Clad structural member with NbTiAl alloy cladding and niobium base metal
core
    52.
    发明授权
    Clad structural member with NbTiAl alloy cladding and niobium base metal core 失效
    NbTiAl合金包层和铌基金属芯的包层结构件

    公开(公告)号:US5318859A

    公开(公告)日:1994-06-07

    申请号:US953701

    申请日:1992-09-30

    IPC分类号: B32B15/01 C22C47/00 C22C1/09

    摘要: Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance -Ti.sub.31-48 -Al.sub.8-21.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.

    摘要翻译: 提供了具有较高密度,更强的增强铌基合金嵌入较低密度的复合结构,较低强度的铌基包层合金。 包层优选为根据以下表达式的具有铌和钛基的合金:Nbbalance-Ti31-48-Al8-21。 加强件可以是较高强度,较高温度的铌基增强合金的板,片或棒的形式。 在基质和强化物中都存在相同的晶体形式,特别是体心立方晶体形式。

    Composite structure with NBTIA1CRHF alloy matrix and niobium base metal
reinforcement
    53.
    发明授权
    Composite structure with NBTIA1CRHF alloy matrix and niobium base metal reinforcement 失效
    复合结构与NBTIA1CRHF合金基体和铌基金属增强

    公开(公告)号:US5304427A

    公开(公告)日:1994-04-19

    申请号:US907949

    申请日:1992-07-02

    IPC分类号: C22C27/02 C22C49/00 B22F1/00

    摘要: Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the expression:Nb--Ti.sub.27-40.5 --Al.sub.4.5-10.5 --Hf.sub.1.5-5.5 Cr.sub.4.5-8.5 V.sub.0-6,where each metal of the metal/metal composite has a body centered cubic crystal structure, andwherein the ratio of concentrations of Ti to Nb (Ti/Nb) is greater than or equal (.gtoreq.) to 0.5, andwherein the maximum concentration of the Hf+V+Al+Cr additives is less than or equal (.ltoreq.) to the expression:16.5+(5.times.Ti/Nb),and the reinforcement may be in the form of strands of the higher strength, higher temperature niobium based alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.

    摘要翻译: 提供了具有较高密度的复合结构,嵌入较低密度的较强的增强铌基合金,较低强度的铌基合金。 该基体优选为根据以下表达式的Nb和Ti的合金:Nb-Ti27-40.5-Al4.5-10.5-Hf1.5-5.5Cr4.5-8.5V0-6,其中金属/ 金属复合体具有体心立方晶体结构,其中Ti与Nb(Ti / Nb)的浓度比例大于等于(> =)〜0.5,其中Hf + V + Al + Cr添加剂与16.5+(5 * Ti / Nb)的表达式小于或等于(<=),并且增强材料可以是较高强度,较高温度的铌基合金的股线形式。 在基质和强化物中都存在相同的晶体形式,特别是体心立方晶体形式。

    Molybdenum substrate for high power density tungsten focal track X-ray
targets
    57.
    发明授权
    Molybdenum substrate for high power density tungsten focal track X-ray targets 失效
    钼基板用于高功率密度钨焦轨迹X射线靶

    公开(公告)号:US4298816A

    公开(公告)日:1981-11-03

    申请号:US109163

    申请日:1980-01-02

    IPC分类号: H01J35/10

    CPC分类号: H01J35/108 H01J2235/084

    摘要: Improved rotary targets for X-ray tubes are provided which include a substrate body of a high strength molybdenum alloy, an intermediate ductile layer of pure molybdenum or a ductile molybdenum alloy affixed to the top surface thereof and an electron receiving layer made of a tungsten-based alloy affixed to at least a portion of the intermediate layer.

    摘要翻译: 提供了用于X射线管的改进的旋转靶,其包括固定在其顶表面上的高强度钼合金的基体,纯钼的中间延性层或延性钼合金,以及由钨 - 固定在中间层的至少一部分上。

    Directionally solidified eutectic .gamma.+.beta. nickel-base superalloys
    59.
    发明授权
    Directionally solidified eutectic .gamma.+.beta. nickel-base superalloys 失效
    定向凝固的共晶{65 {30 {62 {0镍基超级合金

    公开(公告)号:US4045255A

    公开(公告)日:1977-08-30

    申请号:US691936

    申请日:1976-06-01

    申请人: Melvin R. Jackson

    发明人: Melvin R. Jackson

    IPC分类号: C30B21/02 C22C19/03

    CPC分类号: C30B21/02

    摘要: A directionally solidified multivariant eutectic .gamma.+.beta. nickel-base superalloy casting having improved high temperature strength and oxidation resistance properties is provided comprising a two phase eutectic structure containing, on a weight percent basis, 5.0-15.0 tungsten, 8.5-14.5 aluminum, 0.0-35.0 cobalt and the balance being nickel. Embedded within the .gamma. phase nickel-base matrix are aligned eutectic .beta. phase (primarily (Ni,Co)Al reinforcing lamellae.

    摘要翻译: 提供了具有改进的高温强度和抗氧化性能的定向凝固的多变量共晶γ+β镍基超级合金铸件,其包括两相共晶结构,其以重量百分比计含有5.0-15.0钨,8.5-14.5铝, 35.0钴,余量为镍。 嵌入γ相内的镍基基体是对齐的共晶β相(主要是(Ni,Co)Al增强层。