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1. 发明授权

US06656533B2 Low-sulfur article having a platinum-aluminide protective layer, and its preparation 失效
公开(公告)号：US06656533B2
公开(公告)日：2003-12-02
申请号：US10013632
申请日：2001-12-10
申请人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
发明人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
IPC分类号： B05D136
CPC分类号： C23C10/30 , C23C14/02 , C23C14/083 , C23C26/00 , C23C28/321 , C23C28/3455 , C23C30/00 , F01D5/288 , F05D2230/90 , Y02T50/67 , Y02T50/671 , Y10S428/941 , Y10T428/12493 , Y10T428/12535 , Y10T428/1259 , Y10T428/12611 , Y10T428/12618 , Y10T428/1266 , Y10T428/12736 , Y10T428/1275 , Y10T428/12771 , Y10T428/12778 , Y10T428/12875 , Y10T428/12944
摘要： A coated article is prepared by furnishing an nickel-base article substrate having a free sulfur content of more than 0 but less than about 1 part per million by weight. A protective layer is formed at a surface of the article substrate. The protective layer includes a platinum aluminide diffusion coating. The protective layer may be substantially yttrium-free, or have a controlled amount of yttrium. A ceramic layer may overlie the protective layer.

2. 发明授权

US06582772B2 Method for preparing an article with a hafnium-silicon-modified platinum-aluminide bond or environmental coating 失效
标题翻译：制备具有铪硅改性的铂 - 铝化物键或环境涂层的制品的方法
公开(公告)号：US06582772B2
公开(公告)日：2003-06-24
申请号：US10262114
申请日：2002-09-30
申请人： Joseph D. Rigney , Ramgopal Darolia , William S. Walston
发明人： Joseph D. Rigney , Ramgopal Darolia , William S. Walston
IPC分类号： B05D136
CPC分类号： C23C28/321 , C23C10/52 , C23C28/325 , C23C28/345 , C23C28/3455 , F01D5/284 , F01D5/288 , Y02T50/67 , Y02T50/671 , Y10S428/941 , Y10T428/12611 , Y10T428/1275 , Y10T428/12764 , Y10T428/12875 , Y10T428/12944
摘要： An article such as a gas turbine blade or vane has a superalloy substrate, and a coating system deposited on the substrate. The coating system includes a protective layer overlying the substrate, and, optionally, a ceramic thermal barrier coating layer overlying the bond coat. The protective layer has an uppermost layer with a composition including platinum, aluminum, and, in atom percent, from about 0.14 to about 2.8 percent hafnium and from about 2.7 to about 7.0 percent silicon, with the atomic ratio of silicon:hafnium being from about 1.7:1 to about 5.6:1.
摘要翻译：诸如燃气轮机叶片或叶片的物品具有超级合金基底和沉积在基底上的涂层系统。涂层系统包括覆盖在基底上的保护层，以及任选的覆盖粘结涂层的陶瓷热障涂层。保护层具有最上层，其组成包括铂，铝，原子百分比为约0.14至约2.8％的铪和约2.7至约7.0％的硅，硅：铪的原子比为约 1.7：1至约5.6：1。

3. 发明授权

US06551423B1 Preparation of low-sulfur platinum and platinum aluminide layers in thermal barrier coatings 失效
标题翻译：在热障涂层中制备低硫铂和铂铝化物层
公开(公告)号：US06551423B1
公开(公告)日：2003-04-22
申请号：US09149018
申请日：1998-09-08
申请人： Irene T. Spitsberg , William S. Walston , Jon C. Schaeffer
发明人： Irene T. Spitsberg , William S. Walston , Jon C. Schaeffer
IPC分类号： C25D510
CPC分类号： C23C28/321 , C23C26/00 , C23C28/325 , C23C28/345 , C23C28/3455 , Y02T50/67
摘要： A method for preparing a coated nickel-base superalloy article reduces the sulfur content of the surface region of the metallic coating layers to low levels, thereby improving the adhesion of the coating layers to the article. The method includes depositing a first layer of platinum overlying the surface of a substrate, depositing a second layer of aluminum over the platinum, and final desulfurizing the article by heating the article to elevated temperature, preferably in hydrogen, and removing a small amount of material from the surface that was exposed during the step of heating. A ceramic layer may be deposited over the desulfurized article. The article may also be similarly desulfurized at other points in the fabrication procedure.
摘要翻译：制备涂覆的镍基超级合金制品的方法将金属涂层的表面区域的硫含量降低到低水平，从而改善涂层对制品的粘附性。该方法包括沉积覆盖衬底表面的铂的第一层，在铂上沉积第二层铝，并通过将制品加热至升高的温度，优选在氢气中，并最终除去少量的材料，使制品最终脱硫从在加热步骤期间暴露的表面。陶瓷层可以沉积在脱硫制品上。该制品也可以在制造过程中的其它点类似地脱硫。

