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1. 发明授权

US5087305A Fatigue crack resistant nickel base superalloy 失效
标题翻译：耐疲劳耐镍镍基超级合金
公开(公告)号：US5087305A
公开(公告)日：1992-02-11
申请号：US215189
申请日：1988-07-05
申请人： Keh-Minn Chang
发明人： Keh-Minn Chang
IPC分类号： C22C19/05 , C22F1/10
CPC分类号： C22C19/056 , C22C19/055 , C22F1/10
摘要： An alloy is disclosed which has been found to lend itself particularly well to thermomechanical processing. The alloy is strengthened by precipitates similar to those of Inconel 718 but the alloy matrix of the composition is a nickel-chromium-cobalt matrix rather than the nickel-chromium-iron matrix of the Inconel alloy. Also the alloy has grains of average diameter of 35 .mu.m or larger. The fatigue resistance, tensile strength and the rupture strength of the alloy is improved to a remarkable degree as a result of the thermomechanical processing. The thermomechanical processing is carried out below the recrystallization temperature to prevent nucleation of fine grains. The residual strains from the thermomechanical processing or cold working provides the remarkably favorable combination of alloy properties which are found.
摘要翻译：公开了一种合金，已经发现其特别适用于热机械加工。该合金通过与Inconel 718类似的沉淀强化，但组合物的合金基体是镍 - 铬 - 钴基体而不是铬镍铁合金的镍 - 铬 - 铁基质。合金还具有平均直径35μm或更大的晶粒。由于热机械加工，合金的耐疲劳性，拉伸强度和断裂强度提高到显着程度。在再结晶温度以下进行热机械加工，以防止细晶粒的成核。来自热机械加工或冷加工的残余应变提供了发现的合金性能的显着有利的组合。

2. 发明授权

US4764226A Ni.sub.3 A1 alloy of improved ductility based on iron and niobium substituent 失效
标题翻译：基于铁和铌取代基的改善延性的Ni3Al合金
公开(公告)号：US4764226A
公开(公告)日：1988-08-16
申请号：US783722
申请日：1985-10-03
申请人： Shyh-Chin Huang , Keh-Minn Chang , Alan I. Taub
发明人： Shyh-Chin Huang , Keh-Minn Chang , Alan I. Taub
IPC分类号： C22C19/00 , C22C19/03
CPC分类号： C22C19/007
摘要： A melt is provided having the formula(Ni.sub.0.76 Al.sub.0.24-x Nb.sub.x).sub.89.75 Fe.sub.10 B.sub.0.25.The melt is rapidly solidified as ribbon and the ribbon is annealed at about 1100.degree. C. Desirable properties are found when x is between 0.02 and 0.10.
摘要翻译：提供具有式（Ni 0.76Al0.24-xNbx）89.75Fe10B0.25的熔体。熔体快速凝固成带状，并且带在约1100℃下退火。当x在0.02和0.10之间时，发现理想的性质。

3. 发明授权

US4650519A Nickel aluminide compositions 失效
标题翻译：镍铝组合物
公开(公告)号：US4650519A
公开(公告)日：1987-03-17
申请号：US783716
申请日：1985-10-03
申请人： Keh-Minn Chang , Shyh-Chin Huang , Alan I. Taub
发明人： Keh-Minn Chang , Shyh-Chin Huang , Alan I. Taub
IPC分类号： B22F3/15 , B22F9/00 , C22C1/04 , C22C19/00 , C22C32/00
CPC分类号： C22C1/0433 , B22F3/15 , B22F9/008 , C22C19/007
摘要： A metal body having high tensile strength and ductility at temperatures over 1000.degree. F. is provided. The body is prepared by hot isostatic pressing of powder formed by atomization of a melt of an alloy. The alloy composition is according to the formula(Ni.sub.1-x-z Co.sub.x Al.sub.z).sub.100-y B.sub.ywherein x is at least 0.05, andwherein y is 0.10 to 2.0, andwherein z is 0.23 to 0.25.The consolidated body is suitable for machining to final dimensions. To relieve stresses developed from the machining the body may be annealed for a couple of hours at temperatures between 800.degree. C. and 1200.degree. C.
摘要翻译：提供了在超过1000°F的温度下具有高拉伸强度和延展性的金属体。通过由合金熔体雾化形成的粉末进行热等静压制备本体。合金组成按照式（Ni1-x-zCoxAlz）100-yBy，其中x为至少0.05，并且其中y为0.10-2.0，并且其中z为0.23至0.25。整体适用于最终尺寸的加工。为了减轻由机械加工产生的应力，可以在800℃至1200℃的温度下退火几个小时。

