Alloy toughening method
    5.
    发明授权
    Alloy toughening method 失效
    合金增韧方法

    公开(公告)号:US4927469A

    公开(公告)日:1990-05-22

    申请号:US180623

    申请日:1988-04-11

    摘要: A method of treating a metallurgical object containing metastable featureless regions adversely affecting toughness, comprising heating the object for transforming the regions at least sufficiently out of their metastable state to improve toughness.A method of treating metal particles containing metastable featureless regions which adversely affect toughness when the particles are bonded together to form a metallurigcal object, comprising heating the particles for transforming the regions at least sufficiently out of their metastable state to improve toughness in metallurgical objects formed by bonding the particles together.

    摘要翻译: 一种处理包含不利地影响韧性的亚稳特征区域的冶金物体的方法,包括加热所述物体以使得所述区域至少充分地脱离其亚稳态以改善韧性。 一种处理含有亚稳非特征区域的金属颗粒的方法,当颗粒结合在一起以形成金属物体时,其对韧性有不利影响,包括加热颗粒以至少充分地从其亚稳态转化区域,以改善由 将颗粒粘合在一起。

    Extrusion of aluminum-lithium alloys
    8.
    发明授权
    Extrusion of aluminum-lithium alloys 失效
    铝锂合金挤出

    公开(公告)号:US6113711A

    公开(公告)日:2000-09-05

    申请号:US218676

    申请日:1994-03-28

    IPC分类号: C22F1/04

    CPC分类号: C22F1/04

    摘要: Disclosed is a method of making lithium-containing aluminum base alloy extrusion having at least a section thereof having a low aspect ratio or which is generally axisymmetrical, the extrusions having improved properties in sections thereof having the low aspect ratio or which are axisymmetrical. The method comprises providing a body of a lithium-containing aluminum alloy, pressing a portion of the body which is to form the axisymmetrical or low aspect ratio section through a tortuous path and extruding an axisymmetrical or a low aspect ratio extrusion section. The axisymmetrical or low aspect ratio section of the extrusion has a tensile strength of at least 60 ksi and an ultimate yield strength at least 4.5 ksi greater than the tensile yield strength.

    摘要翻译: 公开了一种制造含有低壁厚比的至少一部分的含锂铝基合金挤出物的方法,或者通常为轴对称的挤压件,其具有低纵横比的部分具有改进的性能,或者是轴对称的。 该方法包括提供一种含锂铝合金体,通过弯曲路径挤压主体的一部分以形成轴对称或低纵横比段,并挤出轴对称或低纵横比的挤出部分。 挤出物的轴对称或低纵横比截面具有至少60ksi的拉伸强度和比拉伸屈服强度大至少4.5ksi的极限屈服强度。