JODHPUR (INTE-Non-standard)
推荐引用方式 GB/T 7714	CHATTREE A,SINGH J,BALPANDE A,et al. High-entropy nickel-cobalt-chromium-iron-silicon vanadium alloy obtained by melting nickel, cobalt and vanadium and cooling to obtain first masteralloy, melting chromium, iron and silicon and cooling to obtain second masteralloy, mixing and melting both masteralloys, cooling to obtain ingot. IN202411001040-A[P]. 2024.

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