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1. 发明授权

US4047981A Internally nitrided ferritic stainless steel strip, sheet and fabricated products and method therefor 失效
标题翻译：内部氮化铁素体不锈钢带材，片材及其制造产品及其方法
公开(公告)号：US4047981A
公开(公告)日：1977-09-13
申请号：US701089
申请日：1976-06-30
申请人： Jerry L. Arnold , Joseph A. Douthett
发明人： Jerry L. Arnold , Joseph A. Douthett
IPC分类号： C22C38/00 , C22C38/28 , C23C8/00 , C23C8/26 , C22C38/40 , C21D1/48
CPC分类号： C23C8/26 , C22C38/28 , C23C8/00
摘要： Internally nitrided ferritic stainless steel cold reduced strip and sheet and products fabricated therefrom having an elevated temperature creep strength and oxidation resistance superior to AISI Type 316 austenitic stainless steel, and good room temperature formability. A non-hardenble AISI Type 400 series ferritic stainless steel containing a nitride former (titanium, zirconium, hafnium, columbium, vanadium, tantalum or rare earth metals) in excess of the amount required to react completely with residual nitrogen and carbon in the steel is reacted with nitrogen internally by heat treatment in a nitrogen-hydrogen atmosphere at a temperature of at least about 800.degree. C but below that at which austenite will form under conditions precluding formation of chromium nitrides, chromium oxides, and austenite.
摘要翻译：内部氮化铁素体不锈钢冷轧带材和由其制造的产品具有优于AISI 316型奥氏体不锈钢的高温蠕变强度和抗氧化性，以及良好的室温成形性。含有超过钢中剩余氮和碳完全反应所需量的氮化物（钛，锆，铪，铌，钒，钽或稀土金属）的非硬质AISI 400系铁素体不锈钢是通过在氮 - 氢气氛中在至少约800℃但低于在不排除形成氮化铬，铬氧化物和奥氏体的条件下形成奥氏体的温度下在氮内反应。

2. 发明申请

US20130294960A1 Cost-effective Ferritic Stainless Steel 有权
标题翻译：高性价比铁素体不锈钢
公开(公告)号：US20130294960A1
公开(公告)日：2013-11-07
申请号：US13855439
申请日：2013-04-02
申请人： Joseph A. Douthett , Shannon K. Craycraft
发明人： Joseph A. Douthett , Shannon K. Craycraft
IPC分类号： C22C38/50 , C22C38/44 , C22C38/00 , C22C38/04 , C22C38/02 , C22C38/48 , C22C38/42
CPC分类号： C22C38/001 , C21D6/002 , C22C38/02 , C22C38/04 , C22C38/20 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50
摘要： cost effective ferritic stainless steel exhibits improved corrosion resistance comparable to that observed on Type 304L steel. The ferritic stainless steel is substantially nickel-free, dual stabilized with titanium and columbium, and contains chromium, copper, and molybdenum.
摘要翻译：具有成本效益的铁素体不锈钢表现出与304L型钢相似的耐腐蚀性。铁素体不锈钢基本上是无镍的，用钛和铌双重稳定，并含有铬，铜和钼。

3. 发明授权

US09816163B2 Cost-effective ferritic stainless steel 有权
公开(公告)号：US09816163B2
公开(公告)日：2017-11-14
申请号：US13855439
申请日：2013-04-02
申请人： Joseph A. Douthett , Shannon K. Craycraft
发明人： Joseph A. Douthett , Shannon K. Craycraft
IPC分类号： C22C38/20 , C22C38/42 , C22C38/44 , C22C38/50 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/48 , C21D6/00
CPC分类号： C22C38/001 , C21D6/002 , C22C38/02 , C22C38/04 , C22C38/20 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50
摘要： A cost effective ferritic stainless steel exhibits improved corrosion resistance comparable to that observed on Type 304L steel. The ferritic stainless steel is substantially nickel-free, dual stabilized with titanium and columbium, and contains chromium, copper, and molybdenum.

