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公开(公告)号：US5705281A
公开(公告)日：1998-01-06
申请号：US561670
申请日：1995-11-22
CPC分类号： C23C24/106 , B22F1/0003 , B22F7/062 , B23K35/0244 , B23K35/025 , B23K35/304 , C23C24/10 , C23C26/02 , C23C30/00 , Y10T428/12028 , Y10T428/12063
摘要： A nickel-base superalloy article has a coating having a composition, in weight percent, of from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from 0 to about 0.2 percent yttrium, from about 0.001 to about 3 percent boron, from about 1 to about 10 percent silicon, balance nickel and incidental impurities. The coating is preferably applied by mixing together two powders, one with a higher solidus temperature and one with a lower solidus temperature, whose net composition is that of the coating. The powder mixture is compacted with a binder, applied to a surface of the article, and heated to a temperature above the lower solidus temperature.
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2.发明授权Coated nickel-base superalloy article and powder and method useful in its preparation 失效涂层镍基超级合金制品及其制备方法有用
公开(公告)号：US5628814A
公开(公告)日：1997-05-13
申请号：US561671
申请日：1995-11-22
IPC分类号： B22F1/00 , B22F7/06 , B23K35/02 , B23K35/30 , C23C24/10 , C23C26/02 , C23C30/00 , C22C19/05 , C22C19/07
CPC分类号： C23C24/106 , B22F1/0003 , B22F7/062 , B23K35/0244 , B23K35/025 , B23K35/304 , C23C24/10 , C23C26/02 , C23C30/00 , Y10T428/12028 , Y10T428/12063
摘要： A nickel-base superalloy article has a coating having a composition, in weight percent, of from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from 0 to about 0.2 percent yttrium, from about 0.001 to about 3 percent boron, from about 1 to about 10 percent silicon, balance nickel and incidental impurities. The coating is preferably applied by mixing together two powders, one with a higher solidus temperature and one with a lower solidus temperature, whose net composition is that of the coating. The powder mixture is compacted with a binder, applied to a surface of the article, and heated to a temperature above the lower solidus temperature.
摘要翻译： 镍基超合金制品具有涂层，其重量百分比为约10至约20％的钴，约14至约25％的铬，约2至约12％的铝，0至约0.2 百分比钇，约0.001至约3％的硼，约1至约10％的硅，余量为镍和附带的杂质。 涂层优选通过将两个粉末，一个具有较高固相线温度的粉末和一个具有较低固相线温度的粉末混合在一起，其净组成为涂层的组成。 将粉末混合物用粘合剂压实，施加到制品的表面上，并加热至高于较低固相线温度的温度。
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3.发明授权Coated nickel-base superalloy article and powder and method useful in its preparation 失效涂层镍基超级合金制品及其制备方法有用
公开(公告)号：US5561827A
公开(公告)日：1996-10-01
申请号：US365631
申请日：1994-12-28
CPC分类号： C23C24/106 , B22F1/0003 , B22F7/062 , B23K35/0244 , B23K35/025 , B23K35/304 , C23C24/10 , C23C26/02 , C23C30/00 , Y10T428/12028 , Y10T428/12063
摘要： A nickel-base superalloy article has a coating having a composition, in weight percent, of from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from 0 to about 0.2 percent yttrium, from about 0.001 to about 3 percent boron, from about 1 to about 10 percent silicon, balance nickel and incidental impurities. The coating is preferably applied by mixing together two powders, one with a higher solidus temperature and one with a lower solidus temperature, whose net composition is that of the coating. The powder mixture is compacted with a binder, applied to a surface of the article, and heated to a temperature above the lower solidus temperature.