4. 发明授权

US06444057B1 Compositions and single-crystal articles of hafnium-modified and/or zirconium-modified nickel-base superalloys 有权
标题翻译：铪改性和/或锆改性的镍基超级合金的组合物和单晶制品
公开(公告)号：US06444057B1
公开(公告)日：2002-09-03
申请号：US09318636
申请日：1999-05-26
申请人： Ramgopal Darolia , Jeffrey A. Pfaendtner , William S. Walston
发明人： Ramgopal Darolia , Jeffrey A. Pfaendtner , William S. Walston
IPC分类号： C22C1905
CPC分类号： C22C19/057
摘要： An article is formed of a single crystal having a composition, in weight percent, of a modifying element in an amount of from about 0.2 to about 2.0 percent by weight hafnium, from about 0.1 to about 0.5 percent by weight zirconium, or combinations thereof, and a base alloy composition of from about 4 to about 20 percent cobalt, from about 1 to about 10 percent chromium, from about 5 to about 7 percent aluminum, from 0 to about 2 percent molybdenum, from about 3 to about 8 percent tungsten, from about 4 to about 12 percent tantalum, from 0 to about 2 percent titanium, from 0 to about 8 percent rhenium, from 0 to about 6 percent ruthenium, from 0 to about 1 percent niobium, from 0 to about 0.1 percent carbon, from 0 to about 0.01 percent boron, from 0 to about 0.1 percent yttrium, and balance nickel and incidental impurities.
摘要翻译：一种制品由具有约0.2至约2.0重量％的铪，约0.1至约0.5重量％的锆或其组合的量的改性元素的组合物的重量百分比形成，以及约4至约20％的钴，约1至约10％的铬，约5至约7％的铝，0至约2％的钼，约3至约8％的钨，约4至约12％的钽，0至约2％的钛，0至约8％的铼，0至约6％的钌，0至约1％的铌，0至约0.1％的碳，来自 0至约0.01％的硼，0至约0.1％的钇，并平衡镍和附带的杂质。

5. 发明授权

US06333121B1 Low-sulfur article having a platinum-aluminide protective layer and its preparation 失效
标题翻译：具有铂铝化物保护层的低硫制品及其制备方法
公开(公告)号：US06333121B1
公开(公告)日：2001-12-25
申请号：US09328574
申请日：1999-06-09
申请人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
发明人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
IPC分类号： B32B1504
CPC分类号： C23C10/30 , C23C14/02 , C23C14/083 , C23C26/00 , C23C28/321 , C23C28/3455 , C23C30/00 , F01D5/288 , F05D2230/90 , Y02T50/67 , Y02T50/671 , Y10S428/941 , Y10T428/12493 , Y10T428/12535 , Y10T428/1259 , Y10T428/12611 , Y10T428/12618 , Y10T428/1266 , Y10T428/12736 , Y10T428/1275 , Y10T428/12771 , Y10T428/12778 , Y10T428/12875 , Y10T428/12944
摘要： A coated article is prepared by furnishing an nickel-base article substrate having a free sulfur content of more than 0 but less than about 1 part per million by weight. A protective layer is formed at a surface of the article substrate. The protective layer includes a platinum aluminide diffusion coating. The protective layer may be substantially yttrium-free, or have a controlled amount of yttrium. A ceramic layer may overlie the protective layer.
摘要翻译：通过提供游离硫含量大于0但小于约1重量百分比的镍基制品基材来制备涂覆制品。在制品基板的表面形成有保护层。保护层包括铂铝化物扩散涂层。保护层可以基本上不含钇，或具有受控量的钇。陶瓷层可以覆盖保护层。

