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1. 发明授权

US07186304B2 Carbo-nitrided case hardened martensitic stainless steels 有权
标题翻译：碳化氮化硬化马氏体不锈钢
公开(公告)号：US07186304B2
公开(公告)日：2007-03-06
申请号：US10859371
申请日：2004-06-02
申请人： Herbert A. Chin , William P. Ogden , David A. Haluck
发明人： Herbert A. Chin , William P. Ogden , David A. Haluck
IPC分类号： C22C38/52 , C23C8/32
CPC分类号： C22C38/30 , C23C8/32 , F16C33/62 , F16C33/64 , F16C2204/70
摘要： A carbo-nitriding process for forming a martensitic stainless steel, which is case hardened and superior corrosion resistance over carburized process, is provided. A process for forming a martensitic stainless steel which is case hardened is provided. The process comprises the steps of providing a material consisting essentially of from 8.0 to 18 wt % chromium, cobalt up to 16 wt %, vanadium up to 5.0 wt %, molybdenum up to 8.0 wt %, nickel up to 8.0 wt %, manganese up to 4.0 wt %, silicon up to 2.0 wt %, tungsten up to 6.0 wt %, titanium up to 2.0 wt %, niobium up to 4.0 wt % and the balance iron, and carbo-nitriding to prescribed levels of C+N, to form a hard, corrosion resistance case in a fracture tough stainless steel.
摘要翻译：提供了用于形成马氏体不锈钢的碳氮化方法，该方法具有硬化和优异的耐渗碳性能。提供了一种用于形成壳体硬化的马氏体不锈钢的方法。该方法包括以下步骤：提供基本上由8.0至18重量％的铬，至多16重量％的钴，至多5.0重量％的钒，至多8.0重量％的钼，至多8.0重量％的镍，至少8.0重量％的镍至4.0重量％，高达2.0重量％的硅，至多6.0重量％的钨，至多2.0重量％的钛，至多4.0重量％的铌，余量为的铁，以及碳氮化至规定的C + N水平，至在破裂韧性不锈钢中形成坚硬耐腐蚀的外壳。

2. 发明申请

US20130306194A1 Manufacturing Process for Aerospace Bearing Rolling Elements 有权
标题翻译：航空轴承滚动元件制造工艺
公开(公告)号：US20130306194A1
公开(公告)日：2013-11-21
申请号：US13474407
申请日：2012-05-17
申请人： Herbert A. Chin , William P. Ogden , David A. Haluck , Sean McCutchan , Ronald F. Spitzer , Allen V. Keller
发明人： Herbert A. Chin , William P. Ogden , David A. Haluck , Sean McCutchan , Ronald F. Spitzer , Allen V. Keller
IPC分类号： C23C8/02 , C21D7/06
CPC分类号： C21D7/06 , B24B1/00 , B24B11/02 , B24B19/06 , B24B31/02 , C21D1/76 , C21D9/36 , C21D9/40 , C23C8/02 , C23C8/26 , C23C8/36 , C23C8/50 , C23C8/80 , F16C33/32 , F16C2223/02 , F16C2223/10 , F16C2240/18 , F16C2360/23 , Y02P10/212 , Y10T29/47
摘要： A method of treating bearing rolling elements or bearing rings after a hardening and temper heat treatment is disclosed. The method may include treating the bearing rolling elements in a tumbling treatment and then in a duplex hardening treatment. The method may include treating the bearing rings in a peening treatment and then in a duplex hardening treatment. The duplex hardening treatment may also include at least one sequential process segment consisting of subjecting the bearing rolling element & rings to a nitriding process to increase the surface hardness and compressive residual stress. The combined two-step process produces a deep surface/sub-surface residual stress greater than the depth of the maximum operating von-Mises shear stress along with an ultra-hard surface with high magnitude of compressive residual stress. In so doing, the bearing ring and rolling elements will have significantly enhanced rolling contact fatigue resistance and resistance to surface imperfections and debris.
摘要翻译：公开了一种在硬化和回火热处理之后处理轴承滚动元件或轴承环的方法。该方法可以包括在滚动处理中然后在双相硬化处理中处理轴承滚动元件。该方法可以包括在喷丸处理中然后在双相硬化处理中处理轴承环。双相硬化处理还可以包括至少一个顺序的工艺段，其包括使轴承滚动元件和环经受氮化过程以增加表面硬度和压缩残余应力。组合的两步过程产生的深表面/亚表面残余应力大于最大操作von-Mises剪切应力的深度以及具有高压缩残余应力的超硬表面。在这样做时，轴承圈和滚动元件将具有显着增强的滚动接触疲劳性能和抗表面缺陷和碎屑。