摘要翻译： 镍基超级合金制品具有涂层，其重量百分比为约10至约20％的钴，约14至约25％的铬，约2至约12％的铝，0至约0.2 百分比钇，约0.001至约3％的硼，约1至约10％的硅，余量为镍和附带的杂质。 涂层优选通过将两个粉末，一个具有较高固相线温度的粉末和一个具有较低固相线温度的粉末混合在一起，其净组成为涂层的组成。 将粉末混合物用粘合剂压实，施加到制品的表面上，并加热至高于较低固相线温度的温度。
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公开(公告)号：US5523170A
公开(公告)日：1996-06-04
申请号：US364915
申请日：1994-12-28
CPC分类号： B32B15/01 , B23K35/0244 , B23K35/3033 , C22C1/0433 , C22C19/056 , C22C19/057 , Y10T428/12049 , Y10T428/12056 , Y10T428/12063 , Y10T428/12139
摘要： An article with a high temperature superalloy body having a directionally oriented microsuucture and a structural discontinuity, such as a crack, or surface erosion or wear portion, is repaired, to provide a repaired article, using a mixture of Ni base ahoy powders. One powder includes a careful balance of the temperature depressants Si and B. In the one powder, Si is included in the range of about 0.05-2.2 wt. % to provide about 0.02-1.3 wt. % Si in a repaired portion as bonded with the article. In that same powder, B is include in the range of about 0.2-1.2 wt. % to provide about 0.08-0.7 wt. % in that repaired portion. In the repair method, the repaired portion can be provided, when shorter brazing times are used, with improved mechanical properties by diffusing the brazed alloy and aging the repaired structure in the range of about 1600.degree.-1700.degree. F. for a time in the range of about 1-16 hours.
摘要翻译： 修复具有定向取向微结构的高温超级合金体和具有裂纹或表面侵蚀或磨损部分的结构不连续性的物品，以使用Ni碱金属粉末的混合物提供修复的制品。 一种粉末包括降温剂Si和B的仔细平衡。在一种粉末中，Si包括在约0.05-2.2重量％的范围内。 ％以提供约0.02-1.3重量％ ％Si在与制品粘合的修复部分中。 在相同的粉末中，B包括在约0.2-1.2重量％的范围内。 ％以提供约0.08-0.7重量％ 修理部分的百分比。 在修补方法中，当使用较短的钎焊时间时，可以提供修补部分，通过扩散钎焊合金并将修复的结构老化在约1600°-1700°F的范围内一段时间，具有改进的机械性能 范围约1-16小时。
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5.发明授权Aluminizing process for plasma-sprayed bond coat of a thermal barrier coating system 失效隔热涂层系统的等离子喷涂粘结涂层的镀铝工艺公开(公告)号：US06555179B1
公开(公告)日：2003-04-29
申请号：US09527270
申请日：2000-03-17
IPC分类号： C23C406
CPC分类号： C23C28/3215 , C23C4/18 , C23C10/02 , C23C10/08 , C23C28/321 , C23C28/325 , C23C28/3455
摘要： A thermal barrier coating system and a method for forming the coating system on an article designed for use in a hostile thermal environment. The method is particularly directed to a coating system that includes a plasma-sprayed MCrAlY bond coat on which a thermal-insulating APS ceramic layer is deposited, in which the oxidation resistance of the bond coat and the spallation resistance of the ceramic layer are substantially increased by vapor phase aluminizing the bond coat. The bond coat is deposited to have a surface area ratio of at least 1.4 and a surface roughness of at least 300 &mgr;inch Ra in order to promote the adhesion of the ceramic layer. The bond coat is then overcoat aluminized using a vapor phase process that does not alter the surface area ratio of the bond coat. This process is carried out at relatively low temperatures that promote inward diffusion of aluminum relative to outward diffusion of the bond coat constituents, particularly nickel and other refractory elements. The process conditions also provide sufficient vapor phase activity at the surface of the bond coat that promote aluminum atomic movement through the bond coat.
