High-temperature-wear-resistant AlCoCrFeNiNbx high-entropy alloy

The invention discloses a high-temperature-wear-resistant AlCoCrFeNiNbx high-entropy alloy which is prepared by the following steps: by taking high-purity (99.99%) Al, Co, Fe, Cr, Ni and Nb metal blocks as initial raw materials, cleaning, drying and weighing the initial raw materials according to a...

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Bibliographische Detailangaben
Hauptverfasser:	LI LEYU, MA LI, TAN TING, LUO RUKAI, ZHOU JIE, WANG YUQING, GAO ANLAN, LI WEIPENG, MA JIAMEI, WEI XIANG, DENG XIAOHUA, PENG BIAO, YIN KAIZHEN, PENG WENYI, CHEN FAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a high-temperature-wear-resistant AlCoCrFeNiNbx high-entropy alloy which is prepared by the following steps: by taking high-purity (99.99%) Al, Co, Fe, Cr, Ni and Nb metal blocks as initial raw materials, cleaning, drying and weighing the initial raw materials according to a designed atomic ratio after removing oxide skin, then putting the treated raw materials into a copper mold crucible of a high-vacuum electric arc melting furnace in sequence according to melting points from low to high, and repeatedly melting to obtain the high-temperature-wear-resistant AlCoCrFeNiNbx high-entropy alloy. And the high-temperature wear-resistant high-entropy alloy is obtained. The Nb element with high melting point, high strength and low density is added into AlCoCrFeNi, and Nb is combined with other elements, so that the hardness of the high-entropy alloy is improved, meanwhile, generation of an oxidation film mainly containing Al, Cr and Nb elements is promoted, the lubricating and barrier effects