公开(公告)号：US5215831A

公开(公告)日：1993-06-01

申请号：US664152

申请日：1991-03-04

Applicant: Ramgopal Darolia ,  David F. Lahrman ,  Robert D. Field

Inventor： Ramgopal Darolia ,  David F. Lahrman ,  Robert D. Field

IPC: C22C19/03 ,  C22C1/00 ,  C22C19/00 ,  C22C49/08 ,  C30B11/00 ,  F01D5/28

CPC classification number: C22C49/08 ,  C22C19/007 ,  C30B11/00 ,  C30B29/52 ,  Y10T428/12486

Abstract: A beta phase nickel aluminide microalloyed with iron having improved ductility. Nickel aluminide intermetallics alloyed with no more than about 0.5 atomic percent iron have significantly improved room temperature ductility over conventional unalloyed beta phase nickel aluminides or beta phase nickel aluminides alloyed with higher percentages of iron.

公开(公告)号：US5516380A

公开(公告)日：1996-05-14

申请号：US324037

申请日：1994-10-14

Applicant: Ramgopal Darolia ,  James R. Dobbs ,  Robert D. Field ,  Edward H. Goldman ,  David F. Lahrman ,  William S. Walston

Inventor： Ramgopal Darolia ,  James R. Dobbs ,  Robert D. Field ,  Edward H. Goldman ,  David F. Lahrman ,  William S. Walston

IPC: C22C19/03

CPC classification number: C22C19/03

Abstract: A NiAl intermetallic alloy and article is provided with improved high temperature strength, particularly stress rupture strength, through the generation of a multiphase microstructure comprising a beta matrix and at least one precipitate phase. The strength properties and microstructure are the result of alloying with at least two elements selected from Ga, Hf, and optionally Ti, Zr, Ta, Nb, and V, in defined ranges. Preferred are at least two of the elements Ga, Hf, and Ti, and specifically preferred are all three. A specifically preferred form of the invention, in atomic percent, is about 45-59% Ni, about 0.02-0.5% Ga, about 0.2 to less than 1% Hf, about 0.1-10% Ti, with the balance A1 and incidental impurities.

Abstract translation: 通过产生包含β基质和至少一个沉淀相的多相微结构，提供NiAl金属间合金和制品具有改善的高温强度，特别是应力断裂强度。 强度性能和微观结构是与选自Ga，Hf以及任选的Ti，Zr，Ta，Nb和V中至少两种元素在规定范围内合金化的结果。 优选元素Ga，Hf和Ti中的至少两种，并且特别优选的是三种。 本发明的特定优选形式，原子百分比为约45-59％的Ni，约0.02-0.5％的Ga，约0.2至小于1％的Hf，约0.1-10％的Ti，余量为A1和杂质 。

公开(公告)号：US5780110A

公开(公告)日：1998-07-14

申请号：US819344

申请日：1997-03-18

Applicant: Jon C. Schaeffer ,  William B. Connor ,  Robert D. Field

Inventor： Jon C. Schaeffer ,  William B. Connor ,  Robert D. Field

IPC: F01D5/28 ,  C23C4/02 ,  C23C28/00 ,  B05D3/00 ,  C23C14/00

CPC classification number: C23C28/00 ,  C23C4/02 ,  Y02T50/67

Abstract: A method for manufacturing an article for use in a gas tubine engine is disclosed, which comprises applying a metallic bond coating on a superalloy substrate; surface doping a surface of the bond coating with at least one element selected from the group consisting of Fe, Cr and Y by plating, ion implantation, MOCVD and sputttering; and then applying an insulative ceramic coating on the bond coating.

Abstract translation: 公开了一种用于制造用于气体发动机的制品的方法，其包括在超级合金基底上施加金属粘结涂层; 通过电镀，离子注入，MOCVD和溅射来表面掺杂选自Fe，Cr和Y中的至少一种元素的结合涂层的表面; 然后在粘合涂层上施加绝缘陶瓷涂层。

公开(公告)号：US4539801A

公开(公告)日：1985-09-10

申请号：US595325

申请日：1984-03-30

Applicant: Robert D. Field

Inventor： Robert D. Field

IPC: A01D61/00 ,  A01D89/00 ,  B65G33/26

CPC classification number: B65G33/265 ,  A01D61/008 ,  A01D89/002

Abstract: Resilient attachments are mounted on a feed auger of the type having a central drum mounted for rotation about a longitudinal axis, spiral flights mounted on longitudinal ends of the drum, and a central drum portion having a plurality of radially extending feed fingers. Each resilient attachment is mounted on and extends radially from the central drum portion about one of the fingers. During operation of the auger, the attachment prevents the accumulation of vegetation on the auger, improves feeding of the vegetation to the combine throat and protects the auger from damage.