4. 发明授权

US4295769A Copper and nitrogen containing austenitic stainless steel and fastener 失效
标题翻译：铜和氮含奥氏体不锈钢和紧固件
公开(公告)号：US4295769A
公开(公告)日：1981-10-20
申请号：US125551
申请日：1980-02-28
申请人： Joseph A. Douthett , Ronald H. Espy
发明人： Joseph A. Douthett , Ronald H. Espy
IPC分类号： C22C38/00 , C22C38/42 , C22C38/58 , C22C38/16
CPC分类号： C22C38/58 , C22C38/42
摘要： A low cost austenitic stainless steel having a high work hardening rate and good ductility if drastically cold reduced, consisting essentially of, in weight percent, 0.05% maximum carbon, 1.5% to 3.0% manganese, about 0.06% maximum phosphorus, about 0.035% maximum sulfur, about 1% maximum silicon, about 15% to about 20% chromium, 3% to 4.7% nickel, 1.75% to 3% copper, 0.10% to 0.30% nitrogen, up to about 0.3% columbium, titanium, tantalum or mixtures thereof, and balance essentially iron. The steel has particular utility in fabrication of cold headed fasteners.
摘要翻译：一种低成本的奥氏体不锈钢，其加工硬化率高，延展性好，如果大幅降低，主要由重量百分比计，最大碳0.05％，锰1.5％至3.0％，最大磷约0.06％，最大值约0.035％硫，约1％的最大硅，约15％至约20％的铬，3％至4.7％的镍，1.75％至3％的铜，0.10％至0.30％的氮，至多约0.3％的铌，钛，钽或混合物并且基本上是铁。该钢在制造冷头紧固件方面具有特殊的用途。

5. 发明授权

US5783622A Precoated chromium alloyed steel with enhanced paint adhesion for exhaust applications 失效
标题翻译：预涂铬合金钢，具有增强涂料附着力的排气应用
公开(公告)号：US5783622A
公开(公告)日：1998-07-21
申请号：US851259
申请日：1997-05-05
申请人： Ashok Sabata , Joseph A. Douthett , Sherman E. Winkle, Sr.
发明人： Ashok Sabata , Joseph A. Douthett , Sherman E. Winkle, Sr.
IPC分类号： C23C30/00 , B05D7/00 , B05D7/14 , C09D5/10 , C09D123/00 , C09D133/00 , C09D183/04 , C09D191/00 , C23C22/24 , C23C22/82 , C23C28/00 , C08K3/34
CPC分类号： B05D7/51 , B05D7/14 , C23C28/00 , Y10T428/12549
摘要： A stainless steel sheet suitable for use in the manufacture of an exhaust component. The steel sheet has at least one surface pretreated with a protective coating resistant to delamination at temperatures up to about 540.degree. C. including an inner inorganic portion and an outer organic portion. The inorganic portion includes at least 50 mg/m.sup.2 of a chromium based conversion coating having a thickness no greater then 0.02 mm. The conversion coating contains particulate silica with the weight ratio of chromium to silica within the range of 1:1 to 2:1. The outer organic portion includes a silicone paint containing 40-60 wt. % silicone resin. The silicone paint is dried at a temperature less than 300.degree. C. in less than one minute and then coated with a copolymer of a thermoplastic acrylic and a lubricant or a polymeric olefin. The acrylic copolymer contains 5-70 wt. % of the lubricant and the polymeric olefin contains 90% olefin resin. The lubricant coated steel sheet then is dried at a temperature of a 25.degree.-120.degree. C. for less than one minute to form a film thickness of 0.0005-0.020 mm, having a coefficient of friction of no greater than about 0.05 and a weight of 10-5000 mg/m.sup.2. The dried silicone paint covered by the dry lubricant film is tack-free, impervious to moisture, oil, dirt, and the like with the silicone coated steel sheet ready for forming into an exhaust component with minimal delamination of the dried silicone paint without additional external lubricant being required on the sheet.
摘要翻译：适用于制造排气部件的不锈钢板。该钢板具有至少一个表面，该表面用高达约540℃的耐分层性的保护涂层预处理，包括内部无机部分和外部有机部分。无机部分包括至少50mg / m 2的厚度不大于0.02mm的铬基转化涂层。转化涂层含有二氧化硅重量比为1：1至2：1的颗粒状二氧化硅。外部有机部分包括含有40-60wt。％硅树脂。硅氧烷涂料在不到一分钟内在低于300℃的温度下干燥，然后用热塑性丙烯酸和润滑剂或聚合烯烃的共聚物涂覆。丙烯酸共聚物含有5-70wt。％的润滑剂和聚合烯烃含有90％的烯烃树脂。然后将润滑剂涂覆的钢板在25-120℃的温度下干燥少于一分钟，以形成0.0005-0.020mm的膜厚，摩擦系数不大于约0.05，重量为10-5000 mg / m2。由干燥润滑剂膜覆盖的干燥的硅油涂层是无粘性的，不透水分，油，污垢等，其中硅氧烷涂层钢板可以形成废气组分，同时最小化干燥硅氧烷涂料的分层，无需额外的外部在片材上需要润滑剂。