3. 发明授权

US09732394B2 Manufacturing process for aerospace bearing rolling elements 有权
公开(公告)号：US09732394B2
公开(公告)日：2017-08-15
申请号：US13474407
申请日：2012-05-17
申请人： Herbert A. Chin , William P. Ogden , David A. Haluck , Sean McCutchan , Ronald F. Spitzer , Allen V. Keller
发明人： Herbert A. Chin , William P. Ogden , David A. Haluck , Sean McCutchan , Ronald F. Spitzer , Allen V. Keller
IPC分类号： C21D7/06 , C23C8/26 , C23C8/36 , C23C8/50 , C23C8/02 , C23C8/80 , C21D1/76 , C21D9/36 , C21D9/40 , B24B11/02 , B24B19/06 , B24B31/02 , B24B1/00 , F16C33/32
CPC分类号： C21D7/06 , B24B1/00 , B24B11/02 , B24B19/06 , B24B31/02 , C21D1/76 , C21D9/36 , C21D9/40 , C23C8/02 , C23C8/26 , C23C8/36 , C23C8/50 , C23C8/80 , F16C33/32 , F16C2223/02 , F16C2223/10 , F16C2240/18 , F16C2360/23 , Y02P10/212 , Y10T29/47
摘要： A method of treating bearing rolling elements or bearing rings after a hardening and temper heat treatment is disclosed. The method may include treating the bearing rolling elements in a tumbling treatment and then in a duplex hardening treatment. The method may include treating the bearing rings in a peening treatment and then in a duplex hardening treatment. The duplex hardening treatment may also include at least one sequential process segment consisting of subjecting the bearing rolling element & rings to a nitriding process to increase the surface hardness and compressive residual stress. The combined two-step process produces a deep surface/sub-surface residual stress greater than the depth of the maximum operating von-Mises shear stress along with an ultra-hard surface with high magnitude of compressive residual stress. In so doing, the bearing ring and rolling elements will have significantly enhanced rolling contact fatigue resistance and resistance to surface imperfections and debris.

4. 发明授权

US08580051B2 Method of processing steel and steel article 有权
标题翻译：钢铁制品加工方法
公开(公告)号：US08580051B2
公开(公告)日：2013-11-12
申请号：US13647461
申请日：2012-10-09
申请人： Herbert A. Chin , William P. Ogden
发明人： Herbert A. Chin , William P. Ogden
IPC分类号： C23C8/22
CPC分类号： C21D1/18 , C21D1/25 , C21D6/002 , C21D9/32 , C21D2211/004 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/52 , C23C8/22 , C23C8/80
摘要： A method of processing steel includes carburizing a martensitic stainless steel work piece to produce a carburized case by utilizing in combination, (i) a composition of the martensitic stainless steel work piece, (ii) a preselected carbon concentration in the carburized case, and (iii) a preselected grain size of the martensitic stainless steel work piece such that the carburized case predominately forms carbides of composition M6C, M2C, M23C6 or combinations thereof. The martensitic stainless steel work piece is then heated to substantially solution the metal carbides. The work piece is then quenched at a cooling rate that is sufficient to avoid substantial precipitation of any carbides during cool down to the martensite start temperature, then given a low temperature temper. In so doing, the carburized case hardened martensitic stainless steel will have balanced mechanical, tribological and corrosion resistance properties for high performance bearing and gear components.
摘要翻译：钢的加工方法包括使马氏体不锈钢工件渗碳，通过组合使用（i）马氏体系不锈钢工件的组成，（ii）渗碳情况下的预选碳浓度和（ iii）马氏体不锈钢工件的预选晶粒尺寸，使得渗碳壳主要形成组成为M6C，M2C，M23C6的碳化物或其组合。然后将马氏体不锈钢工件加热至基本上溶解金属碳化物。然后将工件以足以在冷却至马氏体开始温度期间任何碳化物显着沉淀的冷却速率淬火，然后给予低温回火。这样做，渗碳表面硬化马氏体不锈钢将具有平衡的机械，摩擦和耐腐蚀性能，用于高性能轴承和齿轮部件。