摘要翻译： 一种热障涂层系统和一种在设计用于恶劣热环境中的物品上形成涂层系统的方法。 该方法特别涉及包括等离子体喷涂的MCrAlY粘结涂层的涂覆体系，其上沉积有绝热的APS陶瓷层，其中粘合涂层的抗氧化性和陶瓷层的抗剥落性大大增加 通过气相渗透粘结涂层。 为了促进陶瓷层的粘附，沉积粘合涂层以使表面积比至少为1.4，表面粗糙度为至少300μm。 然后使用不改变粘结涂层的表面积比的气相方法将粘合涂层进行外涂镀铝。 该过程在相对低的温度下进行，其促进铝相对于粘合涂层成分，特别是镍和其它难熔元素的向外扩散的向内扩散。 工艺条件还在粘合涂层的表面提供足够的气相活性，促进铝原子通过粘结涂层的运动。
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6.发明授权
公开(公告)号：US5236745A
公开(公告)日：1993-08-17
申请号：US759335
申请日：1991-09-13
CPC分类号： C23C28/00 , C23C4/02 , Y02T50/67 , Y10S428/937 , Y10T428/12042 , Y10T428/12056 , Y10T428/12063 , Y10T428/12097 , Y10T428/12153 , Y10T428/12451 , Y10T428/12458 , Y10T428/12535 , Y10T428/12618 , Y10T428/12931 , Y10T428/12944
摘要： An article is coated with a thermal barrier coating system to increase its thermal cyclic spallation life. A single layer bond coating is applied to the surface of the article to a surface roughness in the range of 200 to 600 microinches RA by low pressure plasma spraying of coarse MCrAlY alloy particles into the surface. A metal selected from aluminum and its alloys is applied to the bond coating by aluminiding and is diffused into the bond coating to provide an aluminum-rich bond coating metal outer surface, while substantially retaining the surface roughness of about 2300 to 600 microinches RA. A metal oxide thermal barrier coating layer is then applied onto the aluminum-rich bond coating outer surface.
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公开(公告)号：US5614054A
公开(公告)日：1997-03-25
申请号：US362377
申请日：1994-12-22
申请人： Jim D. Reeves , Mark K. Whiteaker , Peter C. Fry
发明人： Jim D. Reeves , Mark K. Whiteaker , Peter C. Fry
CPC分类号： B08B7/00 , B08B7/0064 , B08B7/0071 , C23G5/00 , Y10T156/1153 , Y10T156/1911 , Y10T29/49726
摘要： A process is provided for removing a thermal barrier coating that has been deposited on the surface of an article. Thermal barrier coatings that can be removed by the process of this invention are generally composed of a ceramic layer that is bonded to the surface of an article by a metallic bond layer. The process generally involves heating the article and its thermal barrier coating to a temperature of at least about 870.degree. C., and exposing the thermal barrier coating to a halogen-containing agent for a duration sufficient to deteriorate the bond between the thermal barrier coating and the article to the extent that the coating separates from the article without damaging the underlying surface. The process can be carried out within various types of heated enclosures, including those within which the halogen-containing agent is introduced in a gaseous state, or those in which the halogen-containing agent can be prepared as a powder mixture that changes to a vapor when heated.
摘要翻译： 提供了用于去除已经沉积在制品表面上的热障涂层的方法。 可以通过本发明的方法除去的热障涂层通常由通过金属粘合层结合到制品表面的陶瓷层组成。 该方法通常涉及将制品及其热障涂层加热到至少约870℃的温度，并将热障涂层暴露于含卤素试剂的持续时间足以使热障涂层和 该制品在涂层与制品分离而不损坏下面的表面的程度上。 该方法可以在各种类型的加热外壳中进行，包括其中含有卤素的试剂以气态导入的外壳，或其中可以制备卤素试剂作为改变成蒸汽的粉末混合物 加热时。
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公开(公告)号：US5403669A
公开(公告)日：1995-04-04
申请号：US218447
申请日：1994-03-28
CPC分类号： C23C28/00 , C23C4/02 , Y02T50/67 , Y10S428/937 , Y10T428/12042 , Y10T428/12056 , Y10T428/12063 , Y10T428/12097 , Y10T428/12153 , Y10T428/12451 , Y10T428/12458 , Y10T428/12535 , Y10T428/12618 , Y10T428/12931 , Y10T428/12944
摘要： An article coated with a thermal barrier coating system for high temperature use, has its thermal cyclic spallation life improved by the application of an aluminide to the outer portion of a bonding coating disposed on a substrate. The bond coating has a surface roughness in the range of about 200-600 microinches Ra prior to application of covering thermal barrier coating.
