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    • 57. 发明申请
    • FRICTION WELDING INTERLAYER AND METHOD FOR JOINING GAMMA TITANIUM ALUMINIDE TO STEEL, AND TURBOCHARGER COMPONENTS THEREOF
    • 惯性焊接中间层和将铝质钛酸钡接合到钢中的方法及其涡轮增压器组件
    • WO98045081A1
    • 1998-10-15
    • PCT/US1998/002959
    • 1998-04-03
    • B23K20/12B23K20/16B23K35/00F01D5/02
    • B23K35/005B23K20/12B23K20/129B23K20/16B23K35/004B23K2103/05B23K2103/14B23K2103/18B23K2103/24F01D5/025F05D2220/40Y10T428/12806Y10T428/12958
    • This invention concerns a method, materials, and products involving the joining of titanium aluminide to steel by welding each to an iron-based alloy interlayer or connecting piece. The interlayer can be friction welded to the steel and friction welded to the TiAl. The interlayer alloy can be an iron-based superalloy such as A-286. The friction welding of the TiAl to the interlayer can be done in three steps, each with increased pressure between the parts, with a total time of about 30 seconds. Joint strength of 412 MPa can be achieved for a 25.4 mm weld face diameter. The product can be a turbocharger rotor. The connecting piece (4) is composed of an alloy comprising the following composition in weight percent, Ni, less than or equal to 31.99, Fe, greater than 45.69; preferably, Ni, less than or equal to 30, Fe, greater than 50; and optimally, Ni, less than or equal to 28, Fe, greater than 52. In terms of range, the connecting piece is composed of an alloy comprising the following composition in weight percent, Ni, 20 to 30, Fe, 50 to 60; preferably, Ni, 25 to 27, Fe, 52 to 56; and optimally, Ni, 26, Fe, 54.8. The connecting piece (4) is composed of an alloy comprising a Fe/Ni composition ratio in weight percent of greater than or equal to 1.43, preferably greater than or equal to 1.5; an optimally, greater than or equal to 2. In terms of range, the connecting piece (4) is composed of an alloy comprising a Fe/Ni composition ratio in weight percent of greater than or equal to 1.5 to 2.5, preferably greater than or equal to 2 to 2.2; and optimally, greater than or equal to 2.11.
    • 本发明涉及通过将铁钛合金中间层或连接片焊接在一起的方法,材料和产品,其涉及钛铝化物与钢的接合。 中间层可以摩擦焊接到钢上,摩擦焊接到TiAl上。 中间合金可以是诸如A-286的铁基超级合金。 TiAl与中间层的摩擦焊接可以分三步进行,每个步骤之间的压力增加,总时间约为30秒。 对于25.4 mm的焊接面直径,可实现412 MPa的接头强度。 该产品可以是涡轮增压器转子。 连接件(4)由包含以下重量百分比组成的合金构成,Ni小于或等于31.99,Fe大于45.69; 优选Ni,小于或等于30,Fe大于50; 最佳地,小于等于28的Fe,大于52.在范围方面,连接件由包含以下重量百分比的组成的合金构成,Ni为20〜30,Fe为50〜60 ; 优选Ni,25〜27,Fe,52〜56; 最佳,Ni,26,Fe,54.8。 连接件(4)由包含重量百分比大于或等于1.43,优选大于或等于1.5的Fe / Ni组成比的合金构成; 优选地大于或等于2.在范围方面,连接件(4)由包含Fe / Ni组成比的合金构成,其重量百分比大于或等于1.5至2.5,优选大于或等于 等于2至2.2; 最佳,大于或等于2.11。
    • 59. 发明公开
    • DEPOSITION OF COATINGS ON SUBSTRATES
    • AUFBRINGEN VON BESCHICHTUNGEN AUF基板
    • EP2771500A1
    • 2014-09-03
    • EP12791230.1
    • 2012-10-26
    • Laser Fusion Technologies Ltd.
    • COCKBURN, AndrewO'NEILL, WilliamSPARKES, MartinLUPOI, RoccoBRAY, Matthew
    • C23C24/04C23C24/08B05B7/14B05D1/12B05D3/06
    • B05B3/001B23K26/034B23K26/0823B23K26/083B23K26/342B23K2101/06B23K2103/04B23K2103/24C23C24/04
    • A process and apparatus are disclosed for the deposition of a layer of a first material onto a substrate of a second material. Powder particles of the first material are entrained into a carrier gas flow to form a powder beam directed to impinge on the substrate. This defines a powder beam footprint region at the substrate. The powder beam and the substrate are moved relative to each other to move the powder beam footprint relative to the substrate, thereby to deposit the layer of the first material. A laser is operated to cause direct, local heating of at least one of a forward substrate region and a powder beam footprint region. The laser is controlled to provide a spatial temperature distribution at the powder footprint region of the substrate in which the local temperature of the substrate is in the range 0.5Ts to less than Ts in a volume from the surface of the substrate at least up to a depth of 0.2 mm from the surface of the substrate and not more than 0.25Ts at a depth of 1 mm from the surface of the substrate, wherein Ts is the solidus temperature (in K) of the second material.
    • 公开了一种用于将第一材料层沉积到第二材料的基底上的方法和装置。 第一材料的粉末颗粒被夹带到载气流中以形成指向冲击在基底上的粉末束。 这定义了衬底处的粉末束覆盖区域。 粉末束和基底相对于彼此移动以相对于基底移动粉末束覆盖,从而沉积第一材料的层。 操作激光器以对正向衬底区域和粉末束覆盖区域中的至少一个进行直接的局部加热。 关于在从平面到激光束方向的仰角和激光束覆盖区的中心处的基板的表面与激光束覆盖区的中心一致或相切的平面的激光束方向被限定,并且就锐角方位 从运动方向到激光束方向的角度。 仰角为80°以下,方位角为±60°以下。 在该装置中,提供了围绕粉末束足迹排列的至少三个激光源,激光源之间的角度间隔为120°或更小。