High strength, high fracture toughness structural alloy
    2.
    发明授权
    High strength, high fracture toughness structural alloy 失效
    高强度,高断裂韧性结构合金

    公开(公告)号:US5087415A

    公开(公告)日:1992-02-11

    申请号:US475773

    申请日:1990-02-06

    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.

    High strength, high fracture toughness alloy
    3.
    发明授权
    High strength, high fracture toughness alloy 失效
    高强度,高断裂韧性合金

    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。

    Hot work tool steel with good temper resistance
    4.
    发明授权
    Hot work tool steel with good temper resistance 失效
    耐热工具钢,耐回火性好

    公开(公告)号:US4886640A

    公开(公告)日:1989-12-12

    申请号:US234901

    申请日:1988-08-22

    IPC分类号: C22C38/22 C22C38/24

    CPC分类号: C22C38/22 C22C38/24

    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。

    Hot work tool steel
    5.
    发明授权
    Hot work tool steel 失效
    热作工具钢

    公开(公告)号:US4853181A

    公开(公告)日:1989-08-01

    申请号:US875648

    申请日:1986-06-18

    IPC分类号: C22C38/22 C22C38/24

    CPC分类号: C22C38/24 C22C38/22

    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.

    High-hardness powder metallurgy tool steel and article made therefrom
    6.
    发明授权
    High-hardness powder metallurgy tool steel and article made therefrom 有权
    高硬度粉末冶金工具钢及其制品

    公开(公告)号:US06482354B1

    公开(公告)日:2002-11-19

    申请号:US09890039

    申请日:2001-07-26

    IPC分类号: C22C3822

    摘要: A tool steel alloy having a unique combination of hardness and toughness is disclosed. The alloy contains, in weight percent, about: wt. % C 1.85-2.30, Mn 0.15-1.0, Si 0.15-1.0, P 0.030 max., S 0-0.30, Cr 3.7-5.0, Ni+Cu 0.75 max., Mo 1.0 max., Co 6-12, W 12.0-13.5, V 4.5-7.5. The balance is essentially iron and usual impurities. The elements C, Cr, Mo, W, and V are balanced in this alloy such that −0.05≦&Dgr;C≦−0.42 where &Dgr;C=((0.033W)+(0.063Mo)+(0.06Cr)+(0.2V))−C. A powder metallurgy tool steel article made from consolidated alloy powder having the aforesaid weight percent composition provides a Rockwell C hardness of at least about 69.5 when heat treated.

    摘要翻译: 公开了具有硬度和韧性独特组合的工具钢合金。 该合金以重量百分数计包含约: %C 1.85-2.30,Mn 0.15-1.0,Si 0.15-1.0,P 0.030最大,S 0-0.30,Cr 3.7-5.0,Ni + Cu 0.75最大,Mo 1.0最大,Co 6-12,W 12.0 -13.5,V 4.5-7.5。 平衡基本上是铁和通常的杂质。 元素C,Cr,Mo,W和V在该合金中平衡,使得-0.05 <= DELTAC <= -0.42其中DELTAC =((0.033W)+(0.063Mo)+(0.06Cr)+(0.2V ))-C。 由具有上述重量百分比组成的固结合金粉末制成的粉末冶金工具钢制品在热处理时提供至少约69.5的洛氏硬度。

    Age hardenable alloy with a unique combination of very high strength and
good toughness
    7.
    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。

    Case hardenable corrosion resistant steel alloy and article made
therefrom
    8.
    发明授权
    Case hardenable corrosion resistant steel alloy and article made therefrom 失效
    表壳硬化耐腐蚀钢合金及其制品

    公开(公告)号:US5002729A

    公开(公告)日:1991-03-26

    申请号:US389503

    申请日:1989-08-04

    IPC分类号: C22C38/00 C22C38/30 C22C38/52

    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. ______________________________________