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公开(公告)号：US4832909A
公开(公告)日：1989-05-23
申请号：US218458
申请日：1988-07-11
IPC分类号： C22C38/10
CPC分类号： C22C38/105
摘要： A low cobalt maraging steel has a yield strength of at least about 240 ksi (about 1655 MPa) in the aged condition in combination with good toughness as indicated by a longitudinal Charpy V-notch impact toughness of at least aobut 20 ft-lb (about 27 J), as well as good notch ductility. The alloy contains, in weight percent, about:______________________________________ w/o ______________________________________ C 0.02 Max. Ni 15-20 Mo 0.50-4.0 Co 0.5-5.0 Ti 0.90-1.35 Nb 0.03-0.35 Al 0.3 Max. B Up to 0.015 ______________________________________ The balance is essentially iron, optional additions, and the usual impurities found in commercial grades of high nickel, low carbon maraging steels. The alloy is further characterized in that the ratio %Co:%Mo is at least about 0.3 and %Ti+%Nb.gtoreq.1.0.
摘要翻译： 低钴马氏体时效钢在老化条件下具有至少约240ksi（约1655MPa）的屈服强度，并且具有良好的韧性，如纵向夏比V型缺口冲击韧性至少为20ft-lb（约 27 J），以及良好的缺口延展性。 该合金以重量百分比计含有：-w / o -C 0.02最大。 -N 15-20 -Mo 0.50-4.0 -Co 0.5-5.0 -Ti 0.90-1.35 -Nb 0.03-0.35 -Al 0.3最大 -B高达0.015 - 余量基本上是铁，可选的添加剂，以及商业级高镍，低碳马氏体时效钢中常见的杂质。 该合金的特征还在于，Co:Mg％的比例为至少约0.3，Ti +％Nb> / = 1.0。
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2.发明授权Age hardenable alloy with a unique combination of very high strength and good toughness 失效年龄可硬化合金，具有非常高的强度和良好韧性的独特组合
公开(公告)号：US5866066A
公开(公告)日：1999-02-02
申请号：US706745
申请日：1996-09-09
CPC分类号： C21D9/42 , C21D6/007 , C22C38/105
摘要： An age hardenable martensitic steel alloy having a unique combination of very high strength and good toughness consists essentially of, in weight percent, about______________________________________ C 0.21-0.34 Mn 0.20 max. Si 0.10 max. P 0.008 max. S 0.003 max. Cr 1.5-2.80 Mo 0.90-1.80 Ni 10-13 Co 14.0-22.0 Al 0.1 max. Ti 0.05 max. Ce 0.030 max. La 0.010 max.______________________________________the balance essentially iron. In addition, cerium and sulfur are balanced so that the ratio Ce/S is at least about 2 and not more than about 15. A small but effective amount of calcium can be present in place of some or all of the cerium and lanthanum.