5. 发明授权

US08308873B2 Method of processing steel and steel article 有权
标题翻译：钢铁制品加工方法
公开(公告)号：US08308873B2
公开(公告)日：2012-11-13
申请号：US13083676
申请日：2011-04-11
申请人： Herbert A. Chin , William P. Ogden
发明人： Herbert A. Chin , William P. Ogden
IPC分类号： C23C8/22
CPC分类号： C21D1/18 , C21D1/25 , C21D6/002 , C21D9/32 , C21D2211/004 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/52 , C23C8/22 , C23C8/80
摘要： A method of processing steel includes carburizing a martensitic stainless steel work piece to produce a carburized case by utilizing in combination, (i) a composition of the martensitic stainless steel work piece, (ii) a preselected carbon concentration in the carburized case, and (iii) a preselected grain size of the martensitic stainless steel work piece such that the carburized case predominately forms carbides of composition M6C, M2C, M23C6 or combinations thereof. The martensitic stainless steel work piece is then heated to substantially solution the metal carbides. The work piece is then quenched at a cooling rate that is sufficient to avoid substantial precipitation of any carbides during cool down to the martensite start temperature, then given a low temperature temper. In so doing, the carburized case hardened martensitic stainless steel will have balanced mechanical, tribological and corrosion resistance properties for high performance bearing and gear components.
摘要翻译：钢的加工方法包括使马氏体不锈钢工件渗碳，通过组合使用（i）马氏体系不锈钢工件的组成，（ii）渗碳情况下的预选碳浓度和（ iii）马氏体不锈钢工件的预选晶粒尺寸，使得渗碳壳主要形成组成为M6C，M2C，M23C6的碳化物或其组合。然后将马氏体不锈钢工件加热至基本上溶解金属碳化物。然后将工件以足以在冷却至马氏体开始温度期间任何碳化物显着沉淀的冷却速率淬火，然后给予低温回火。这样做，渗碳表面硬化马氏体不锈钢将具有平衡的机械，摩擦和耐腐蚀性能，用于高性能轴承和齿轮部件。

6. 发明申请

US20120255653A1 METHOD OF PROCESSING STEEL AND STEEL ARTICLE 有权
标题翻译：钢铁加工方法
公开(公告)号：US20120255653A1
公开(公告)日：2012-10-11
申请号：US13083676
申请日：2011-04-11
申请人： Herbert A. Chin , William P. Ogden
发明人： Herbert A. Chin , William P. Ogden
IPC分类号： C22C38/22 , C23C22/82
CPC分类号： C21D1/18 , C21D1/25 , C21D6/002 , C21D9/32 , C21D2211/004 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/52 , C23C8/22 , C23C8/80
摘要： A method of processing steel includes carburizing a martensitic stainless steel work piece to produce a carburized case by utilizing in combination, (i) a composition of the martensitic stainless steel work piece, (ii) a preselected carbon concentration in the carburized case, and (iii) a preselected grain size of the martensitic stainless steel work piece such that the carburized case predominately forms carbides of composition M6C, M2C, M23C6 or combinations thereof. The martensitic stainless steel work piece is then heated to substantially solution the metal carbides. The work piece is then quenched at a cooling rate that is sufficient to avoid substantial precipitation of any carbides during cool down to the martensite start temperature, then given a low temperature temper. In so doing, the carburized case hardened martensitic stainless steel will have balanced mechanical, tribological and corrosion resistance properties for high performance bearing and gear components.
摘要翻译：钢的加工方法包括使马氏体不锈钢工件渗碳，通过组合使用（i）马氏体系不锈钢工件的组成，（ii）渗碳情况下的预选碳浓度和（ iii）马氏体不锈钢工件的预选晶粒尺寸，使得渗碳壳主要形成组成为M6C，M2C，M23C6的碳化物或其组合。然后将马氏体不锈钢工件加热至基本上溶解金属碳化物。然后将工件以足以在冷却至马氏体开始温度期间任何碳化物显着沉淀的冷却速率淬火，然后给予低温回火。这样做，渗碳表面硬化马氏体不锈钢将具有平衡的机械，摩擦和耐腐蚀性能，用于高性能轴承和齿轮部件。

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