6. 发明授权

US4828630A Duplex stainless steel with high manganese 失效
标题翻译：双相不锈钢，高锰
公开(公告)号：US4828630A
公开(公告)日：1989-05-09
申请号：US152178
申请日：1988-02-04
申请人： James A. Daniels , Joseph A. Douthett , John G. Tack
发明人： James A. Daniels , Joseph A. Douthett , John G. Tack
IPC分类号： A61F2/00 , A61F2/30 , A61F2/46 , C22C38/00 , C22C38/58
CPC分类号： A61F2/30771 , C22C38/001 , C22C38/58 , A61F2/3094 , A61F2/468 , A61F2002/30148 , A61F2002/30273 , A61F2002/30808 , A61F2002/30836 , A61F2002/30838 , A61F2002/30879 , A61F2002/30883 , A61F2002/30892 , A61F2002/30957 , A61F2002/3097 , A61F2230/0017 , A61F2230/0086 , A61F2310/00023
摘要： A duplex stainless steel which is economical and balanced to provide a good combination of properties in the as-cast condition and resists thermal transformation to martensite due the high levels of manganese. This steel is particularly suited for thin-walled castings for automotive underbody components. It is 30% to 60% ferrite and balance austenite and, in weight percent, consists essentially of:C - up to 0.07,Cr - 17 to 21.5,Ni - greater than 1 to less than 4,Mn - greater than 4 to 8,N - 0.05 to 0.15,Si - less than 2,Mo - less than 2,Cu - less than 1.5 and balance essentially Fe.

7. 发明授权

US4790977A Silicon modified low chromium ferritic alloy for high temperature use 失效
标题翻译：硅改性低铬铁素体合金用于高温使用
公开(公告)号：US4790977A
公开(公告)日：1988-12-13
申请号：US94785
申请日：1987-09-10
申请人： James A. Daniels , Joseph A. Douthett
发明人： James A. Daniels , Joseph A. Douthett
IPC分类号： C22C38/00 , C22C38/34 , C22C38/58
CPC分类号： C22C38/34
摘要： A ferritic alloy steel having good creep strength and cyclic oxidation resistance at elevated temperatures up to 982.degree. C. (1800.degree. F.) with an optional final anneal at 1010.degree.-1150.degree. C. (1850.degree.-2100.degree. F.) consisting essentially of from about 0.01% to about 0.30% carbon, about 2% maximum manganese, greater than 2.35% to about 4% silicon, about 3% to about 7% chromium, about 1% maximum nickel, about 0.15% maximum nitrogen, less than 0.3% aluminum, about 2% maximum molybdenum, at least one element selected from the group of niobium, titanium, tantalum, vanadium and zirconium in an amount up to 1.0% and the balance essentially iron.