摘要翻译： 具有非常高的强度和良好韧性的独特组合的时效硬化马氏体钢合金基本上由重量百分数约为0.2-0.34-Mn 0.20最大。 - Si 0.10最大 - P 0.008最大 - S 0.003最大 - Cr 1.5-2.80 - Mo 0.90-1.80 - Ni 10-13 - Co 14.0-22.0 - Al 0.1 max。 - Ti 0.05最大 - Ce 0.030最大 - La 0.010最大 - 平衡基本上是铁。 此外，铈和硫是平衡的，使得Ce / S的比例为至少约2并且不超过约15.可以存在少量但有效量的钙代替一些或全部铈和镧。
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3.发明授权
公开(公告)号：US5002729A
公开(公告)日：1991-03-26
申请号：US389503
申请日：1989-08-04
申请人： David E. Wert , Raymond M. Hemphill
发明人： David E. Wert , Raymond M. Hemphill
CPC分类号： C22C38/30 , C22C38/52 , F16C2204/70 , F16C33/64
摘要： This invention provides a case hardening steel alloy and articles made therefrom which, when case hardened and heat treated, have high case hardness, corrosion resistance, high temperature capability and metal-to-metal wear resistance and high core ductility, impact toughness and fracture toughness. The alloy contains about 0.05-0.1 w/o C, 0.04 w/o max. N, 1.5 w/o max. Mn, 1 w/o max. Si, 11-15 w/o Cr, 1-3 w/o Mo, 1.5-3.5 w/o Ni, 3-8 w/o Co, 0.1-1 w/o V, and the balance Fe. In a preferred embodiment, the alloy is balanced according to Equation 1 (Eq.1) so that:______________________________________ 3(w/o Cr) + 6(w/o Si) + 2.5 (w/o Mo) + 6(w/o V) - 25(w/o C + N) - 6(w/o Ni) - 2(w/o Mn) - 2(w/o Co) - 21 .ltoreq. 0. ______________________________________
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公开(公告)号：US5370750A
公开(公告)日：1994-12-06
申请号：US148493
申请日：1993-11-08
CPC分类号： C22C38/46 , C22C38/001
摘要： A martensitic steel alloy has a unique combination of hardness and corrosion resistance. Broadly stated, the alloy contains, in weight percent, about______________________________________ C 1.40-1.75 Mn 0.30-1.0 Si 0.80 max. P 0.020 max. S 0.015 max. Cr 13.5-18.0 Ni 0.15-0.65 Mo 0.40-1.50 V 1.0 max. N 0.02-0.08 ______________________________________ and the balance essentially iron. The alloy is balanced within the stated weight percent ranges such that the ratio %Cr:%C is about 10.0-11.0 and the sum %Ni+%Mn is at least about 0.75. The alloy can be hardened to at least about 60 HRC from a wide range of solution treating temperatures and provides corrosion resistance that is similar to Type 440C alloy.
摘要翻译： 马氏体钢合金具有硬度和耐腐蚀性的独特组合。 广义地说，该合金以重量百分比含有约-C1.40-1.75-Mn 0.30-1.0 -Si 0.80最大值。 -P最大0.020 -S 0.015最大 -C 13.15-18.0 -Ni 0.15-0.65-Mo 0.40-1.50 -V 1.0最大 -N 0.02-0.08 - 余量基本上是铁。 所述合金在所述重量百分比范围内平衡，使得Cr％C％的比率为约10.0-11.0，总和％Ni +％Mn为至少约0.75。 该合金可以从宽范围的溶液处理温度硬化至至少约60HRC，并提供类似于440C合金的耐腐蚀性。
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公开(公告)号：US5268044A
公开(公告)日：1993-12-07
申请号：US861977
申请日：1992-06-30
IPC分类号： C22C38/52
CPC分类号： C22C38/52
摘要： A high strength, high fracture toughness steel alloy consisting essentially of, in weight percent, about______________________________________ C 0.2-0.33 Mn 0.20 max. Si 0.1 max. P 0.008 max. S 0.004 max. Cr 2-4 Ni 10.5-15 Mo 0.75-1.75 Co 8-17 Ce Effective amount-0.030 La Effective amount-0.01 Fe Balance ______________________________________ and an article made therefrom are disclosed. A small but effective amount of calcium can be present in this alloy in substitution for some or all of the cerium and lanthanum. The alloy is an age-hardenable martensitic steel alloy which provides a unique combination of tensile strength and fracture toughness. The alloy provides excellent mechanical properties when hardened by vacuum heat treatment with inert gas cooling and has a low ductile-to-brittle transition temperature.