6. 发明授权

US5695821A Method for making a coated Ni base superalloy article of improved microstructural stability 失效
标题翻译：制备具有改善的微结构稳定性的涂覆的Ni基超级合金制品的方法
公开(公告)号：US5695821A
公开(公告)日：1997-12-09
申请号：US528273
申请日：1995-09-14
申请人： Wendy H. Murphy , William S. Walston
发明人： Wendy H. Murphy , William S. Walston
IPC分类号： B32B15/01 , C22C19/00 , C22F1/10 , C23C10/02 , C23C10/48 , C23C10/52 , B05D3/00
CPC分类号： C22F1/10 , B32B15/01 , C23C10/02 , C23C10/48 , C23C10/52
摘要： A coated Ni base superalloy article is provided with improved microstructural stability under a coating at least partially diffused into an article surface portion, by avoiding the formation, after exposure to elevated temperatures, of a constituent called SRZ which can affect detrimentally mechanical properties of the article. Such avoidance can result from neutralizing stress in the article surface portion prior to coating, for example by physically removing the stressed portion or by recrystallizing the stressed portion to a fine grained structure which subsequently can be consumed by diffusing elements in a coating method. Also, such avoidance can result from maintaining a Re segregation factor, Re.DELTA., between dendrite cores and interdendritic regions of the alloy cast structure at no greater than about 40%.
摘要翻译：涂覆的Ni基超级合金制品在至少部分扩散到制品表面部分的涂层下具有改善的微结构稳定性，通过避免在暴露于高温之后形成称为SRZ的成分，其可影响制品的机械性能。这样的回避可以由涂覆前的制品表面部分的中和应力引起，例如通过物理去除受压部分或通过将应力部分重结晶成细粒状结构，随后可以通过涂布法中的扩散元件消耗。此外，这种回避可以由在合金铸造结构的枝晶核和枝晶间区域之间维持不大于约40％的Re偏析因子Re DELTA引起。

7. 发明授权

US06797408B2 Low-sulfur article having a platinum-aluminide protective layer, and its preparation 失效
标题翻译：具有铂 - 铝化物保护层的低硫制品及其制备方法
公开(公告)号：US06797408B2
公开(公告)日：2004-09-28
申请号：US10013878
申请日：2001-12-11
申请人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
发明人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
IPC分类号： B32B1504
CPC分类号： C23C10/30 , C23C14/02 , C23C14/083 , C23C26/00 , C23C28/321 , C23C28/3455 , C23C30/00 , F01D5/288 , F05D2230/90 , Y02T50/67 , Y02T50/671 , Y10S428/941 , Y10T428/12493 , Y10T428/12535 , Y10T428/1259 , Y10T428/12611 , Y10T428/12618 , Y10T428/1266 , Y10T428/12736 , Y10T428/1275 , Y10T428/12771 , Y10T428/12778 , Y10T428/12875 , Y10T428/12944
摘要： A coated article is prepared by furnishing an nickel-base article substrate having a free sulfur content of more than 0 but less than about 1 part per million by weight. A protective layer is formed at a surface of the article substrate. The protective layer includes a platinum aluminide diffusion coating. The protective layer may be substantially yttrium-free, or have a controlled amount of yttrium. A ceramic layer may overlie the protective layer.
摘要翻译：通过提供游离硫含量大于0但小于约1重量百分比的镍基制品基材来制备涂覆制品。在制品基板的表面形成有保护层。保护层包括铂铝化物扩散涂层。保护层可以基本上不含钇，或具有受控量的钇。陶瓷层可以覆盖保护层。

8. 发明授权

US06190471B1 Fabrication of superalloy articles having hafnium- or zirconium-enriched protective layer 有权
标题翻译：具有铪或富锆保护层的超级合金制品的制造
公开(公告)号：US06190471B1
公开(公告)日：2001-02-20
申请号：US09318635
申请日：1999-05-26
申请人： Ramgopal Darolia , William S. Walston
发明人： Ramgopal Darolia , William S. Walston
IPC分类号： C22F100
CPC分类号： C23C28/3215 , C22C19/057 , C23C26/00 , C23C28/321 , C23C28/325 , C23C28/345 , C23C28/3455 , Y02T50/67 , Y10T428/12944
摘要： A superalloy article has a protective layer thereon, either in the form of an environmental coating or a the bond coat for a thermal barrier coating system. The protective layer has a high content of hafnium and/or zirconium to improve the adherence and properties of the protective layer. To introduce the hafnium and/or zirconium into the protective layer, the nickel-base alloy substrate, to which the protective layer is applied, is prepared with an initially elevated content of the hafnium and/or zirconium. A conventional bond coat is applied to the substrate. In an interdiffusion treatment performed during coating and/or subsequently, hafnium and/or zirconium diffuses from the substrate into the bond coat.
摘要翻译：超级合金制品在其上具有保护层，其形式为环境涂层或用于热障涂层系统的粘合涂层。保护层具有高含量的铪和/或锆，以改善保护层的粘附性和性能。为了将铪和/或锆引入保护层中，以最初升高的铪和/或锆含量制备了施加有保护层的镍基合金基底。将常规的粘合涂层施加到基底上。在涂覆期间和/或随后的相互扩散处理中，铪和/或锆从基底扩散到粘结层中。

