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    • 2. 发明授权
    • ReCrNi alloy coating for diffusion barrier
    • ReCrNi合金涂层用于扩散屏障
    • US07192655B2
    • 2007-03-20
    • US10494022
    • 2002-09-13
    • Toshio NaritaShigenari HayashiTakayuki YoshiokaHiroshi Yakuwa
    • Toshio NaritaShigenari HayashiTakayuki YoshiokaHiroshi Yakuwa
    • B32B15/00
    • C23C28/321C23C28/325C23C28/345C23C30/00Y02T50/67Y10T428/12Y10T428/12493Y10T428/12771Y10T428/12847Y10T428/12854Y10T428/12937
    • Disclosed is a ReCrNi alloy coating for diffusion barrier, such as a high-temperature equipment member, consisting essentially of a ternary alloy and having, except for inevitable impurities, an atomic composition of 20% to 80% Re, an atomic composition of 20% to 60% Cr, and an atomic composition of 5% to 40% Ni. Even if the alloy coating for diffusion barrier includes a diffusion layer containing at least one of the group consisting of Al, Si and Cr, a desired alloy composition of the alloy coating for diffusion barrier can be assured by a surface coating process and diffused components from the substrate while substantially preventing the diffusion of the elements of the diffusion layer during a homogenizing heat treatment. The alloy coating for diffusion barrier may include a Re-containing-alloy stress relief layer inserted between the film and the substrate. The ReCrNi alloy coating can suppress the deterioration of the substrate and the coating layer due to the reaction therebetween to provide an extended life span of the equipment member.
    • 公开了用于扩散阻挡层的ReCrNi合金涂层,例如高温设备构件,其基本上由三元合金组成,除了不可避免的杂质外,其原子组成为20%至80%Re,原子组成为20% 至60%的Cr,原子组成为5%至40%的Ni。 即使用于扩散阻挡层的合金涂层包括含有由Al,Si和Cr组成的组中的至少一种的扩散层,也可以通过表面涂覆工艺和扩散组分来确保用于扩散阻挡层的合金涂层的所需合金组成 同时基本上防止在均质化热处理期间扩散层的元件的扩散。 用于扩散阻挡层的合金涂层可以包括插入在膜和衬底之间的Re含合金应力消除层。 ReCrNi合金涂层可以抑制由于它们之间的反应导致的基板和涂层的劣化,从而延长设备的使用寿命。
    • 6. 发明授权
    • Method of forming high temperature corrosion resistant film
    • 高温耐腐蚀膜成型方法
    • US07378134B2
    • 2008-05-27
    • US10544743
    • 2004-02-09
    • Toshio NaritaShigenari Hayashi
    • Toshio NaritaShigenari Hayashi
    • C23C10/42
    • C23C10/34C23C10/06C23C24/00
    • Disclosed is a method of forming a high-temperature corrosion-resistant film, which comprises placing a container containing a film-forming fine powder and a target member capable of being heated by an electric current heating process, in an atmosphere-controllable treatment chamber, and floating the fine powder and subjecting the target member to the electric current heating process to allow vapor of the fine powder generated by the heating to be diffused into the target member from a surface thereof so as to form a diffusion film layer, and allow the floated fine powder to be attached onto the surface so as to form a fine-powder film layer on the diffusion film layer. The target member may be masked to form the film only in a non-masked region of the target member. Alternatively, a specific region of the target member may be cooled at a temperature precluding the film formation to prevent the film from being formed in the specific region. The method of the present invention makes it possible to form a high-temperature corrosion-resistant film having an “intended configuration” in a “desired region” of a heat-resistant material at “low cost” with “high productivity”.
