Manufacturing method of high strength ferritic/martensitic steels
    1.
    发明授权
    Manufacturing method of high strength ferritic/martensitic steels 有权
    高强度铁素体/马氏体钢的制造方法

    公开(公告)号:US08444782B2

    公开(公告)日:2013-05-21

    申请号:US12612101

    申请日:2009-11-04

    IPC分类号: C21D8/00

    摘要: Provided is a method of manufacturing a high strength ferritic/martensitic steel. The method includes melting a ferritic/martensitic steel, hot-working the melted ferritic/martensitic steel, normalizing the hot-worked ferritic/martensitic steel at a temperature of about 1050° C. to about 1200° C., tempering the ferritic/martensitic steel at a temperature of about 600° C. or less, and leaving MX precipitates while preventing a M23C6 precipitate from being precipitated, and cold-working and thermal-treating the ferritic/martensitic steel in a multistage fashion, and precipitating M23C6 precipitates. Through the above described configuration, the high strength ferritic/martensitic steel that prevents a ductility from being deteriorated even in a high-temperature environment may be manufactured.

    摘要翻译: 提供一种制造高强度铁素体/马氏体钢的方法。 该方法包括熔化铁素体/马氏体钢,对熔融的铁素体/马氏体钢进行热加工,使热处理的铁素体/马氏体钢在约1050℃至约1200℃的温度下归一化,回火铁素体/马氏体 钢在约600℃以下,留下MX析出物,同时防止M23C6沉淀物析出,并对铁素体/马氏体钢进行多级冷加工和热处理,并析出M23C6沉淀物。 通过上述结构,可以制造即使在高温环境下也能够防止延展性劣化的高强度铁素体/马氏体钢。

    High Fe contained zirconium alloy compositions having excellent corrosion resistance and preparation method thereof
    5.
    发明申请
    High Fe contained zirconium alloy compositions having excellent corrosion resistance and preparation method thereof 有权
    高Fe含有具有优异耐腐蚀性的锆合金组合物及其制备方法

    公开(公告)号:US20080192880A1

    公开(公告)日:2008-08-14

    申请号:US11734288

    申请日:2007-04-12

    IPC分类号: G21C3/07

    CPC分类号: G21C3/07 Y02E30/40

    摘要: A high Fe-containing zirconium composition having excellent corrosion resistance and a preparation method thereof. Specifically, disclosed are a high Fe-containing zirconium composition having excellent corrosion resistance and a preparation method thereof, the composition comprising: 0.5-1.0 wt % iron; 0.25-0.5 wt % chromium; 0.06-0.18 wt % oxygen; at least one element selected from the group consisting of 0.2-0.5 wt % tin, 0.1-0.3 wt % niobium and 0.05-0.3 wt % copper; and the balance of zirconium. The zirconium alloy has excellent corrosion resistance, and thus can be used as a material for nuclear fuel claddings, spacer grids and nuclear reactor core structures in light water reactor and heavy water reactor nuclear power plants.

    摘要翻译: 具有优异耐腐蚀性的高含铁锆组合物及其制备方法。 具体地,公开了具有优异耐腐蚀性的高含铁锆组合物及其制备方法,所述组合物包含:0.5-1.0重量%的铁; 0.25-0.5重量%铬; 0.06-0.18重量%氧气; 选自由0.2-0.5重量%锡,0.1-0.3重量%铌和0.05-0.3重量%铜组成的组中的至少一种元素; 和锆的平衡。 锆合金具有优异的耐腐蚀性,因此可用作轻水反应堆和重水反应堆核电站中核燃料包层,间隔栅格和核反应堆核心结构的材料。

    MANUFACTURING METHOD OF HIGH STRENGTH FERRITIC/MARTENSITIC STEELS
    9.
    发明申请
    MANUFACTURING METHOD OF HIGH STRENGTH FERRITIC/MARTENSITIC STEELS 有权
    高强度铁素体/马氏体钢的制造方法

