公开(公告)号：US20110159175A1

公开(公告)日：2011-06-30

申请号：US12649737

申请日：2009-12-30

Applicant: Jon Raymond GROH ,  Thomas Allen Kauffung ,  Mark Alan Rhoads

Inventor： Jon Raymond GROH ,  Thomas Allen Kauffung ,  Mark Alan Rhoads

IPC: B05D1/36 ,  B05D1/02 ,  B05D5/00 ,  B05D1/18 ,  B05D1/28

CPC classification number: C23C28/00 ,  C23C22/74 ,  F01D5/288 ,  F01D25/007 ,  F05D2230/80 ,  F05D2230/90 ,  F05D2300/171

Abstract: Disclosed herein is a method for inhibiting corrosion of a high strength steel turbine component subject to rotary stress. The method comprises applying a sacrificial overlay coating material to at least a portion of a surface of the component to form a protected component, and applying a seal material to at least a portion of the protected component to form a seal coat having a temperature resistance of greater than about 500° F. Also disclosed herein is a turbine component and corresponding engine protected by the method. Further provided is a method for repairing a high strength steel component of a turbofan engine. These methods are capable of inhibiting at least one of stress corrosion cracking or surface pitting of the turbine component after exposure to corrosive water.

Abstract translation: 本文公开了一种用于抑制受到旋转应力的高强度钢水轮机部件的腐蚀的方法。 该方法包括将牺牲覆盖涂层材料施加到部件的表面的至少一部分以形成受保护的部件，以及将密封材料施加到至少一部分被保护部件以形成耐温度为 大于约500°F。本文还公开了一种涡轮机部件和由该方法保护的对应的发动机。 还提供了一种用于修理涡轮风扇发动机的高强度钢部件的方法。 这些方法能够在暴露于腐蚀性水之后抑制涡轮机部件的应力腐蚀开裂或表面点蚀中的至少一种。

公开(公告)号：US06966954B2

公开(公告)日：2005-11-22

申请号：US10279488

申请日：2002-10-24

Applicant: Mark Alan Rhoads ,  Michael Gilbert Johnson ,  Jonothan Allen Scheetz

Inventor： Mark Alan Rhoads ,  Michael Gilbert Johnson ,  Jonothan Allen Scheetz

IPC: C21D1/78 ,  C21D6/00 ,  C23C8/26 ,  F16C33/12 ,  C22C38/22 ,  C21D9/00 ,  C22C38/44

CPC classification number: F16C33/12 ,  C21D1/78 ,  C21D6/002 ,  C21D6/004 ,  C23C8/26 ,  F16C2204/60

Abstract: A roller bearing that provides ball and roller bearing elements comprised of M50 steel and M50NiL steel having surface hardnesses above 60 HRC, and in the range of 65-72 HRC. The hardness in the surface region is achieved by nitriding the surface to achieve a high hardness and extended life. This improvement is brought about by controlling the microstructure of the alloy by minimizing the formation of retained austenite. The material is tempered as required. The surface is then nitrided, but the nitriding operation is carefully controlled to avoid the formation of intergranular nitrides. Because of the method used to prevent the formation of intergranular nitrides, some carbon may be present to prevent the surface of the steel from becoming depleted of carbon. The hardening element in this nitro-carburizing operation is nitrogen, which forms iron nitride as Fe3N or Fe4N intragranularly. The purpose of the carbon in the operation is to maintain the concentration of carbon in the surface of the bearing so that the properties are not altered by decarburizing the surface. Standard gaseous and plasma nitriding techniques also may be used for the nitriding operation.

Abstract translation: 一种滚动轴承，其提供由M50钢和M50NiL钢组成的球和滚子轴承元件，其表面硬度高于60HRC，并且在65-72HRC的范围内。 表面区域的硬度是通过对表面进行氮化而实现的，以达到高硬度和延长使用寿命。 通过最小化残余奥氏体的形成来控制合金的微观结构，可以实现这种改进。 材料根据需要回火。 然后将表面氮化，但是精心控制氮化操作以避免形成晶间氮化物。 由于用于防止形成晶间氮化物的方法，可能存在一些碳以防止钢的表面变成碳。 该硝基渗碳操作中的硬化元素是氮，其形成Fe 3 N 3或Fe 4 N N的氮化铁。 操作中的碳的目的是保持轴承表面中碳的浓度，使得通过对表面进行脱碳来改变其性能。 标准的气体和等离子体氮化技术也可用于氮化操作。

公开(公告)号：US06692550B2

公开(公告)日：2004-02-17

申请号：US10109995

申请日：2002-03-28

Applicant: Edward Lee Raymond ,  Mark Alan Rhoads ,  Glenn Charles Culbertson

Inventor： Edward Lee Raymond ,  Mark Alan Rhoads ,  Glenn Charles Culbertson

IPC: C21C706

CPC classification number: C22C38/44 ,  C21C7/0006 ,  C21C7/06 ,  C21C7/10 ,  C22C38/002 ,  C22C38/06 ,  C22C38/52

Abstract: A steel article is fabricated by providing an iron-base alloy having less than about 0.5 weight percent aluminum, melting the alloy to form a melt, adding calcium to the melt, thereafter adding aluminum to the melt to increase the aluminum content of the melt to more than about 0.5 weight percent aluminum, and casting the melt to form a casting. Other calcium additions may be made simultaneously with the adding of aluminum, and after the adding of aluminum but before casting the melt. The calcium additions deoxidize the melt to minimize the formation of clustered aluminum-oxygen-based inclusions.

Abstract translation: 通过提供具有小于约0.5重量％的铝的铁基合金制造钢制品，熔化合金以形成熔体，向熔体中加入钙，然后向熔体中加入铝以将熔体的铝含量增加至 大于约0.5重量％的铝，并浇铸熔体以形成铸件。 其他钙添加剂可以与添加铝同时进行，并且在加入铝之后但在熔融之前制备。 钙添加剂使熔体脱氧以最小化聚集的铝 - 氧基夹杂物的形成。

公开(公告)号：US07094273B2

公开(公告)日：2006-08-22

申请号：US10773362

申请日：2004-02-06

Applicant: Edward Lee Raymond ,  Mark Alan Rhoads ,  Glenn Charles Culbertson

Inventor： Edward Lee Raymond ,  Mark Alan Rhoads ,  Glenn Charles Culbertson

IPC: C21C7/06

CPC classification number: C21C7/06 ,  C21C7/10 ,  C22C38/06

Abstract: A steel article is fabricated by providing an iron-base alloy having less than about 0.5 weight percent aluminum, melting the alloy to form a melt, adding calcium to the melt, thereafter adding aluminum to the melt to increase the aluminum content of the melt to more than about 0.5 weight percent aluminum, and casting the melt to form a casting. Other calcium additions may be made simultaneously with the adding of aluminum, and after the adding of aluminum but before casting the melt. The calcium additions deoxidize the melt to minimize the formation of clustered aluminum-oxygen-based inclusions.