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公开(公告)号：US12091731B2
公开(公告)日：2024-09-17
申请号：US17874266
申请日：2022-07-26
发明人： Xingchen Yan , Cheng Chang , Qingkun Chu , Changguang Deng , Min Liu
CPC分类号： C22C14/00 , B22F1/05 , B22F1/065 , B22F9/14 , C22C1/0458 , B22F2301/205 , B22F2304/10
摘要： Disclosed is a biomedical β titanium alloy and a preparation method thereof. Its composition includes: Mo: 9.20-13.50%; Fe: 1.00-3.20%; Zr: 3.50-8.20%; Ta: 0-1.00%; the balance is Ti. The β titanium alloy is suitable for the laser additive manufacturing technology, and the prepared parts have a dense equiaxed grain structure with ultra-low grain size and a small number of columnar grain structures, which produces a fine-grain strengthening effect, and greatly improve the hardness and tribocorrosion performance of the alloy material. Also provided is a method for preparing a non-toxic, low-elasticity, and tribocorrosion resistant biomedical β titanium alloy material. A powder prepared from the above alloy components is subjected to a laser additive manufacturing technology to prepare a corresponding β titanium alloy with high-hardness, good tribocorrosion resistance and extremely low cytotoxicity. Moreover, the prepared material has good weldability and is a special metal alloy powder suitable for laser additive manufacturing.
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公开(公告)号：US20230023628A1
公开(公告)日：2023-01-26
申请号：US17874266
申请日：2022-07-26
发明人： Xingchen Yan , Cheng Chang , Qingkun Chu , Changguang Deng , Min Liu
摘要： Disclosed is a biomedical β titanium alloy and a preparation method thereof. Its composition includes: Mo: 9.20-13.50%; Fe: 1.00-3.20%; Zr: 3.50-8.20%; Ta: 0-1.00%; the balance is Ti. The β titanium alloy is suitable for the laser additive manufacturing technology, and the prepared parts have a dense equiaxed grain structure with ultra-low grain size and a small number of columnar grain structures, which produces a fine-grain strengthening effect, and greatly improve the hardness and tribocorrosion performance of the alloy material. Also provided is a method for preparing a non-toxic, low-elasticity, and tribocorrosion resistant biomedical β titanium alloy material. A powder prepared from the above alloy components is subjected to a laser additive manufacturing technology to prepare a corresponding β titanium alloy with high-hardness, good tribocorrosion resistance and extremely low cytotoxicity. Moreover, the prepared material has good weldability and is a special metal alloy powder suitable for laser additive manufacturing.
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公开(公告)号：US12000497B2
公开(公告)日：2024-06-04
申请号：US17253112
申请日：2018-12-06
发明人： Jifu Zhang , Xingchi Chen , Min Liu , Mingjiang Dai , Chunming Deng , Changguang Deng
CPC分类号： F16K3/08 , C25D11/026 , C25D11/06 , F16K3/085 , F16K27/00 , F25B41/20 , F25B9/14 , Y10T137/86823
摘要： Disclosed are a GM type cryogenic refrigerator rotary valve and a preparation method therefor. The GM type cryogenic refrigerator rotary valve comprises an aluminum alloy rotating valve and an alumina ceramic membrane. A valve body of the aluminum alloy rotating valve is provided with a first surface for arranging a working boss and a second surface opposite to the first surface; and a high-pressure hole and a low-pressure groove are both provided in the working boss, and a vent hole is provided in the first surface; the high-pressure hole and the vent hole both penetrate the valve body, and an air chamber is formed on the second surface. The alumina ceramic membrane is plated on surface of the aluminum alloy rotating valve. The preparation method comprises: plating an alumina ceramic membrane on surface of an aluminum alloy rotating valve by means of a micro-arc oxidation process.