摘要翻译： 涂覆有用于高温使用的热障涂层系统的制品通过将铝化物施加到设置在基板上的接合涂层的外部部分而具有改善的热循环剥落寿命。 在涂覆覆盖热障涂层之前，粘合涂层的表面粗糙度在约200-600微英寸的范围内。
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公开(公告)号：US5944909A
公开(公告)日：1999-08-31
申请号：US17161
申请日：1998-02-02
申请人： Jim D. Reeves , Howard J. Farr , Warren D. Grossklaus, Jr. , Jerald M. Kauffman , Randall L. Hobbs , Patricia A. Charles , Eric C. Hemsath , Scott A. Welsh
发明人： Jim D. Reeves , Howard J. Farr , Warren D. Grossklaus, Jr. , Jerald M. Kauffman , Randall L. Hobbs , Patricia A. Charles , Eric C. Hemsath , Scott A. Welsh
摘要： A method of removing metallic compositions, such as abradable rub coatings, environmental coatings, bond coats and braze alloys, from the surface of a cobalt-base substrate, such as turbine shrouds and vanes of gas turbine engines. The method is particularly suited for the removal of nickel-base braze alloys and aluminum-containing coatings, the latter of which includes abradable MCrAlY coatings and environmentally-protective diffusion aluminide coatings. The process generally entails contacting such metallic compositions with an aqueous solution containing hydrochloric acid and nitric acid and at a solution temperature of about 130.degree. F. to about 180.degree. F. The solution completely removes nickel-base alloys and aluminum-containing compositions from a cobalt-base substrate without removal or damage to the underlying substrate.
摘要翻译： 从诸如燃气涡轮发动机的涡轮罩和叶片的钴基基板的表面去除金属组合物的方法，例如可磨擦的摩擦涂层，环境涂层，粘合涂层和钎焊合金。 该方法特别适用于去除镍基钎焊合金和含铝涂层，后者包括耐磨的MCrAlY涂层和环保型扩散铝化物涂层。 该方法通常需要使这种金属组合物与含有盐酸和硝酸的水溶液和约130°F至约180°F的溶液温度接触。该溶液从镍基合金和含铝组合物中完全去除 钴基底物，而不去除或损坏底层基底。
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公开(公告)号：US5900102A
公开(公告)日：1999-05-04
申请号：US763790
申请日：1996-12-11
申请人： Jim D. Reeves
发明人： Jim D. Reeves
CPC分类号： C23C10/60 , C23G5/00 , Y10T156/11 , Y10T156/1116 , Y10T29/49726
摘要： A method for repairing a thermal barrier coating on an article designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly suited for the repair of thermal barrier coatings composed of an aluminide bond coat formed on the surface of an article, and an insulating columnar ceramic layer overlaying the bond coat. Processing steps generally include preparing a powder mixture of a halogen-containing activator and an aluminum-containing material, contacting the ceramic layer with the mixture, and then heating the ceramic layer for a duration sufficient to cause the halogen-containing activator to deteriorate the ceramic layer, while the aluminum-containing constituent of the mixture prevents the bond coat from being attacked or otherwise depleted by the halogen-containing activator. A suitable composition for the mixture is about 0.5 to about 1 weight percent of the halogen-containing activator and about 0.5 to about 1 weight percent of the aluminum-containing material, with the balance being an inert diluent.
摘要翻译： 一种用于修复设计用于恶劣热环境（例如燃气涡轮发动机的涡轮机，燃烧器和增压器部件）的制品上的热障涂层的方法。 该方法特别适用于由形成在制品表面上的铝化物粘合涂层和覆盖粘合涂层的绝缘柱状陶瓷层组成的热障涂层的修复。 加工步骤通常包括制备含卤素活化剂和含铝材料的粉末混合物，使陶瓷层与混合物接触，然后加热陶瓷层足够长的时间以使含卤素活化剂劣化陶瓷 而混合物的含铝组分防止粘结涂层被含卤素活化剂的侵蚀或以其它方式耗尽。 用于混合物的合适的组合物为含卤素活化剂的约0.5至约1重量％和含铝材料的约0.5至约1重量％，余量为惰性稀释剂。
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