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:
Oct. 17, 2023
Filed:
May. 30, 2023
Central South University, Hunan, CN;
Jiangxi University of Science and Technology, Jiangxi, CN;
Yong Du, Jiangxi, CN;
Jian Lv, Jiangxi, CN;
Keke Chang, Jiangxi, CN;
Weibin Zhang, Jiangxi, CN;
Ming Lou, Jiangxi, CN;
Zepeng Li, Jiangxi, CN;
Yangqing Lv, Jiangxi, CN;
Central South University, Changsha, CN;
JiangXi University of Science and Technology, Ganzhou, CN;
Abstract
The present invention provides a rare earth hard alloy and a preparation method and application thereof. The rare earth hard alloy includes 6 to 15 wt % of a binding phase and the balance of a hard phase, wherein the binding phase includes 30 to 50 wt % of NiAl, 0.1 to 0.5 wt % of a rare earth element and the balance of Ni. According to the rare earth hard alloy provided by the invention, the Ni—NiAl-rare earth element (e.g., Ni—NiAl—Y)-based binding phase is strengthened by NiAl, and an ordered strengthening phase is formed and is diffused and distributed in the binding phase, such that the rare earth hard alloy has a better high-temperature oxidation resistance, a better room-temperature fracture toughness and a better high-temperature bending strength than a conventional hard alloy.