公开(公告)号：US4662951A

公开(公告)日：1987-05-05

申请号：US565489

申请日：1983-12-27

申请人： Edgar E. Brown ,  Robert W. Hatala

发明人： Edgar E. Brown ,  Robert W. Hatala

IPC分类号： C21D8/00 ,  C22F1/00 ,  C22F1/10

CPC分类号： C21D8/005 ,  C22F1/10

摘要： Heat treatments are described which improve subsequent HIP treatment results of superalloy articles. The heat treatments substantially eliminate certain low melting phases which otherwise would cause problems relating to gas entrapment during a HIP process. The articles are heated to a temperature near but below the intended HIP temperature for a period of time sufficient to reduce the low melting phase.

摘要翻译： 描述了热处理，其改善了超合金制品的后续HIP处理结果。 热处理基本上消除了某些低熔点相，否则在HIP工艺过程中会引起与气体截留有关的问题。 将制品加热至接近但低于预期HIP温度的温度足以降低低熔点相的时间。

公开(公告)号：US4842652A

公开(公告)日：1989-06-27

申请号：US122865

申请日：1987-11-19

申请人： Michael P. Smith ,  Edgar E. Brown ,  Martin J. Blackburn

发明人： Michael P. Smith ,  Edgar E. Brown ,  Martin J. Blackburn

IPC分类号： C22F1/00 ,  C22F1/18 ,  F02B75/02

CPC分类号： C22F1/186 ,  F02B2075/027

摘要： Processing of Ti-6246 for improved mechanical properties including fracture toughness and low cycle fatigue. The process includes beta forging, sub beta transus solutionizing, controlled cooling and precipitation treating.

摘要翻译： Ti-6246的加工改善机械性能，包括断裂韧性和低循环疲劳。 该过程包括β锻造，次β转化溶液，控制冷却和沉淀处理。

公开(公告)号：US4888253A

公开(公告)日：1989-12-19

申请号：US814695

申请日：1985-12-30

申请人： Sherman M. Snyder ,  Edgar E. Brown

发明人： Sherman M. Snyder ,  Edgar E. Brown

IPC分类号： B22D29/00 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10

CPC分类号： C22F1/10 ,  C22C19/055 ,  Y10T428/12944

摘要： A nickel base superalloy composition useful in the cast+HIP+heat treated condition is described. Articles having the invention composition have properties which are significantly better than similarly processed IN718 articles. This is achieved by modifying the chromium, columbium, and titanium contents in the alloy composition, relative to the IN718 composition.

摘要翻译： 描述了可用于铸造+ HIP +热处理条件的镍基超合金组合物。 具有本发明组合物的制品具有明显优于类似处理的IN718制品的性能。 这通过相对于IN718组合物改变合金组合物中的铬，铌和钛的含量来实现。

公开(公告)号：US4750944A

公开(公告)日：1988-06-14

申请号：US814704

申请日：1985-12-30

申请人： Sherman M. Snyder ,  Edgar E. Brown

发明人： Sherman M. Snyder ,  Edgar E. Brown

IPC分类号： C22C19/00 ,  C22C19/05 ,  C22F1/10

CPC分类号： C22C19/055 ,  C22F1/10

摘要： A nickel base superalloy composition useful in the cast+HIP+heat treated condition is described. Articles having the invention composition have properties which are comparable to similarly processed IN718 articles. The invention alloys have an as-cast microstructure which is substantially free from Laves phase, even at slow solidification rates. As a result, the alloys are significantly more weldable than IN718. This desirable microstructure is achieved by modifications of the chromium, molybdenum, iron, and nickel contents compared to the typical IN718 composition.

摘要翻译： 描述了可用于铸造+ HIP +热处理条件的镍基超合金组合物。 具有本发明组合物的制品具有与类似处理的IN718制品相当的性质。 本发明合金具有基本上不含Laves相的铸态微结构，即使在缓慢的固化速率下。 因此，合金比IN718显着更多的可焊接性。 与典型的IN718组合物相比，通过改变铬，钼，铁和镍的含量来实现所需的微结构。

公开(公告)号：US4579602A

公开(公告)日：1986-04-01

申请号：US565487

申请日：1983-12-27

申请人： Daniel F. Paulonis ,  David R. Malley ,  Edgar E. Brown

发明人： Daniel F. Paulonis ,  David R. Malley ,  Edgar E. Brown

IPC分类号： C22C19/05 ,  B21J1/06 ,  B21J5/00 ,  B21K1/32 ,  B21K1/36 ,  C22F1/10

CPC分类号： C22F1/10 ,  B21J5/00 ,  B21K1/32

摘要： Forging processes are described for cast superalloys. The forgeability of superalloy materials is improved by the development of overaged microstructure. The total forging process is usually performed in a series of steps with intervening heat treatments to reform the overaged microstructure.

摘要翻译： 锻造工艺描述为铸造超级合金。 超合金材料的锻造可以通过发展过高的微结构而得到改善。 总锻造过程通常采用一系列步骤进行，其中介入热处理以改变过度的微结构。

公开(公告)号：US4325756A

公开(公告)日：1982-04-20

申请号：US115655

申请日：1980-01-28

申请人： Edgar E. Brown ,  Duane L. Ruckle

发明人： Edgar E. Brown ,  Duane L. Ruckle

IPC分类号： C22C19/03

CPC分类号： C22C19/03

摘要： Disclosed is a nickel base alloy of the gamma-gamma prime type, the composition of which is controlled, to provide a gamma matrix phase in which solid solution hardener elements are minimized, to less than 12.5 weight percent. Preferably, the alloy consists essentially by weight percent of 0.25-9Al, 1-4Ti, 2-6Cb, 0.01-0.1C, at least one material selected from the group consisting by weight percent of 0-6Co, 0-6Mo, 2-7.5Cr, 0-2.5Hf and mixtures thereof, balance nickel. The gamma prime fraction in a heat treated article is in the range 10-45 volume percent. The stacking fault energy is preferably in the range 80-120 ergs/cm.sup.2. A gas turbine engine disc made of the material exhibits a three fold increase in fatigue life in the 550-750.degree. C. range, as compared to discs made of typical superalloys in current use, while retaining comparable tensile and stress rupture strength.

摘要翻译： 公开了一种γ-γ基型的镍基合金，其组成被控制，以使固溶固化剂元素最小化的γ基质相小于12.5重量％。 优选地，合金基本上由0.25-9Al，1-4Ti，2-6Cb，0.01-1.1C的重量百分比组成，选自0-6Co，0-6Mo，2- 7.5Cr，0-2.5Hf及其混合物，其余为镍。 热处理制品中的伽马质量分数在10-45体积％的范围内。 堆垛层错能最好在80-120 ergs / cm2范围内。 与当前使用的典型超级合金制成的圆盘相比，由该材料制成的燃气涡轮发动机圆盘在550-750℃范围内的疲劳寿命显示出三倍的增加，同时保持相当的拉伸和应力断裂强度。