摘要翻译： PCT No.PCT / US91 / 00779 Sec。 371日期：1992年6月30日 102（e）日期1992年6月30日PCT 1991年2月5日PCT。一种高强度，高断裂韧性钢合金，其基本上由重量百分比组成，最大约为-C 0.2-0.33-Mn 0.20。 -Si 0.1最大 -P 0.008最大 -S 0.004最大 -C 2-4 - 10.5-15-Mo 0.75-1.75 -Co 8-17 -Ce有效量-0.030 -La有效量-01-Fe余量以及由其制成的制品。 在该合金中可以存在少量但有效量的钙以代替一些或全部铈和镧。 该合金是老化硬化的马氏体钢合金，提供了拉伸强度和断裂韧性的独特组合。 该合金通过用惰性气体冷却进行真空热处理而硬化并具有低的延性至脆性转变温度，提供优异的机械性能。
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公开(公告)号：US4886640A
公开(公告)日：1989-12-12
申请号：US234901
申请日：1988-08-22
申请人： Harrison A. Garner, Jr. , Raymond M. Hemphill , John F. McGraw , Michael L. Schmidt , Bruce A. Smith , David E. Wert
发明人： Harrison A. Garner, Jr. , Raymond M. Hemphill , John F. McGraw , Michael L. Schmidt , Bruce A. Smith , David E. Wert
摘要： An improved hot work tool steel has higher hardness capability and better temper resistance above 1100 F. and better wear resistance than AISI type H13 and better toughness and ductility then AISI type H10 or type H21. The steel alloy contains essentially the following in weight percent:______________________________________ Carbon 0.55 Max. Manganese 1.5 Max. Silicon 2.0 Max. Chromium 3.5-6.0 Molybdenum 1.5-3.0 Vanadium 0.50-1.50 ______________________________________ and the balance is essentially iron except for the usual impurities found in commerical grades of hot work tool steels. Carbon and chromium are balanced within the composition such that% carbon.gtoreq.0.098.times.% chromium.
摘要翻译： 改进的热加工工具钢具有较高的硬度能力和高于1100°F的较好的回火韧性，耐磨性能优于AISI型H13，而且具有更好的韧性和延展性，然后AISI型H10或H21型。 钢合金基本上含有以下重量百分比： - 碳0.55最大。 - 锰1.5最大 - 硅2.0最大 - 铬3.5-6.0 - 钼1.5-3.0 - 钒0.50-1.50 - 余量基本上是铁，除了在工作级别的热作工具钢中发现的常见杂质。 碳和铬在组合物中是平衡的，使得％碳= 0.098x％的铬。
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公开(公告)号：US4853181A
公开(公告)日：1989-08-01
申请号：US875648
申请日：1986-06-18
申请人： David E. Wert , Raymond M. Hemphill
发明人： David E. Wert , Raymond M. Hemphill
摘要： A hot work tool steel has high hardness capability and improved toughness when air cooled in section sizes of 6 inches (15.24 cm) or larger. The alloy steel which is deep air hardenable, has good dimensional stability and exceptional wear resistance, in its broad scope consists essentially of about 0.35-0.6 w/o carbon, 1.0 w/o max. manganese, 2.0 w/o max. silicon, 5.7-7.0 w/o chromium, 1.65-2.2 w/o molybdenum, 0.6-1.1 w/o vanadium, and the balance is iron except for the usual impurities found in commercial grades of such alloy steels.
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公开(公告)号：US5087415A
公开(公告)日：1992-02-11
申请号：US475773
申请日：1990-02-06
申请人： Raymond M. Hemphill , David E. Wert
发明人： Raymond M. Hemphill , David E. Wert
IPC分类号： C22C38/52
CPC分类号： C22C38/52
摘要： A high strength, high fracture toughness structural steel alloy consisting essentially of, in weight percent, about______________________________________ C 0.2-0.33 Cr 2-4 Ni 10.5-15 Mo 0.75-1.75 Co 8-17 Fe Balance ______________________________________ and an article made therefrom are disclosed. The alloy is an age-hardenable martensitic steel alloy whcih provides a unique combination of tensile strength and fracture toughness. The alloy provides excellent mechanical properties when hardened by vacuum heat treatment with inert gas cooling and has a low ductile-to-brittle transition temperature.
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