SOFT MAGNETIC COMPOSITE MATERIALS AND METHODS AND POWDERS FOR PRODUCING THE SAME

    公开(公告)号:US20210142933A1

    公开(公告)日:2021-05-13

    申请号:US17094431

    申请日:2020-11-10

    摘要: A powder including a plurality of particulates, each particulate including a soft magnetic metallic core coated with a continuous dielectric coating having a thickness selected from a range of 100 nanometers to 100 micrometers. The particulates have a mean particle size selected from a range of 100 nanometers to 250 micrometers. Methods for forming the powder are disclosed. A soft magnetic composite component includes a soft magnetic material in a dielectric matrix, wherein (i) the soft magnetic material comprises a plurality of particulates comprising metallic cores, (ii) each metallic core is coated by a continuous dielectric coating covering >90% of a surface area of the metallic core, (iii) the metallic cores are electrically isolated from each other, and (iv) the dielectric coatings of adjacent metallic cores are consolidated together. Methods for formation of the soft magnetic component by additive manufacturing and hot isostatic pressing are disclosed.

    Titanium powder production apparatus and method

    公开(公告)号:US10583492B2

    公开(公告)日:2020-03-10

    申请号:US15588993

    申请日:2017-05-08

    IPC分类号: B22F9/08 C22C1/04

    摘要: A method and apparatus for producing titanium metal powder from a melt. The apparatus includes an atomization chamber having an inner wall that is coated with or formed entirely of a titanium alloy that is the same as the titanium metal powder to prevent contamination of titanium metal powder therein. The inner surfaces of some or all components of the apparatus in a flow path following the atomization chamber may also be coated with or formed entirely of the titanium alloy or CP-Ti.

    High strength, high fracture toughness structural alloy
    4.
    发明授权
    High strength, high fracture toughness structural alloy 失效
    高强度,高断裂韧性结构合金

    公开(公告)号:US5087415A

    公开(公告)日:1992-02-11

    申请号:US475773

    申请日:1990-02-06

    IPC分类号: C22C38/52

    CPC分类号: C22C38/52

    摘要: A high strength, high fracture toughness structural steel alloy consisting essentially of, in weight percent, about______________________________________ C 0.2-0.33 Cr 2-4 Ni 10.5-15 Mo 0.75-1.75 Co 8-17 Fe Balance ______________________________________ and an article made therefrom are disclosed. The alloy is an age-hardenable martensitic steel alloy whcih provides a unique combination of tensile strength and fracture toughness. The alloy provides excellent mechanical properties when hardened by vacuum heat treatment with inert gas cooling and has a low ductile-to-brittle transition temperature.

    Galling resistant austenitic stainless steel alloy
    5.
    发明授权
    Galling resistant austenitic stainless steel alloy 失效
    耐磨奥氏体不锈钢合金

    公开(公告)号:US4814140A

    公开(公告)日:1989-03-21

    申请号:US62899

    申请日:1987-06-16

    IPC分类号: C22C38/58 C22C38/40

    CPC分类号: C22C38/58

    摘要: A galling and corrosion resistant austenitic stainless steel alloy is disclosed containing in weight percent about______________________________________ w/o ______________________________________ Carbon 0.25 Max. Manganese 2.0-7.0 Silicon 1.0-5.0 Phosphorus 0.05 Max. Sulfur 0.3 Max. Chromium 12-20 Nickel 2.0-7.75 Molybdenum 3 Max. Copper 3 Max. Nitrogen 0.35 Max. ______________________________________ the balance being essentially iron. To attain its unique properties the alloy must be balanced so as to contain no more than about 10% ferrite. The % Ni+1/2(% Mn) must not be less than 5.5% and not greater than 1/8[11(% Si)+42], and the sum of the (% C+% N) is at least 0.15%. Care must be taken that when the amount of silicon present is less than about 2.25%, at least about 4.0% manganese is present.

    摘要翻译: 公开了一种耐磨和耐腐蚀的奥氏体不锈钢合金,其重量百分比约为-w / o-碳0.25最大。 - 锰2.0-7.0 - 硅1.0-5.0 - 磷0.05最大 - 硫0.3最大 - 铬12-20 - 镍2.0-7.75 - 钼3最大 - 铜3最大 - 氮0.35最大 - 平衡本质上是铁。 为了获得其独特的性能,合金必须平衡,以便含有不超过约10%的铁素体。 %Ni + 1/2(%Mn)不得小于5.5%且不大于1/8 [11(%Si)+42]],(%C +%N)之和至少为0.15 %。 必须注意,当硅的存在量小于约2.25%时,存在至少约4.0%的锰。

    Free machining, cold formable austenitic stainless steel
    6.
    发明授权
    Free machining, cold formable austenitic stainless steel 失效
    自由加工,冷成型奥氏体不锈钢

    公开(公告)号:US4444588A

    公开(公告)日:1984-04-24

    申请号:US342848

    申请日:1982-01-26

    摘要: A free machining cold formable austenitic stainless steel alloy and articles made therefrom which contains in weight percent about______________________________________ w/o ______________________________________ Carbon 0.15 Max. Manganese 4 Max. Chromium 14-20 Nickel 8-12 Copper 1.0-2.4 Nitrogen 0.2 Max. Free Machining 0.02-0.25 Additive ______________________________________ with the balance iron and preferably no more than 2 w/o manganese, 1 w/o silicon, 0.04 w/o phosphorus, 0.08 w/o nitrogen. Also, the alloy preferably contains 1.4-2.0 w/o copper and the free machining additive is 0.08-0.14 w/o sulfur.