4. 发明授权

US4642139A Rapidly solidified nickel aluminide of improved stoichiometry and ductilization and method 失效
标题翻译：快速固化的镍化铝，改善了化学计量和管道和方法
公开(公告)号：US4642139A
公开(公告)日：1987-02-10
申请号：US646877
申请日：1984-09-04
申请人： Alan I. Taub , Shyh-Chin Huang , Keh-Minn Chang
发明人： Alan I. Taub , Shyh-Chin Huang , Keh-Minn Chang
IPC分类号： C22F1/10 , C22C1/02 , C22C19/03 , C22C45/04
CPC分类号： C22C1/023 , C22C45/04
摘要： It has been found that tri-nickel aluminide compositions are quite sensitive to the ratio of nickel to aluminum in their ability to receive boron as a dopant and that compositions which are relatively poor in the aluminum component can be doped more effectively with boron. Further, it has been found for the nickel aluminides which have lower concentrations of aluminum that the percentage of boron which can be added to the composition to effectively increase the strength of the alloys is favored by the lower aluminum ratio so that higher concentrations of boron are addable. The compositions which result have significant strength properties based on tensile tests of the compositions.
摘要翻译：已经发现，三镍铝化合物组合物在接受硼作为掺杂剂的能力方面对镍与铝的比例非常敏感，并且可以更有效地用硼掺杂铝成分中相对较差的组合物。此外，已经发现，具有较低浓度的铝的铝酸镍可以通过较低的铝比有利于可以添加到组合物中以有效提高合金的强度的硼的百分比，使得较高浓度的硼是可添加所得到的组合物基于组合物的拉伸试验具有显着的强度性能。

5. 发明授权

US4743316A Rapidly solidified zirconium modified nickel aluminide of improved strength 失效
标题翻译：快速固化的锆改性镍铝化合物具有改善的强度
公开(公告)号：US4743316A
公开(公告)日：1988-05-10
申请号：US783724
申请日：1985-10-03
申请人： Alan I. Taub , Keh-Minn Chang , Shyh-Chin Huang
发明人： Alan I. Taub , Keh-Minn Chang , Shyh-Chin Huang
IPC分类号： C22C19/00
CPC分类号： C22C19/007
摘要： It had been found previously that tri-nickel aluminide compositions are quite sensitive to the ratio of nickel to aluminum in their ability to receive boron as a dopant. It has now been found that compositions which are relatively poor in the aluminum component can be doped more effectively with a combination of boron and zirconium. It has been found for the nickel aluminides which have lower concentrations of aluminum that the percent of zirconium and boron which can be added to the composition to effectively increase the strength of the alloys is favored by the lower aluminum ratio. The compositions which result are found to have significant strength properties not only at room temperature but at elevated temperatures based on tensile tests of the compositions.
摘要翻译：以前已经发现，三镍铝化合物对于接受硼作为掺杂剂的能力对镍与铝的比率非常敏感。现在已经发现，可以通过硼和锆的组合更有效地掺杂铝组分相对较差的组合物。已经发现，对于具有较低浓度的铝的铝酸镍，可以通过较低的铝比例来增加可以添加到组合物中以有效地增加合金的强度的锆和硼的百分比。发现所得的组合物不仅在室温下而且在基于组合物的拉伸试验的高温下具有显着的强度特性。

