Method for protecting articles from hydrogen absorption by application
of an alumina coating
    1.
    发明授权
    Method for protecting articles from hydrogen absorption by application of an alumina coating 失效
    通过施加氧化铝涂层来保护制品免受氢吸收的方法

    公开(公告)号:US5252362A

    公开(公告)日:1993-10-12

    申请号:US732535

    申请日:1991-07-19

    IPC分类号: C23C26/02 B05D3/02

    CPC分类号: C23C26/02

    摘要: A method is taught for protecting the surface of a metal subject to hydrogen embrittlement from hydrogen absorption. An adherent coating is formed on the surface of the metal substrate by heating the substrate, applying thereto a colloidal alumina suspension in a vaporizable carrier, and further heating said substrate and applied alumina suspension at an elevated temperature to form a protective alumina coating. Dopants may be employed to increase the inhibition of hydrogen diffusion through the alumina coating.

    摘要翻译: 教导了一种保护金属表面遭受氢脆化从氢吸收的方法。 通过加热基材,在可汽化的载体上施加胶体氧化铝悬浮液,并在升高的温度下进一步加热所述基材和涂覆的氧化铝悬浮液以形成保护性氧化铝涂层,在金属基材的表面上形成粘附涂层。 可以使用掺杂剂来增加通过氧化铝涂层的氢扩散的抑制。

    Nondestructive test for coated carbon-carbon composite articles
    7.
    发明授权
    Nondestructive test for coated carbon-carbon composite articles 失效
    涂层碳 - 碳复合材料制品的非破坏性试验

    公开(公告)号:US5317901A

    公开(公告)日:1994-06-07

    申请号:US807420

    申请日:1985-12-10

    申请人: Abdus S. Khan

    发明人: Abdus S. Khan

    IPC分类号: G01M3/12 G01N19/08 G01M3/02

    CPC分类号: G01N19/08 G01M3/12

    摘要: A method for determining whether surface connected, through thickness defects exist in a coated carbon-carbon composite article. The method involves the immersion of the coated article in a low viscosity liquid; if a stream of bubbles rises from the surface of the coating, such bubbles indicate the existence of at least one surface connected, through thickness defect in the coating.

    摘要翻译: 一种用于确定在涂覆的碳 - 碳复合制品中是否存在表面连接的厚度缺陷的方法。 该方法包括将涂覆的物品浸入低粘度液体中; 如果气泡从涂层的表面上升,则这种气泡表示通过涂层中的厚度缺陷连接至少一个表面的存在。

    Temperature stable protective coating over a metallic substrate surface
    8.
    发明授权
    Temperature stable protective coating over a metallic substrate surface 失效
    在金属基材表面上的温度稳定的保护涂层

    公开(公告)号:US06720087B2

    公开(公告)日:2004-04-13

    申请号:US10193278

    申请日:2002-07-12

    IPC分类号: B32B1504

    摘要: The invention describes a temperature-stable protective coating over a metallic substrate surface (1), which coating includes at least one layer of material (4) consisting of MCrAlY, where M represents at least one of the elements selected from the group of materials consisting of Fe, Co and Ni. The invention also describes a production process for this coating. The invention is distinguished by the fact that a multiplicity of local elevations, known as rivets (3), are provided distributed directly over the area of the substrate surface (1) or distributed indirectly over the area of the substrate surface, separated from the substrate surface (1) by means of at least one interlayer (2), which rivets are fixedly joined to the substrate surface (1) or the interlayer (2), that at least one layer of material (4) consisting of MCrAlY is deposited on the substrate surface (1) or interlayer (2) in such a manner that the layer of material (4) consisting of MCrAlY completely surrounds the rivets (3), completely fills regions which lie between adjacent rivets (3) and projects above the rivets (3).

    摘要翻译: 本发明描述了在金属基材表面(1)上的温度稳定的保护涂层,该涂层包括由MCrAlY组成的至少一层材料(4),其中M表示选自以下的材料中的至少一种元素: 的Fe,Co和Ni。 本发明还描述了该涂层的生产方法。 本发明的区别在于,提供了多个局部立面,称为铆钉(3),直接分布在衬底表面(1)的区域上,或间接地分布在与衬底分离的衬底表面的区域上 表面(1)通过至少一个中间层(2),所述铆钉固定地接合到基底表面(1)或中间层(2),至少一层由MCrAlY组成的材料层(4)沉积在 衬底表面(1)或中间层(2),使得由MCrAlY组成的材料层(4)完全包围铆钉(3),完全填充位于相邻铆钉(3)之间并突出在铆钉上方的区域 (3)。

    Oxidation resistant superalloy single crystals
    10.
    发明授权
    Oxidation resistant superalloy single crystals 失效
    耐氧化超合金单晶

    公开(公告)号:US4878965A

    公开(公告)日:1989-11-07

    申请号:US105625

    申请日:1987-10-05

    IPC分类号: C22C19/05

    CPC分类号: C22C19/057

    摘要: Compositions and articles are described which have particular utility in gas turbine engine parts and which can be used at temperatures up to and in excess of 2,000.degree. F. without the usual protective coatings. Compositions are described which can be formed into single crystal articles which are alumina formers upon exposure to oxidation and in which develop an adherent spall resistant alumina scale during oxidation. The adherence and spall resistance of the alumina surface scale results from the presence of a small but critical quantity of zirconium.

    摘要翻译: 描述了在燃气涡轮发动机部件中具有特殊用途的组合物和制品,其可以在高于和超过2000°F的温度下使用,而不需要通常的保护涂层。 描述了可以形成为暴露于氧化后为氧化铝形成物的单晶制品的组合物,并且其中在氧化期间形成附着的抗剥落氧化铝垢。 氧化铝表面规模的粘附和抗剥落性是由于存在少量临界量的锆。