公开(公告)号：US20230042915A1

公开(公告)日：2023-02-09

申请号：US17967632

申请日：2022-10-17

申请人： POSCO

发明人： Chang Soo PARK ,  Jong Ho PARK ,  Byung Deug HONG ,  Yun Su KIM

IPC分类号： C21D9/46 ,  C23C8/26 ,  C22C38/00 ,  C21D8/12 ,  C22C38/04 ,  C21D1/68 ,  C22C38/02 ,  C21D3/04 ,  C21D6/00 ,  C22C38/06 ,  C21D1/06 ,  C23C8/80 ,  C21D1/72

摘要： An annealing separator for an oriented electrical steel sheet including: a first component includes a Mg oxide or a Mg hydroxide; and a second component including one kind among oxides and hydroxides of a metal selected from Al, Ti, Cu, Cr, Ni, Ca, Zn, Na, K, Mo, In, Sb, Ba, Bi, and Mn, or two or more kinds thereof.

公开(公告)号：US11549171B1

公开(公告)日：2023-01-10

申请号：US17669180

申请日：2022-03-11

申请人： Fluid Controls Pvt. Ltd.

发明人： Tansen Dhananjay Chaudhari ,  Rahul Manikrao Patil

IPC分类号： C23C8/50 ,  C23C8/80 ,  C21D1/06

摘要： An embodiment of the invention describes a method of treating an article to improve its corrosion resistance. The method includes the step of nitriding the article in a cyanide-free nitriding bath to obtain a nitrided article, heating the nitrided article in an atmosphere having nitrogen and carbon-carburizing to obtain a nitrided oxidised article. Further, in certain embodiments, the oxidised nitrided article may be coated with a metallic layer. The oxidised nitrided article with the metallic coating has improved corrosion resistance.

公开(公告)号：US20220268162A1

公开(公告)日：2022-08-25

申请号：US17597093

申请日：2020-06-18

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Gilles Charles Casimir KLEIN ,  Dominique Michel Serge MAGNAUDEIX

IPC分类号： F01D5/28 ,  B23P15/04 ,  B21K3/04 ,  C23C8/02 ,  C23C8/32 ,  C23C8/80

摘要： A metal core for hot-forming a titanium-based alloy metal component is disclosed. The metal core has on an outer surface, intended to come into contact with the metal component, a layer of metal carbonitride-enriched material. The metal core comprises a nickel- or cobalt-based alloy. The metal core comprising a steel coating having an outer surface intended to come into contact with the metal component, the steel coating having a layer of metal carbonitride-enriched material. Processes for manufacturing and regenerating the metal core and a process for hot-forming a metal component using the metal core are also disclosed.

公开(公告)号：US11352689B2

公开(公告)日：2022-06-07

申请号：US16629751

申请日：2018-07-05

申请人： INDUSTRIES MAILHOT INC.

发明人： Luc Mainville

IPC分类号： C23C8/80 ,  C23C8/50 ,  C23C8/56 ,  C21D1/62

摘要： A method and a system for cooling treating metal parts exiting a nitriding/nitrocarburizing treatment in molten salt baths, comprising a cooling chamber in direct relation with a nitriding/nitrocarburizing station for receiving parts therefrom; a gaseous nitrogen feeding unit connected to the cooling chamber and configured to create an inert atmosphere within the cooling chamber; and a screened transfer path between the nitriding/nitrocarburizing station and the cooling chamber; wherein after exiting molten salt baths of the nitriding/nitrocarburizing station, the treated parts are transferred to the cooling chamber through the screened transfer path, and cooled therein to a minimum temperature above a temperature at which salts congeal.

公开(公告)号：US20220170145A1

公开(公告)日：2022-06-02

申请号：US17436974

申请日：2019-11-13

申请人： SUZHOU MICROPORT ORTHORECON CO., LTD.

发明人： Yu SHEN ,  Tianbai YU ,  Chih-Hsin WENG

IPC分类号： C23C8/10 ,  C23C8/42 ,  C23C8/80 ,  A61L27/04 ,  A61L27/30

摘要： A treatment method for zirconium alloy includes performing a surface layer oxidation and removal treatment on a surface layer of zirconium alloy. The surface layer oxidation and removal treatment comprises performing an oxidation treatment on the surface layer of the zirconium alloy to obtain an oxide surface layer, and then removing the oxide surface layer to expose a metal substrate. A method for fabricating a surface oxide ceramic layer of zirconium alloy and a material for a medical implant are also provided.

公开(公告)号：US11242592B2

公开(公告)日：2022-02-08

申请号：US16324302

申请日：2017-09-27

申请人： DOWA THERMOTECH CO., LTD.