    公开(公告)号:US20100108207A1

    公开(公告)日:2010-05-06

    申请号:US12612101

    申请日:2009-11-04

    IPC分类号: C21D8/00

    摘要: Provided is a method of manufacturing a high strength ferritic/martensitic steel. The method includes melting a ferritic/martensitic steel, hot-working the melted ferritic/martensitic steel, normalizing the hot-worked ferritic/martensitic steel at a temperature of about 1050° C. to about 1200° C., tempering the ferritic/martensitic steel at a temperature of about 600° C. or less, and leaving MX precipitates while preventing a M23C6 precipitate from being precipitated, and cold-working and thermal-treating the ferritic/martensitic steel in a multistage fashion, and precipitating M23C6 precipitates. Through the above described configuration, the high strength ferritic/martensitic steel that prevents a ductility from being deteriorated even in a high-temperature environment may be manufactured.

    摘要翻译: 提供一种制造高强度铁素体/马氏体钢的方法。 该方法包括熔化铁素体/马氏体钢,对熔融的铁素体/马氏体钢进行热加工,使热处理的铁素体/马氏体钢在约1050℃至约1200℃的温度下归一化,回火铁素体/马氏体 钢在约600℃以下,留下MX析出物,同时防止M23C6沉淀物析出,并对铁素体/马氏体钢进行多级冷加工和热处理,并析出M23C6沉淀物。 通过上述结构,可以制造即使在高温环境下也能够防止延展性劣化的高强度铁素体/马氏体钢。

    ZIRCONIUM ALLOY COMPOSITION HAVING EXCELLENT CORROSION RESISTANCE FOR NUCLEAR APPLICATIONS AND METHOD OF PREPARING THE SAME
    10.
    发明申请
    ZIRCONIUM ALLOY COMPOSITION HAVING EXCELLENT CORROSION RESISTANCE FOR NUCLEAR APPLICATIONS AND METHOD OF PREPARING THE SAME 审中-公开
    用于核应用的具有优异耐腐蚀性的锆合金组合物及其制备方法

    公开(公告)号:US20080131306A1

    公开(公告)日:2008-06-05

    申请号:US11734318

    申请日:2007-04-12

    IPC分类号: C22C16/00 C22F1/16

    摘要: The present invention relates to a zirconium alloy composition having excellent corrosion resistance for nuclear applications and a method of preparing the same. The zirconium alloy composition having excellent corrosion resistance for nuclear applications includes 1.3˜2.0 wt % of niobium, 0.05˜0.18 wt % of iron, 0.008˜0.012 wt % of silicon, 0.008˜0.012 wt % of carbon, and 0.1˜0.16 wt % of oxygen, with the balance being zirconium, or includes 2.8˜3.5 wt % of niobium, 0.2˜0.7 wt % of at least one of iron and copper, 0.008˜0.012 wt % of silicon, 0.008˜-0.012 wt % of carbon, and 0.1˜0.16 wt % of oxygen, with the balance being zirconium. The zirconium alloy composition according to the present invention, in which the amount of niobium, acting as a first alloying element, and the amount of at least one of iron and copper, acting as a second alloying element, are appropriately controlled, and silicon, carbon and oxygen are added in appropriate amounts, can exhibit excellent corrosion resistance, and thus can be usefully used as materials for nuclear fuel cladding tubes, support ribs, and core components of light water reactors and heavy water reactors.

    摘要翻译: 本发明涉及对核应用具有优异的耐腐蚀性的锆合金组合物及其制备方法。 对于核应用具有优异的耐腐蚀性的锆合金组合物包括铌的1.3〜2.0重量%,铁的0.05〜0.18重量%,硅的0.008〜0.012重量%,碳的0.008〜0.012重量%和碳0.1〜0.16重量% 的氧,余量为锆,或包含2.8〜3.5重量%的铌,0.2〜0.7重量%的铁和铜中的至少一种,0.008〜0.012重量%的硅,0.008〜-0.12重量%的碳, 和0.1〜0.16重量%的氧,余量为锆。 根据本发明的锆合金组合物,其中适当地控制充当第一合金元素的铌的量和用作第二合金元素的铁和铜中的至少一种的量,硅, 以适当的量添加碳和氧,可以表现出优异的耐腐蚀性,因此可以有效地用作核燃料包覆管,支撑肋和轻水反应堆和重水反应堆的核心部件的材料。