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4.发明授权公开(公告)号：US11502320B2
公开(公告)日：2022-11-15
申请号：US17637970
申请日：2020-12-03
发明人： Min Liu , Chen Song , Taikai Liu , Dongdong Dong , Chunming Deng , Kesong Zhou , Yapeng Zhang , Kui Wen , Changguang Deng , Wenyou Ma
IPC分类号： H01M8/1213 , B22F10/366 , H01M8/1286 , B22F12/49 , B33Y10/00 , B33Y80/00 , B22F12/41 , H01M8/12
摘要： Provided are a solid oxide fuel cell/electrolytic cell and electric stack, which relate to the field of cells. A metal support frame is molded in one step or more steps through the additive manufacturing technology. And then a fuel/electrolytic cell functional layer is formed on the metal support frame by means of thermal spraying, tape casting, screen printing or chemical vapor deposition method, and self-sealing of the solid oxide fuel cell/electrolytic cell is realized through a dense structure of electrolyte.
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公开(公告)号：US20210146438A1
公开(公告)日：2021-05-20
申请号：US16982042
申请日：2020-03-23
发明人： Yapeng Zhang , Taikai Liu , Chunming Deng , Yingchun Xie , Ziqian Deng , Min Liu
摘要： The invention discloses a method for in-situ exsolution modification of a surface of a metal material, which comprises steps of : (1) a substrate metal powder are fully mixed with a metal powder for modification to obtain a raw material powder; (2) the raw material powder obtained in step (1) are prepared into a metal material by a preparation method at a non-equilibrium condition; (3) a heat treatment on the metal material prepared in step (2) is performed so that the metal material reaches an equilibrium state; after cooling to room temperature, a doped phase is exsolved to the surface of the metal material to obtain a modified metal material.
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公开(公告)号：US20240254599A1
公开(公告)日：2024-08-01
申请号：US17926993
申请日：2022-09-30
发明人： Xingchen Yan , Cheng Chang , Bingwen Lu , Changguang Deng , Min Liu
IPC分类号： C22C30/00 , B22F9/10 , B23K26/34 , B23K35/30 , B23K103/04
CPC分类号： C22C30/00 , B22F9/10 , B23K26/34 , B23K35/3086 , B23K2103/04
摘要： Disclosed are a high-entropy alloy (HEA) coating and a preparation method and use thereof. Laser cladding is conducted with an HEA powder to obtain the HEA coating, where the HEA is a FeCoCrNiAl0.5Ti0.5 alloy, and the HEA includes the following chemical components in atomic percentage: Al: 10.01% to 12.30%, Co: 18.1% to 22.5%, Cr: 18.05% to 20.12%, Fe: 18.77% to 21.02%, Ni: 19.21% to 20.99%, and Ti: 8.43% to 11.5%. The HEA material with high hardness and wear resistance provided by the present disclosure is suitable for laser cladding of a surface of a precision mold, an offshore component, or a drilling rod. A powder is prepared from the above alloy components and then prepared into a corresponding HEA coating with high strength, high hardness, and prominent wear resistance through laser cladding. The material has prominent weldability and is a special nickel-based HEA material suitable for laser additive manufacturing.
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公开(公告)号：US20210270380A1
公开(公告)日：2021-09-02
申请号：US17253112
申请日：2018-12-06
发明人： Jifu Zhang , Xingchi Chen , Min Liu , Mingjiang Dai , Chunming Deng , Changguang Deng
摘要： Disclosed are a GM type cryogenic refrigerator rotary valve and a preparation method therefor. The GM type cryogenic refrigerator rotary valve comprises an aluminum alloy rotating valve and an alumina ceramic membrane. A valve body of the aluminum alloy rotating valve is provided with a first surface for arranging a working boss and a second surface opposite to the first surface; and a high-pressure hole and a low-pressure groove are both provided in the working boss, and a vent hole is provided in the first surface; the high-pressure hole and the vent hole both penetrate the valve body, and an air chamber is formed on the second surface. The alumina ceramic membrane is plated on surface of the aluminum alloy rotating valve. The preparation method comprises: plating an alumina ceramic membrane on surface of an aluminum alloy rotating valve by means of a micro-arc oxidation process.
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