6. 发明授权

US4661156A Nickel aluminide base compositions consolidated from powder 失效
标题翻译：从粉末中固化的铝化镍基础组合物
公开(公告)号：US4661156A
公开(公告)日：1987-04-28
申请号：US783718
申请日：1985-10-03
申请人： Keh-Minn Chang , Alan I. Taub , Shyh-Chin Huang
发明人： Keh-Minn Chang , Alan I. Taub , Shyh-Chin Huang
IPC分类号： B22F3/15 , C22C1/04 , C22C19/00 , C22C19/03 , B22F3/00
CPC分类号： C22C1/0433 , B22F3/15 , C22C1/0491 , C22C19/007
摘要： A metal body having high tensile strength and ductility at temperatures over 1000.degree. F. is provided. The body is prepared by hot isostatic pressing of powder formed by atomization of a melt of an alloy. The alloy composition base is according to the formula:(Ni.sub.1-x Al.sub.x).sub.100-y B.sub.ywhere x is between 0.23 and 0.25, and where y is 0.1 to 2.0.The consolidated body is suitable for machining and may be annealed for a couple of hours at temperatures between 800.degree. C. and 1200.degree. C. following such machining.
摘要翻译：提供了在超过1000°F的温度下具有高拉伸强度和延展性的金属体。通过由合金熔体雾化形成的粉末的热等静压制备本体。合金组成基础为：（Ni1-xAlx）100-yBy，其中x为0.23至0.25，y为0.1至2.0。固结体适用于加工，并可在这种机械加工后在800℃至1200℃的温度下退火数小时。

7. 发明授权

US4609528A Tri-nickel aluminide compositions ductile at hot-short temperatures 失效
标题翻译：三镍铝化合物组合物在热短温下延展
公开(公告)号：US4609528A
公开(公告)日：1986-09-02
申请号：US783582
申请日：1985-10-03
申请人： Keh-Minn Chang , Shyh-Chin Huang , Alan I. Taub
发明人： Keh-Minn Chang , Shyh-Chin Huang , Alan I. Taub
IPC分类号： C22F1/10 , B22F3/16 , C22C1/00 , C22C1/02 , C22C1/04 , C22C19/03 , C22F1/00 , B22F1/02
CPC分类号： C22C19/03 , B22F3/16 , C22C1/0433
摘要： A method is taught for rendering a boron-doped tri-nickel aluminide resistant to mechanical failure while at intermediate temperatures of 600.degree. C. to 800.degree. C. due to a hot-short phenomena. The method involves incorporating between 0.05 and 0.30 of cobalt in the composition according to the expression(Ni.sub.1-x-z Co.sub.x Al.sub.z).sub.100-y B.sub.y.The concentration of aluminum, z, is between 0.23 and 0.25 and the concentration of boron, y, is between 0.2 and 1.50 atomic percent. The composition is formed into a melt and the melt is rapidly solidified by atomization and consolidated. The consolidation may be simultaneous with the rapid solidification, as in spray forming, or sequential by atomization to a powder and consolidation of the powder by HIPping. The consolidated body is cold worked to increase the resistance of the body to failure at intermediate temperatures and may be annealed following the cold working.
摘要翻译：教导了一种方法，用于在600℃至800℃的中等温度下，由于热缺陷现象而使耐受机械故障的硼掺杂三镍铝化物。该方法包括根据表达式（Ni1-x-zCoxAlz）100-yBy在组合物中加入0.05至0.30的钴。铝的浓度z在0.23〜0.25之间，硼的浓度y在0.2〜1.50原子％之间。将组合物形成熔体并通过雾化快速固化熔融并固化。固化可以与快速凝固同时进行，如在喷雾形成中，或者通过雾化到粉末并通过HIPping固结粉末。固结体被冷加工以增加身体在中间温度下的失效的阻力，并且可以在冷加工之后进行退火。

