Process for improving the static and dynamic mechanical properties of
(.alpha.+.beta.)-titanium alloys
    2.
    发明授权
    Process for improving the static and dynamic mechanical properties of (.alpha.+.beta.)-titanium alloys 失效
    (α+β) - 钛合金的静态和动态力学性能的改进方法

    公开(公告)号:US4842653A

    公开(公告)日:1989-06-27

    申请号:US67864

    申请日:1987-06-30

    IPC分类号: C22C14/00 C22F1/18

    CPC分类号: C22F1/183

    摘要: The process relates to the improvement of the static and dynamic mechanicalroperties of (.alpha.+.beta.) titanium alloys by thermomechanical treatment, wherein the alloys produced by melting and forging and/or hot isostatic pressing of powders are deformed by more than 60% with simultaneous strain-hardening at a temperature just above the recrystallization temperature of the relevant alloys in one or more steps, with structure stress-relief heatings being performed without complete recrystallization between these individual steps, the shaped part is then tempered for 2 to 4 min near the transus of the alloy, quenched and then aged at temperatures in the range of from 400.degree. to 600.degree. C.

    摘要翻译: 该方法涉及通过热机械处理改善(α+β)钛合金的静态和动态力学性能,其中通过熔融和锻造和/或热等静压压制得的合金粉末变形60%以上,同时 在一个或多个步骤中在相关合金的再结晶温度刚刚高于应变硬化的条件下进行应变硬化,结构应力消除加热在这些单独的步骤之间进行而没有完全重结晶,然后将成形部分在接近的温度下回火2至4分钟 合金的转变,淬火然后在400℃至600℃的温度下老化。

    Ceramic heat-insulating layers with club-structure
    3.
    发明授权
    Ceramic heat-insulating layers with club-structure 失效
    具有球杆结构的陶瓷绝热层

    公开(公告)号:US6063435A

    公开(公告)日:2000-05-16

    申请号:US058228

    申请日:1998-04-10

    摘要: The present invention relates to a process for vapor-depositing zirconium dioxide on ceramic or metallic substrates, and the heat-insulating layers obtainable by such process.In particular, the invention relates to a process for vapor-depositing zirconium dioxide, optionally doped with rare-earth metal oxides or mixtures of such oxides, on ceramic or metallic substrates in a range of substrate temperatures of from 600 to 1550.degree. C. while the substrate is continuously rotated at a speed in the range of from 1 to 300 rpm, characterized in that, following the nucleation phase, the rotational speed and the temperature are adjusted to a range defined by the equations: ##EQU1## where T represents the substrate temperature in .degree. K, and .omega. represents the rotational speed of the substrate in rpm, wherein the rotational speed is varied continuously or discontinuously, or alternatively in alternating senses of rotation.

    摘要翻译: 本发明涉及一种在陶瓷或金属基材上气相沉积二氧化锆的方法,以及通过这种方法可获得的绝热层。 特别地,本发明涉及一种在600至1550℃的衬底温度范围内在陶瓷或金属衬底上气相沉积二氧化锆的方法,其中任选地掺杂有稀土金属氧化物或这些氧化物的混合物,同时 基板以1〜300rpm的速度连续旋转,其特征在于,在成核相位之后,将转速和温度调整到由以下等式定义的范围:其中T表示基板温度 DEG K,ω表示基板的转速,以rpm为单位,其中转速连续地或不连续地变化,或者交替地以旋转的方式变化。

    Thermomechanical process for treating titanium aluminides based on Ti.sub.3
    4.
    发明授权
    Thermomechanical process for treating titanium aluminides based on Ti.sub.3 失效
    基于TI3AL处理钛酸铝的热处理工艺

    公开(公告)号:US5185045A

    公开(公告)日:1993-02-09

    申请号:US735958

    申请日:1991-07-25

    IPC分类号: C22C1/04 C22F1/18

    CPC分类号: C22F1/183 C22C1/0458

    摘要: A process as described for treating Ti.sub.3 Al-based alloys comprising, inddition to titanium and aluminum as .alpha.-phase-stabilizing element, niobium and further elements stabilizing the .beta.-phase in an amount of from 20 to 30% by weight, wherein the further elements stabilizing the .beta. phase are present in an amount of at least 4% by weight by(a) preparing the alloys by melting or via the powder-metallurgical route,(b) deforming at a temperature within the (.alpha..sub.2 +.beta.)-phase area by more than 60% in one or more steps with stress-relief annealing without complete recrystallization effected between these steps,(c) solution annealing the formed part for from 5 minutes to 120 minutes below the .beta.-transus temperature of the alloy,(d) quenching, and(e) subsequent aging/stress-relief annealing at temperatures within the range of from 500.degree. for 75.degree. C. for from 0.5 to 24 hours.

    摘要翻译: 所描述的用于处理Ti 3 Al基合金的方法,除了钛和铝作为α-相稳定元素之外,还包含以20-30%重量的量将所述β-相稳定化的其它元素,其中进一步 通过(a)通过熔化或通过粉末冶金途径制备合金,(b)在(α2+β)内的温度下变形,稳定β相的元素以至少4重量%的量存在, 在这些步骤之间,在一个或多个步骤中,具有应力消除退火而没有完全重结晶的一个或多个阶段的相面积大于60%;(c)在合金的β-转变温度以下5分钟至120分钟内对所形成的部分进行固溶退火, (d)淬火,和(e)在75℃范围内的温度范围内随后的老化/应力消除退火0.5至24小时。

    Process and device for producing compressed mouldings from loose or
sintered metal powder
    5.
    发明授权
    Process and device for producing compressed mouldings from loose or sintered metal powder 失效
    从松散或烧结金属粉末生产压缩模制品的工艺和装置

    公开(公告)号:US4599215A

    公开(公告)日:1986-07-08

    申请号:US674596

    申请日:1984-11-26

    IPC分类号: B22F3/14 B22F3/15 B22F1/00

    CPC分类号: B22F3/15

    摘要: A hermetically sealed capsule (10) containing degased metal powder (11) is embedded in a soft metal flow die (20). Subsequently the flow die (20) is compressed in a cavity block, thereby compressing the metal powder (11) by the hydrostatic pressure of the flow die and simultaneously shaping the said powder. This results in the reforming of the structure right down to the interior of the particles with compression of up to 100%. The shaping process can be aided by moulding dies (17, 18) embedded in the flow die (10) around the capsule (10) at a distance from each other and, when closed, forming a cavity, the shape of which deviates from that of the original shape of the capsule (10). The capsule (10) containing the metal powder is formed during closure of the moulding cavity.

    摘要翻译: 将含有脱金属粉末(11)的气密密封胶囊(10)嵌入软金属流动模具(20)中。 随后,将流动模具(20)在空腔模块中压缩,由此通过流动模具的流体静压力压缩金属粉末(11),同时使所述粉末成形。 这导致结构的重整直到压缩至100%的颗粒内部。 成形过程可以通过在胶囊(10)周围相互间隔一定距离嵌入在流动模具(10)中的模具(17,18)来帮助,并且当关闭时形成空腔,其形状偏离 的胶囊(10)的原始形状。 在模腔闭合期间形成含有金属粉末的胶囊(10)。