9. 发明授权

US5482789A Nickel base superalloy and article 失效
标题翻译：镍基超合金和制品
公开(公告)号：US5482789A
公开(公告)日：1996-01-09
申请号：US176613
申请日：1994-01-03
申请人： Kevin S. O'Hara , William S. Walston , Earl W. Ross , Ramgopal Darolia
发明人： Kevin S. O'Hara , William S. Walston , Earl W. Ross , Ramgopal Darolia
IPC分类号： C30B29/52 , C22C19/03 , C22C19/05 , C30B11/00 , B32B15/00
CPC分类号： C22C19/057 , C30B11/00 , C30B29/52 , Y10T428/1275 , Y10T428/12875 , Y10T428/12944
摘要： The present invention provides a nickel base superalloy having an improved combination of stress rupture life and microstructural stability with respect to the formation of TCP phases. A unique feature is the specific combination of the content of elements consisting of Al, Ti and W in a second range defined by their sum in a nickel base superalloy having high contents of rhenium, in excess of 1.3 atomic percent (about 4.0 weight percent) to lower the propensity for TCP phase formation and thus render the alloy more stable at high temperatures. The interaction of Ru with the remaining elements to modify the refractory element phase partitioning provides unique capabilities, causing elements to partition to the gamma phase or the gamma prime phase in a reverse direction than normally experienced in Ni-base superalloys. These Ni-base superalloys are termed Ru-containing Reverse Partitioning Ni-base Superalloys. The composition of these Reverse Partitioning Ni-base superalloys is in the range, in atomic percent, of 1.3-3% Re, 2.0-3.7% Ta, 4.0-18.0% Co, 0-0.2% Hf, 0-0.3% C, 0-0.05% B, 0-0.03% Y, 0-2.0% Mo, 1.5-7.2% Cr, 0-0.3% Cb, 12.0-15.0% Al, 0-1.3% Ti, 1.0-2.5% W, in combination with 0.25-4.0 Ru and the balance Ni and incidental impurities.
摘要翻译：本发明提供了一种镍基超级合金，其相对于TCP相的形成具有改进的应力断裂寿命和微结构稳定性的组合。一个独特的特征是由Al，Ti和W组成的元素的含量在第二范围内的特定组合，该第二范围由它们的总和在具有高含量的铼的镍基超级合金中限定，超过1.3原子％（约4.0重量％），以降低TCP相形成的倾向，从而使合金在高温下更稳定。 Ru与剩余元素的相互作用以改变难熔元素相分配提供独特的能力，使得元素在与Ni基超级合金中通常经历的相反方向上分配到γ相或γ'相。这些Ni基超合金称为含Ru反向分选Ni基超合金。这些反向分选的Ni基超级合金的组成在原子百分比范围内在1.3-3％Re，2.0-3.7％Ta，4.0-18.0％Co，0-0.2％Hf，0-0.3％C， 0-0.05％B，0-0.03％Y，0-2.0％Mo，1.5-7.2％Cr，0-0.3％Cb，12.0-15.0％Al，0-1.3％Ti，1.0-2.5％W，组合用0.25-4.0 Ru，余量为Ni和杂质。

10. 发明授权

US06969558B2 Low sulfur article having a platinum-aluminide protective layer, and its preparation 失效
标题翻译：具有铂 - 铝化物保护层的低硫制品及其制备方法
公开(公告)号：US06969558B2
公开(公告)日：2005-11-29
申请号：US10715783
申请日：2003-11-18
申请人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
发明人： William S. Walston , Jon C. Schaeffer , Wendy H. Murphy
IPC分类号： B32B15/04 , C21D1/00 , C22F1/10 , C23C10/30 , C23C14/02 , C23C14/08 , C23C26/00 , C23C28/00 , C23C28/02 , C23C28/04 , C23C30/00 , F01D5/28 , F03B3/12
CPC分类号： C23C10/30 , C23C14/02 , C23C14/083 , C23C26/00 , C23C28/321 , C23C28/3455 , C23C30/00 , F01D5/288 , F05D2230/90 , Y02T50/67 , Y02T50/671 , Y10S428/941 , Y10T428/12493 , Y10T428/12535 , Y10T428/1259 , Y10T428/12611 , Y10T428/12618 , Y10T428/1266 , Y10T428/12736 , Y10T428/1275 , Y10T428/12771 , Y10T428/12778 , Y10T428/12875 , Y10T428/12944
摘要： A coated article is prepared by furnishing an nickel-base article substrate having a free sulfur content of more than 0 but less than about 1 part per million by weight. A protective layer is formed at a surface of the article substrate. The protective layer includes a platinum aluminide diffusion coating. The protective layer may be substantially yttrium-free, or have a controlled amount of yttrium. A ceramic layer may overlie the protective layer.
摘要翻译：通过提供游离硫含量大于0但小于约1重量百分比的镍基制品基材来制备涂覆制品。在制品基板的表面形成有保护层。保护层包括铂铝化物扩散涂层。保护层可以基本上不含钇，或具有受控量的钇。陶瓷层可以覆盖保护层。

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