8. 发明授权

US4341555A High strength austenitic stainless steel exhibiting freedom from embrittlement 失效
标题翻译：高强度奥氏体不锈钢不易发生脆化
公开(公告)号：US4341555A
公开(公告)日：1982-07-27
申请号：US135692
申请日：1980-03-31
申请人： Joseph A. Douthett , Harry Tanczyn
发明人： Joseph A. Douthett , Harry Tanczyn
IPC分类号： C22C38/44 , C22C38/48 , C22C38/50 , C22C38/58
CPC分类号： C22C38/44
摘要： An austenitic stainless steel having high strength, good hot workability, good corrosion resistance, and freedom from embrittlement both in the cold-worked and stress-relieved condition and in the heat affected zone of weldments, consisting essentially of 0.06% maximum carbon, about 0.2% to 3.0% manganese, about 21% to 24.5% chromium, about 10% to 17% nickel, about 0.15% to 0.40% nitrogen, about 1.5% maximum silicon, about 2% to 4.5% molybdenum, about 0.06% maximum phosphorus, about 0.35% maximum sulfur, residual columbium with less than about 0.04% carbon and about 0.1% to 0.6% columbium with carbon exceeding about 0.04%, and balance essentially iron.
摘要翻译：一种奥氏体不锈钢，其特征在于，在冷加工和应力释放条件下以及焊接的热影响区域中，具有高强度，良好的热加工性，良好的耐腐蚀性和无脆化性，其基本上由0.06％的最大碳组成，约0.2 约3.0％的锰，约21％至24.5％的铬，约10％至17％的镍，约0.15％至0.40％的氮，约1.5％的最大硅，约2％至4.5％的钼，约0.06％的最大磷，约0.35％的最大硫，残余铌具有小于约0.04％的碳和约0.1％至0.6％的铌，其中碳超过约0.04％，并且平衡为铁。

9. 发明授权

US4261739A Ferritic steel alloy with improved high temperature properties 失效
标题翻译：铁素体钢合金具有改善的高温性能
公开(公告)号：US4261739A
公开(公告)日：1981-04-14
申请号：US63676
申请日：1979-08-06
申请人： Joseph A. Douthett , Ronald H. Espy , D. Cameron Perry
发明人： Joseph A. Douthett , Ronald H. Espy , D. Cameron Perry
IPC分类号： C22C38/00 , C21D9/46 , C22C38/26 , C22C38/28 , C22C38/06
CPC分类号： C22C38/26 , C22C38/28
摘要： A ferritic steel having improved creep or sag resistance and oxidation resistance at temperatures ranging from about 732.degree. to 1093.degree. C. after a final anneal at 1010.degree. to 1120.degree. C., together with good weldability, the steel consisting essentially of, by weight percent, from about 0.01% to 0.06% carbon, about 1% maximum manganese, about 2% maximum silicon, about 1% to about 20% chromium, about 0.5% maximum nickel, about 0.5% to 2% aluminum, about 0.1% to 0.05% nitrogen, 1.0% maximum titanium, with a minimum titanium content of 4 times the percent carbon plus 3.5 times the percent nitrogen, about 0.1% to 1.0% columbium, with the sum total of titanium plus columbium not exceeding about 1.2%, and remainder essentially iron. In the form of cold reduced strip and sheet stock the steel has particular utility in motor vehicle components.
摘要翻译：一种在1010℃至1120℃下最终退火之后，在约732℃至1093℃的温度范围内具有改善的蠕变或抗流挂性和抗氧化性的铁素体钢，以及良好的可焊性，该钢基本上由重量百分比，约0.01％至0.06％的碳，约1％的最大锰，约2％的最大硅，约1％至约20％的铬，约0.5％的最大镍，约0.5％至2％的铝，约0.1％ 0.05％的氮，1.0％的最大钛，最小的钛含量是碳的四倍加上3.5倍的氮，约0.1％至1.0％的铌，钛和铌的总和不超过约1.2％，剩余部分基本上是铁。以冷轧带钢和板料的形式，钢铁在汽车部件中具有特殊的用途。

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