    • 公开了形成耐高温耐腐蚀膜的方法,其包括将含有成膜细粉末的容器和能够通过电流加热过程加热的目标构件放置在气氛可控处理室中, 并漂浮微细粉末并使目标构件进行电流加热处理,以使得由加热产生的细粉末的蒸气从其表面扩散到目标构件中,以形成扩散膜层,并允许 漂浮的细粉末附着在表面上,以在扩散膜层上形成细粉末膜层。 目标构件可以被掩蔽以仅在目标构件的非掩蔽区域中形成膜。 或者,可以在防止成膜的温度下冷却目标构件的特定区域,以防止在特定区域中形成膜。 本发明的方法使得可以以“高生产率”以“低成本”形成耐热材料的“所需区域”中具有“预期构造”的高温耐腐蚀膜。
    • 8. 发明申请
    • Heat-resistant ti alloy material excellent in resistance to corrosion at high temperature and to oxidation
    • 耐高温钛合金材料耐高温腐蚀和氧化
    • US20050244668A1
    • 2005-11-03
    • US10509028
    • 2003-03-25
    • Toshio NaritaTakumi Nishimoto
    • Toshio NaritaTakumi Nishimoto
    • C22F1/18C22C14/00C23C10/16C23C10/28C23C10/32C23C10/48C23C10/56C23C10/58C23C28/00B32B15/00C23C16/00
    • C23C28/021C22C14/00C23C10/16C23C10/56C23C28/028Y10T428/12458Y10T428/12743Y10T428/12806
    • Disclosed is a heat-resistant Ti alloy material excellent in high-temperature corrosion resistance and oxidation resistance, which comprises a base made of a heat-resistant Ti alloy and a surface layer formed on the surface of the base. The surface layer has a multilayer structure including an inner layer and an outer layer. The inner layer has three coexistent phases consisting of a β phase, a γ phase and a Laves phase in the phase diagram of a Ti—Al—Cr based alloy, and the outer layer is made of an Al—Ti—Cr based alloy having an Al concentration of 50 atomic % or more. The heat-resistant Ti alloy material is produced by subjecting a substrate made of a heat-resistant Ti alloy to a Cr diffusion treatment at a temperature within a β single-phase region in the phase diagram of a Ti—Al—Cr based alloy, precipitating a γ phase and a Laves phase from the β phase during a cooling process to form the inner layer with three coexistent phases consisting of the β, γ and Laves phases, and then subjecting the obtained product to an Al diffusion treatment to form the outer layer. The heat-resistant Ti alloy material can prevent the diffusion of Al from the outer layer to the base and the diffusion of elements of the base to the outer layer while forming a protective Al2O3 film in a self-repairing manner, to provide excellent high-temperature corrosion resistance and oxidation resistance to the heat-resistant Ti alloy base.
    • 本发明公开了一种耐高温耐氧化性优异的耐热性Ti合金材料,其特征在于,包括由耐热Ti合金构成的基体和形成在基材表面的表面层。 表面层具有包括内层和外层的多层结构。 内层在Ti-Al-Cr基合金的相图中具有由β相,γ相和Laves相组成的三个共存相,外层由Al-Ti-Cr基合金制成,其具有 50原子%以上的Al浓度。 耐热性Ti合金材料通过在Ti-Al-Cr系合金的相图中,使耐热Ti合金的基板在β单相区域内的温度下进行Cr扩散处理而制造, 在冷却过程中从β相沉淀出γ相和Laves相,以形成由β,γ和Laves相组成的三个共存相的内层,然后将所得产物进行Al扩散处理以形成外层 层。 耐热Ti合金材料可以防止Al从外层扩散到基底,并且可以在形成保护性Al 2 O 3的同时将基体的元素扩散到外层 以自修复方式,以耐热Ti合金基材提供优异的耐高温耐腐蚀性和抗氧化性。
    • 10. 发明申请
    • Method for forming re coating film or re-cr alloy coating film through electroplating
    • 通过电镀形成再涂膜或再Cr合金涂膜的方法
    • US20050126922A1
    • 2005-06-16
    • US10501720
    • 2003-01-17
    • Toshio NaritaShigenari HayashiTakayuki YoshiokaHiroshi YakuwaMichiaki Souma
    • Toshio NaritaShigenari HayashiTakayuki YoshiokaHiroshi YakuwaMichiaki Souma
    • C25D3/56
    • C25D3/56
    • Disclosed is a method for forming: a Re—Cr alloy film consisting of Re in the range of greater than 0 (zero) to less than 98% by atomic composition, and the remainder being Cr except inevitable impurities; a Re-based film consisting of 98% or more, by atomic composition, of Re, with the remainder being Cr and inevitable impurities; or a Re—Cr—Ni alloy film consisting of Re in the range of 50 to less than 98% by atomic composition, Cr in the range of 2 to less than 45% by atomic composition, and the remainder being Ni except inevitable impurities. The method comprises performing an electroplating process using an electroplating bath containing an aqueous solution which includes a perrhenate ion and a chromium (III) ion. The present invention allows a Re—Cr alloy, Re-based or Re—Cr—Ni alloy film usable as a corrosion-resistant alloy coating for a high-temperature component or the like to be formed through an electroplating process using an aqueous solution, so as to provide heat/corrosion resistances to the component, even if it has a complicated shape, in a simplified manner at a low cost.
    • 公开了一种用于形成由Re组成的Re-Cr合金膜的方法,所述Re在大于0(零)至小于98%的范围内的原子组成,其余为除了不可避免的杂质之外的Cr; 由Re原子组成为98%以上的Re基膜,其余为Cr和不可避免的杂质; 或由Re组成的Re-Cr-Ni合金膜的原子组成为50〜小于98%的范围,Cr为2〜小于45原子的组成,余量为Ni,不包括不可避免的杂质。 该方法包括使用含有包含高铼酸根离子和铬(III)离子的水溶液的电镀浴进行电镀工艺。 本发明允许通过使用水溶液的电镀工艺形成可用作高温组分等的耐腐蚀合金涂层的Re-Cr合金,Re基或Re-Cr-Ni合金膜, 以便以简单的方式以低成本为零件提供耐热/耐腐蚀性,即使其具有复杂的形状。