Abstract translation: 弹性附件安装在具有安装用于围绕纵向轴线旋转的中心鼓的类型的进料螺旋推运器上，安装在滚筒的纵向端部上的螺旋形飞行器以及具有多个径向延伸进给爪的中心鼓部分。 每个弹性附件安装在中心鼓部分周围的一个手指上并径向延伸。 在螺旋钻操作期间，附件防止植被在螺旋钻上的积聚，改善植物对组合喉咙的喂养，并保护螺旋钻免受损坏。

公开(公告)号：US6123997A

公开(公告)日：2000-09-26

申请号：US950665

申请日：1997-10-15

Applicant: Jon C. Schaeffer ,  William B. Connor ,  Robert D. Field

Inventor： Jon C. Schaeffer ,  William B. Connor ,  Robert D. Field

IPC: B05D3/02 ,  C23C14/00

CPC classification number: F01D5/288 ,  C23C14/02 ,  C23C14/083

Abstract: A thermal barrier coating system and a method for forming the coating system which yields a thermal barrier coating having good adhesion to a bond coat overlying a metal superalloy substrate. The adhesion of the bond coat and the thermal barrier coating is enhanced by forming a mature .alpha.-alumina (Al.sub.2 O.sub.3) scale at the bond coat-TBC interface. The desired mature .alpha.-alumina scale can be obtained by utilizing one or more of the following steps: preoxidation of the bond coat at certain minimum temperatures and durations; inoculation of the surface of the bond coat; surface doping or alloying of the bond coat surface; and the addition of noble metals to the bond coat. Each of these steps promotes the formation of .alpha.-alumina and avoids the formation of the .gamma., .delta. and .theta.-alumina phases which undergo phase transformations at elevated temperatures, with the result that a more spallation-resistant thermal barrier coating system is obtained.

Abstract translation: 一种热障涂层系统和一种形成涂层系统的方法，其产生对覆盖在金属超耐热合金基底上的粘结涂层具有良好粘合性的热障涂层。 通过在粘合涂层-TBC界面处形成成熟的α-氧化铝（Al 2 O 3）氧化皮，增强了粘合涂层和热障涂层的附着力。 可以通过利用以下一个或多个步骤来获得所需的成熟α-氧化铝标准：在特定的最低温度和持续时间内对所述粘合涂层进行预氧化; 接合粘合涂层的表面; 粘合涂层表面的表面掺杂或合金化; 以及向粘合涂层中添加贵金属。 这些步骤中的每一个促进α-氧化铝的形成，并避免在升高的温度下进行相变的γ，δ和θ-氧化铝相的形成，结果获得了更耐剥离的热障涂层系统。

公开(公告)号：US4453375A

公开(公告)日：1984-06-12

申请号：US449559

申请日：1982-12-13

Applicant: Robert D. Field

Inventor： Robert D. Field

IPC: A01D61/00 ,  A01D89/00

CPC classification number: A01D61/008 ,  A01D89/002

Abstract: An attachment is provided for a feed auger of the type having a cylindrical drum mounted for rotation about a longitudinal axis, spiral flights mounted on opposite longitudinal ends of the drum, and a central drum portion having a plurality of radially extending feed fingers. The attachment is resilient and is mounted on and extends radially from the central drum portion about the fingers. During operation of the auger, the attachment prevents the accumulation of vegetation on the auger, improves the feeding of the vegetation to the combine throat and protects the auger from damage.

Abstract translation: 为这种类型的进料螺旋推运器提供了附件，该进料螺旋推运器具有安装成围绕纵向轴线旋转的圆柱形滚筒，安装在滚筒的相对纵向端部上的螺旋形螺旋部分以及具有多个径向延伸进给指状物的中心鼓部分。 附件是弹性的，并且安装在中心鼓部分周围的手指周围并径向延伸。 在螺旋钻操作期间，附件防止植被在螺旋钻上的积聚，改善植物对组合喉咙的喂养，并保护螺旋钻免受损坏。