    摘要翻译: 自由加工冷成型奥氏体不锈钢合金及其制成的制品,其重量百分比含有约-w / o-碳 - 0.15碳 -Manganese 4最大 -Chrom 14-20 -Nickel 8-12 -Copper 1.0-2.4 - 氮0.2最大 - 自由加工0.02-0.25-添加 - 余量为铁,优选不超过2w / o锰,1w / o硅,0.04w / o磷,0.08w / o氮。 此外,合金优选含有1.4-2.0w / o的铜,并且游离的机加工剂为0.08-0.14w / o的硫。

    Corrosion resistant austenitic alloy
    7.
    发明授权
    Corrosion resistant austenitic alloy 失效
    耐腐蚀奥氏体合金

    公开(公告)号:US4371394A

    公开(公告)日:1983-02-01

    申请号:US209056

    申请日:1980-11-21

    IPC分类号: C22C38/58

    CPC分类号: C22C38/58

    摘要: A corrosion resistant austenitic stainless steel alloy and articles made therefrom consisting essentially in weight percent of______________________________________ (w/o) ______________________________________ C 0.03-0.1 Mn 4-11 Si 0.6 Max. Cr 20-23 Ni 14-18 Mo 4.8-5.6 B 0.01 Max. Ce + La 0.4 Max. Al 0.1 Max. C + N 0.23 Min. ______________________________________ in which nitrogen ranges from a minimum of 0.15 w/o to no more than the amount that can be retained in solid solution, the balance being essentially iron, and the elements being balanced so that cold rolled annealed specimens prepared with a crevice and tested in accordance with ASTM G48-76 in 10 w/o FeCl.sub.3 .multidot.6H.sub.2 O at 50.degree. C. for 72 hours have a weight loss of less than 0.3 gram. An embodiment that is particularly well suited for making autogeneously welded articles, e.g. tubing, for uses requiring exposure to brackish water consists essentially in weight percent of:______________________________________ (w/o) ______________________________________ C 0.06-0.08 Mn 4-6 Si 0.6 Max. Cr 20.5-21.5 Ni 14.5-15.5 Mo 4.8-5.4 B 0.0015-0.0035 Al 0.5 Max. N 0.20-0.25 ______________________________________ in which the balance is essentially iron.

    摘要翻译: 耐腐蚀奥氏体不锈钢合金及其制成的制品基本上以 - (w / o)-C 0.03-0.1 -Mn 4-11 -Si 0.6的最大重量百分比组成。 -Cr 20-23 -Ni 14-18 -Mo 4.8-5.6 -B 0.01最大 -Ce + La 0.4最大 -Al 0.1最大 -C + N 0.23 Min。 - 其中氮范围从0.15w / o至不超过固体溶液中保留的量,余量基本上是铁,并且元件是平衡的,以便冷缝退火样品用缝隙和试验制备 根据ASTM G48-76在10w / o FeCl 3 x 6H 2 O中在50℃下72小时的重量损失小于0.3克。 特别适合于制造自动焊接制品的实施例,例如, 用于需要暴露于咸水的用途的管道基本上以重量百分比表示: - (w / o)-C 0.06-0.08-Mn 4-6 -Si 0.6最大。 -Cr 20.5-21.5 -Ni 14.5-15.5 -Mo 4.8-5.4 -B 0.0015-0.0035 -Al 0.5最大 -N 0.20-0.25 - 其中天平基本上是铁。

    Case-hardening alloy steel and case-hardened article made therefrom
    8.
    发明授权
    Case-hardening alloy steel and case-hardened article made therefrom 失效
    表面硬化合金钢和由其制成的表面硬化制品

    公开(公告)号:US4157258A

    公开(公告)日:1979-06-05

    申请号:US935003

    申请日:1978-08-18

    IPC分类号: C22C38/44 C22C38/42

    CPC分类号: C22C38/44

    摘要: A carburizing alloy steel and case-hardened articles made therefrom, having high core impact strength and fracture toughness combined with high case hot hardness and temper resistance at 400.degree. F. (204.degree. C.), containing 0.06-0.16% carbon, 0.2-0.7% manganese, 0.5-1.5% silicon, 0.5-1.5% chromium, 1.5-3% nickel, 1-4% copper, 2.5-4% molybdenum, up to 0.4% vanadium, and the balance iron and incidental impurities. The alloy may also contain small amounts of phosphorus, sulfur, nitrogen, aluminum, columbium, titanium, zirconium, and calcium.

    摘要翻译: 一种渗碳合金钢和由其制成的表面硬化制品,其具有高的铁心冲击强度和断裂韧性以及在400°F(204℃)下具有高的硬度和回火韧性,其含有0.06-0.16%的碳,0.2- 0.7%锰,0.5-1.5%硅,0.5-1.5%铬,1.5-3%镍,1-4%铜,2.5-4%钼,至多0.4%钒,余量为铁和杂质。 该合金还可以含有少量的磷,硫,氮,铝,铌,钛,锆和钙。