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公开(公告)号：US20220275481A1
公开(公告)日：2022-09-01
申请号：US17632553
申请日：2020-08-28
摘要： A hot stamped steel includes a base material that is formed of steel, a plated layer that is formed on a surface of the base material, and a phosphate coating that is formed on a surface of the plated layer; chemical composition of the plated layer contains 20.00 to 45.00 mass % of Al, 10.00 to 45.00 mass % of Fe, 4.50 to 15.00 mass % of Mg, 0.10 to 3.00 mass % of Si, 0.05 to 3.00 mass % of Ca, 0 to 0.50 mass % of Sb, 0 to 0.50 mass % of Pb, 0 to 1.00 mass % of Cu, 0 to 1.00 mass % of Sn, 0 to 1.00 mass % of Ti, 0 to 0.50 mass % of Sr, 0 to 1.00 mass % of Cr, 0 to 1.00 mass % of Ni, and 0 to 1.00 mass % of Mn with a remainder of Zn and impurities; the phosphate coating consists of zinc phosphate crystals containing 5.0 to 50.0 mass % of Mg and 0.5 to 5.0 mass % of Ca; and the adhesion amount of the phosphate coating per one surface is in a range of 0.1 to 10.0 g/m2.
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公开(公告)号：US20220259704A1
公开(公告)日：2022-08-18
申请号：US17626748
申请日：2019-11-21
发明人： Minxia LI , Arvid ESPEDAL , Nagaraj V. GOVINDARAJ , Ole Johannes EMMERHOFF , Guo PINGCHUANG , Jinghui SU , Hongping XU
摘要： An aluminium alloy including 1.0-1.5 wt % Mn, up to 0.1 wt % Mg, up to 0.3 wt % Si, up to 0.3 wt % Fe, up to 0.1 wt % Cu, up to 0.25 wt % Cr, up to 0.1 wt % Ni, up to 0.3 wt % Zn, up to 0.1% Ti, up to 0.2 Zr. The allow also includes impurities, each no more than 0.05 wt. % and wherein the total of impurities is no more than 0.15 wt. %, with the balance being aluminum.
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公开(公告)号：US20220235438A1
公开(公告)日：2022-07-28
申请号：US17646317
申请日：2021-12-29
发明人： Cyril RUCHTI , Xavier BERDAT , Frédéric KOHLER
IPC分类号： C22C30/02 , G04B31/008 , C22C21/10 , G04B43/00
摘要： An assembly (10), in particular fora timepiece, including a rotary wheel and a bearing, like a jewel (20), the rotary wheel being provided with at least one pivot (17) including at least partly a non-magnetic material, preferably entirely, the bearing including a face (6) provided with a hole (8) formed in the body of the bearing and with a functional geometry at the entrance of the hole (8), wherein the functional geometry has the shape of a cone (12), and wherein the non-magnetic material of the pivot (17) includes an alloy to be chosen from materials containing copper, materials containing palladium or materials containing aluminium.
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公开(公告)号：US11286545B2
公开(公告)日：2022-03-29
申请号：US16962299
申请日：2019-01-17
发明人： Akiko Tomio , Masaki Ueyama , Yusaku Tomio
摘要： A Cr—Ni alloy having high yield strength and high resistance to sulfuric acid general corrosion at a high temperature of 250° C. is provided. The Cr—Ni alloy has a chemical composition consisting of, in mass %, Si: 0.01 to 0.50%, Mn: 0.01 to 1.00%, Cr: 21.0 to 27.0%, Ni: 40.0 to less than 50.0%, Mo: 4.5 to less than 9.0%, W: 2.0 to 6.0%, Cu: more than 2.0% and not more than 6.0%, Co: 0.01 to 2.00%, one or two kinds selected from the group consisting of Ca and Mg: 0.001 to 0.010% in total, sol. Al: 0.005 to 0.200%, N: 0.01 to 0.20%, and the balance being Fe and impurities. The dislocation density in the Cr—Ni alloy satisfies the following Formula (1): 8.00×1014≤ρ≤2.50×1015+1.40×1014×[Cu+Co] (1)
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公开(公告)号：US11244779B2
公开(公告)日：2022-02-08
申请号：US16823997
申请日：2020-03-19
申请人： TDK Corporation
发明人： Mariko Fujiwara , Makoto Iwasaki
摘要： The object of the present invention is to provide an R-T-B based permanent magnet having a wide temperature range suitable for sintering. The R-T-B based permanent magnet in which R is one or more rare earth elements, T is a combination of Fe and Co, and B is boron. The R-T-B based permanent magnet comprises M, O, C, and N. M is three or more selected from Cu, Ga, Mn, Zr, and Al; and at least comprises Cu, Ga, and Zr. A content of each component is within a predetermined range. The R-T-B based permanent magnet includes main phase grains made of R2T14B compound and grain boundaries existing between main phase grains. The grain boundaries include a two-grain boundary which is a grain boundary formed between two adjacent main phase grains, and a Zr—B compound is included in the two-grain boundary.