8. 发明授权

US4478791A Method for imparting strength and ductility to intermetallic phases 失效
标题翻译：赋予金属间相强度和延展性的方法
公开(公告)号：US4478791A
公开(公告)日：1984-10-23
申请号：US444932
申请日：1982-11-29
申请人： Shyh-Chin Huang , Keh-Minn Chang , Alan I. Taub
发明人： Shyh-Chin Huang , Keh-Minn Chang , Alan I. Taub
IPC分类号： C22C1/00 , C22C1/02 , C22C19/03 , C22C19/05 , C22C19/00
CPC分类号： C22C1/02
摘要： A method for achieving both improved high strength and improved ductility in intermediate phases is provided. The method, briefly stated, comprises the steps of providing a melt whose composition substantially corresponds to that of a preselected intermetallic phase having a crystal structure of the L1.sub.2 type, such as nickel aluminide, modified with from about 0.01 to 2.5 atomic percent boron, and rapidly solidifying the melt at a cooling rate of at least about 10.sup.3 .degree. C./second to form a solid body, the principal phase of which is of the L1.sub.2 type crystal structure in either its ordered or disordered state.
摘要翻译：提供了一种在中间相中实现改进的高强度和改善延展性的方法。简单地说，该方法包括以下步骤：提供熔体，其组成基本上对应于具有L12型晶体结构的预选的金属间化合物相，例如用约0.01至2.5原子百分比的硼改性的镍铝化物，以及以至少约103℃/秒的冷却速度快速固化熔体，以形成固体，其主相为有序或无序状态的L12型晶体结构。

9. 发明授权

US5143563A Creep, stress rupture and hold-time fatigue crack resistant alloys 失效
标题翻译：蠕变，应力破裂和保持时间疲劳抗裂合金
公开(公告)号：US5143563A
公开(公告)日：1992-09-01
申请号：US417098
申请日：1989-10-04
申请人： Daniel D. Krueger , Jeffrey F. Wessels , Keh-Minn Chang
发明人： Daniel D. Krueger , Jeffrey F. Wessels , Keh-Minn Chang
IPC分类号： C22C19/05 , C22F1/00 , C22F1/10
CPC分类号： C22F1/10 , C22C19/056
摘要： Improved, creep-stress rupture and hold-time fatigue resistant nickel base alloys for use at elevated temperatures are disclosed. The alloys consists essentially of, in weight percent, 10.9 to 12.9% Co; 11.8 to 13.8% Cr; 4.6 to 5.6% Mo; 2.1 to 3.1% Al; 4.4 to 5.4% Ti; 1.1 to 2.1% Nb; 0.005 to 0.025% B; 0.01 to 0.06% C; 0 to 0.6% Zr; 0.1 to 0.3% Hf; balance nickel. The article is characterized by a microstructure having an average grain size of from about 20 to 40 microns, with carbides, borides, and 0.3 to 0.4 micron-sized coarse gamma prime located at the grain boundaries, and 30 nanometer-sized fine gamma prime uniformly distributed throughout the grains. The alloys are suitable for use as turbine disks in gas turbine engines of the type used in jet engines, or for use as rim sections of dual alloy turbine disks for advanced turbine engines and are capable of operation at temperatures up to about 1500.degree. F. A method for achieving the desired properties in such turbine disks is also disclosed.

10. 发明授权

US4985201A Generator rotor steels 失效
标题翻译：发电机转子钢
公开(公告)号：US4985201A
公开(公告)日：1991-01-15
申请号：US451914
申请日：1989-12-18
申请人： Keh-Minn Chang , Ioannis P. Vasatis
发明人： Keh-Minn Chang , Ioannis P. Vasatis
IPC分类号： C22C38/44 , C22C38/46
CPC分类号： C22C38/44 , C22C38/46
摘要： A low-alloy steel suitable for use in generator rotors and having a combination of good strength and impact energy with a high magnetic permeability is disclosed. The low-alloy steels are comprised of in weight percent; about 3.5 to 5.25 percent nickel, about 0.75 to 2.0, percent chromium, about 0.3 to 0.8 percent molybdenum, about 0.05 to 0.15 percent vanadium, about 0.1 to 0.28 percent carbon, about 0.03 to 0.1 percent niobium or titanium, and the balance substantially iron, wherein nickel, chromium, and carbon additions are balanced.
摘要翻译：公开了一种适用于发电机转子并具有良好的强度和冲击能与高磁导率组合的低合金钢。低合金钢由重量百分比组成; 约3.5至5.25％的镍，约0.75至2.0％的铬，约0.3至0.8％的钼，约0.05至0.15％的钒，约0.1至0.28％的碳，约0.03至0.1％的铌或钛，余量基本上为铁其中镍，铬和碳添加物是平衡的。

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