Fine grain niobium sheet via ingot metallurgy
    14.
    发明授权
    Fine grain niobium sheet via ingot metallurgy 有权
    通过锭冶金制造细晶铌片

    公开(公告)号:US07666243B2

    公开(公告)日:2010-02-23

    申请号:US10974519

    申请日:2004-10-27

    IPC分类号: C22B9/20

    摘要: A method of making a silicon-containing alloy of niobium that includes: A) forming a blend comprising niobium powder and silicon powder and pressing the blend to form pressed blend; B) attaching the pressed blend to an electrode comprising niobium; C) melting the electrode and pressed blend under vacuum arc remelting conditions, such that the blend mixes with the melted electrode; D) cooling the melted electrode to form an alloy ingot; and E) applying thermo-mechanical processing steps to the alloy ingot to form a wrought product. The method provides a fully recrystalized niobium wrought product with a grain size finer that ASTM 5, that can be used to make deep drawn cups and sputtering targets.

    摘要翻译: 一种制造铌含硅合金的方法,其包括:A)形成包含铌粉末和硅粉末的共混物,并压制所述共混物以形成压制共混物; B)将压制的共混物连接到包含铌的电极; C)在真空电弧重熔条件下熔化电极和压制共混物,使得共混物与熔融电极混合; D)冷却熔融的电极以形成合金锭; 和E)将热机械加工步骤应用于合金锭以形成锻造产品。 该方法提供了一种完全重结晶的铌锻造产品,其具有ASTM 5的粒度更细,可用于制备深拉杯和溅射靶。