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公开(公告)号：US20220016705A1
公开(公告)日：2022-01-20
申请号：US16955355
申请日：2019-04-22
申请人： SOOCHOW UNIVERSITY
发明人： ZHIXIN XIA , WENJUAN JIANG , TUO SHI , LEI CHEN , JIACHAO XU
摘要： Provided is a FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method thereof, in percent by weight, the composition of the high-entropy alloy powder is: chromium 17-20%; copper 22-25%; titanium 16-19%; vanadium 17-20%; and ferrum 19-22%, wherein by utilizing the solid solution effect of alloying elements such as Ti, V and Cu of the high-entropy alloy, it can effectively alleviate the differences in thermal expansion coefficient, melting point, elastic modulus, etc. of the tungsten/steel or tungsten/copper heterogeneous interface, can reduce the residual stress level at the heterogeneous interface during the laser melting deposition manufacturing process and avoid the precipitation of Laves phase, and can meet the manufacturing requirements of tungsten/steel and tungsten/copper heterogeneous components for fusion reactors.
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公开(公告)号：US20210296012A1
公开(公告)日：2021-09-23
申请号：US16475181
申请日：2017-08-29
申请人： Andras KOVACS , David Brown , Fredrik EK
发明人： Andras KOVACS , David Brown , Fredrik EK
摘要： A method and apparatus for energy production comprising providing reactive material containing, at least, an exothermic double electron capture capable isotope and supplying pair-formation energy to at least part of the reactive material to form at least one irreversible double electron capture capable nuclei-pair to produce a net exothermic reaction is disclosed. The reactive material may comprise a metallic alloy. A method and apparatus for energy production comprising heating a three or more element metallic alloy in a chemically inert atmosphere to initiate and/or sustain an exothermic reaction between at least two of the metallic elements of the alloy is herein disclosed. The pressure at the surface of the metallic alloy may be maintained below 1000 atm. The reaction may be initiated, maintained or re-initiated by temperature cycling within a target temperature range. The heat from the reaction may be converted to electric energy by means of a stacked thermophotovoltaic arrangement, comprising a hot surface, a first stage photovoltaic element, a photoemissive LED and a second stage photovoltaic element.
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公开(公告)号：US20210260704A1
公开(公告)日：2021-08-26
申请号：US17184155
申请日：2021-02-24
发明人： Jianxun HU , Justin BROWN , Peiyong CHEN , Chanho LEE , Xuesong FAN , John William BOHLING , Carl D. LUNDIN , Peter LIAW , Zhenzhen YU , Abdelrahman ABDELMOTAGALY
摘要： A multi-material component joined by a high entropy alloy is provided, as well as methods
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公开(公告)号：US10951074B2
公开(公告)日：2021-03-16
申请号：US15437474
申请日：2017-02-21
IPC分类号： H01F1/055 , B22F9/04 , B22F3/16 , B22F3/24 , H02K1/02 , C22C19/07 , C22C1/02 , B22D7/00 , B22D25/06 , C22C30/02 , C22F1/10 , H02K1/27 , H02K7/00 , H02K7/18 , H01F1/059
摘要： A permanent magnet is expressed by a composition formula: RpFeqMrCutCo100-p-q-r-t. The magnet comprises a metal structure including a main phase having a Th2Zn17 crystal phase and a grain boundary phase. The main phase includes a cell phase having the Th2Zn17 crystal phase and a Cu-rich phase. A section including a c-axis of the Th2Zn17 crystal phase has a first region in the crystal grain and a second region in the crystal grain, the first region is provided in the cell phase divided by the Cu-rich phase, the second region is provided within a range of not less than 50 nm nor more than 200 nm from the grain boundary phase in a direction perpendicular to an extension direction of the grain boundary phase, and a difference between a Cu concentration of the first region and a Cu concentration of the second region is 0.5 atomic percent or less.
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公开(公告)号：US10945817B1
公开(公告)日：2021-03-16
申请号：US16178035
申请日：2018-11-01
申请人： Ormco Corporation
IPC分类号： A61C7/14 , A61C7/20 , C22C30/02 , A61C7/18 , C22C30/00 , C22C19/03 , C22C19/00 , A61C7/28 , A61C7/22 , A61B17/00 , A61C7/30
摘要： A method for altering an orthodontic archwire of a unitary piece of shape memory alloy having a composition and generally uniformly formed properties along its length to different stiffness profiles along the length of the archwire. In one embodiment, the method includes determining a stress profile for teeth at a location. The method may include calculating a force the archwire is to produce on the teeth to satisfy the determined stress profile and determining an altered stiffness of a section of the archwire based on the calculated force. The method may include changing the composition of the section based on the determined altered stiffness. The method may include determining a load for teeth and calculating a force the archwire is to produce on the teeth to satisfy the determined load.
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