The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2021
Filed:
Mar. 21, 2017
Postech Academy-industry Foundation, Pohang-si, KR;
The Industry & Academic Cooperation IN Chungnam National University, Daejeon, KR;
Byeong-joo Lee, Pohang-si, KR;
Sung-hak Lee, Pohang-si, KR;
Hyoung-seop Kim, Pohang-si, KR;
Young-sang Na, Changwon-si, KR;
Sun-ig Hong, Daejeon, KR;
Won-mi Choi, Pohang-si, KR;
Chang-woo Jeon, Suwon-si, KR;
Seung-mun Jung, Yangsan-si, KR;
POSTECH ACADEMY-INDUSTRY FOUNDATION, Pohang-si, KR;
THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY, Daejeon, KR;
Abstract
The present invention relates to a high-entropy alloy especially having excellent low-temperature tensile strength and elongation by means of having configured, through thermodynamic calculations, an alloy composition region having an FCC single-phase microstructure at 700° C. or higher, and enabling the FCC single-phase microstructure at room temperature and at an ultra-low temperature. The high-entropy alloy, according to the present invention, comprises: Co: 3-12 at %; Cr: 3-18 at %; Fe: 3-50 at %; Mn: 3-20 at %; Ni: 17-45 at %; V: 3-12 at %; and unavoidable impurities, wherein the ratio of the V content to the Ni content (V/Ni) is 0.5 or less, and the sum of the V content and the Co content is 22 at % or less.