发明人： Katsushige Shimizu ,  Hokuto Hatanaka ,  Bin Sun ,  Masakazu Kawahara

IPC分类号： C23C8/26 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/00 ,  C21D1/76 ,  C23C8/02 ,  F27B9/04 ,  C21D9/32 ,  C23C8/80 ,  C21D1/06 ,  C21D11/00 ,  F27B9/02

摘要： A continuous nitriding treatment furnace includes a nitriding chamber, a heater, a first nitriding zone, and a second nitriding zone lower in atmosphere gas temperature than the first nitriding zone by 25° C. to 150° C., the continuous nitriding treatment furnace being configured such that an atmosphere gas in the first nitriding zone flows into the second nitriding zone and being configured to execute a nitriding treatment that forms an iron nitride compound layer composed of an ε phase or of the ε phase and a γ′ phase on a surface of the steel member in the first nitriding zone and precipitates the γ′ phase in the iron nitride compound layer in the second nitriding zone.

公开(公告)号：US11217370B2

公开(公告)日：2022-01-04

申请号：US15546387

申请日：2016-01-22

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Jian-Ping Wang ,  YanFeng Jiang

IPC分类号： H01F1/047 ,  H01F1/00 ,  H01F41/02 ,  C22C38/00 ,  C23C8/60 ,  C23C8/02 ,  C23C8/80 ,  C23C8/24 ,  C23C8/18 ,  C23C8/26

摘要： A permanent magnet may include a Fe16N2 phase in a strained state. In some examples, strain may be preserved within the permanent magnet by a technique that includes etching an iron nitride-containing workpiece including Fe16N2 to introduce texture, straining the workpiece, and annealing the workpiece. In some examples, strain may be preserved within the permanent magnet by a technique that includes applying at a first temperature a layer of material to an iron nitride-containing workpiece including Fe16N2, and bringing the layer of material and the iron nitride-containing workpiece to a second temperature, where the material has a different coefficient of thermal expansion than the iron nitride-containing workpiece. A permanent magnet including an Fe16N2 phase with preserved strain also is disclosed.

公开(公告)号：US11203943B2

公开(公告)日：2021-12-21

申请号：US16862830

申请日：2020-04-30

申请人： Raytheon Technologies Corporation

发明人： Agnieszka M. Wusatowska-Sarnek

IPC分类号： F01D5/28 ,  F01D11/12 ,  C23C8/68 ,  C23C8/80

摘要： A gas turbine engine includes: a turbine section including a casing extending circumferentially about a plurality of turbine blades and having at least one seal member coated with an abradable coating. At least one turbine blade has sides and a tip and at least one seal member is located adjacent to the tip of the at least one turbine blade. The tip of the at least one turbine blade has a wear resistant layer and an abrasive coating disposed on the wear resistant layer. The wear resistant layer has a thickness less than or equal to 10 mils (254 micrometers) and includes metal boride compounds.

公开(公告)号：US11198920B2

公开(公告)日：2021-12-14

申请号：US16691951

申请日：2019-11-22

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Hyundai Steel Company

发明人： Jae-Yoon Hwang ,  Min-Woo Kang ,  Shin-Woong Jeong ,  Soon-Jae Won ,  Sang-Min Song ,  Seung-Hyun Hong ,  Min-Woo Kang

IPC分类号： C21D9/52 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C21D1/32 ,  B21B3/00 ,  C21D6/00 ,  C23C8/32 ,  C23C8/80 ,  C21D8/06

摘要： Disclosed is a method for manufacturing high-carbon bearing steel, which include: heating a billet at a temperature of about 950 to 1,050° C. for about 70 to 120 minutes, rolling the billet to manufacture a wire rod, winding the wire rod to manufacture a wire rod coil, cooling the wire rod coil, and subsequently heat treating the wire rod coil for spheroidizing and carbonitriding, respectively. The bearing steel may include an amount of about 0.9 to 1.3 wt % of carbon (C), an amount of about 1.1 to 1.6 wt % of silicon (Si), an amount of about 1.0 to 1.5 wt % of manganese (Mn), an amount of about 1.5 to 1.9 wt % of chromium (Cr), an amount of about 0.2 to 0.6 wt % of nickel (Ni), an amount of about 0.1 to 0.3 wt % of molybdenum (Mo), and the balance iron (Fe) based on the total weight thereof.

公开(公告)号：US11161175B2

公开(公告)日：2021-11-02

申请号：US16340031

申请日：2017-10-06

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Jian-Ping Wang ,  Bin Ma ,  Jinming Liu ,  Yiming Wu ,  YanFeng Jiang

IPC分类号： B22F1/02 ,  B22F1/00 ,  H01F1/055 ,  H01F1/059 ,  B22F9/04 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  C22C38/00 ,  C22C38/10

摘要： Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.