Steel for welded structure and producing method thereof
    3.
    发明授权
    Steel for welded structure and producing method thereof 有权
    焊接结构钢及其制造方法

    公开(公告)号:US08668784B2

    公开(公告)日:2014-03-11

    申请号:US13138119

    申请日:2010-05-18

    IPC分类号: C22C38/08 C22C38/14 C21D8/00

    摘要: A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.015 to 0.045%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.5 to 2.0%; Ni at a Ni content [Ni] of 0.10 to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; O at an O content [O] of 0.0015 to 0.0035%; and N at a N content [N] of 0.002 to 0.006%, and a balance composed of Fe and unavoidable impurities. In the steel for a welded structure, the P content [P] is limited to 0.008% or less, the S content [S] is limited to 0.005% or less, the Al content [Al] is limited to 0.004% or less, the Nb content [Nb] is limited to 0.005% or less, the Cu content [Cu] is limited to 0.24% or less, the V content [V] is limited to 0.020% or less, and a steel composition parameter PCTOD is 0.065% or less, and a steel composition hardness parameter CeqH is 0.235% or less.

    摘要翻译: 用于焊接结构的钢包括以质量%计的C含量[C]为C = 0.015〜0.045%的组成: Si含量[Si]为0.05〜0.20%的Si; Mn含量[Mn]为1.5〜2.0%的Mn; Ni量[Ni]为0.10〜1.50%的Ni; Ti含量[Ti]为0.005〜0.015%的Ti; O的含量[O]为0.0015〜0.0035%; N为N,0.002〜0.006%,余量由Fe和不可避免的杂质构成。 在焊接结构钢中,P含量[P]限制在0.008%以下,S含量[S]限制在0.005%以下,Al含量[Al]限定在0.004%以下, 将Nb含量[Nb]限制在0.005%以下,将Cu含量[Cu]限制在0.24%以下,将V含量[V]限制在0.020%以下,钢结构参数PCTOD为0.065 %以下,钢组合物硬度参数CeqH为0.235%以下。

    STEEL SUPERIOR IN CTOD PROPERTIES OF WELD HEAT-AFFECTED ZONE AND METHOD OF PRODUCTION OF SAME
    4.
    发明申请
    STEEL SUPERIOR IN CTOD PROPERTIES OF WELD HEAT-AFFECTED ZONE AND METHOD OF PRODUCTION OF SAME 有权
    焊接热影响区CTOD特性中的钢铁及其生产方法

    公开(公告)号:US20100008815A1

    公开(公告)日:2010-01-14

    申请号:US12448582

    申请日:2008-12-04

    IPC分类号: C22C38/16 B22D11/00

    摘要: The present invention provides high strength steel having unprecedentedly superior CTOD (fracture toughness) properties satisfying not only the CTOD properties of the FL zone at −60° C., but also the CTOD properties of the ICHAZ zone in small and medium heat input multilayer welding etc. and a method of production of the same.The steel of the present invention is steel superior in CTOD properties of the heat-affected zone containing, by mass %, C: 0.015 to 0.045%, Si: 0.05 to 0.2%, Mn: 1.5 to 2.0%, Cu: 0.25 to 0.5%, Ni: 0.7 to 1.5%, P: 0.008% or less, S: 0.005% or less, Al: 0.004% or less, Ti: 0.005 to 0.015%, Nb: 0.005% or less, 0: 0.0015 to 0.0035%, and N: 0.002 to 0.006%, PCTOD: 0.065 or less, CeqH: 0.235 or less and the balance consisting of Fe and unavoidable impurities.

    摘要翻译: 本发明提供了具有前所未有的优异的CTOD(断裂韧性)性能的高强度钢,其不仅满足-60℃下FL区域的CTOD性能,而且满足中小型热输入多层焊接中ICHAZ区域的CTOD特性 等等及其生产方法。 本发明的钢是热影响区的CTOD特性优异的钢,以质量%计含有C:0.015〜0.045%,Si:0.05〜0.2%,Mn:1.5〜2.0%,Cu:0.25〜0.5 %,Ni:0.7〜1.5%,P:0.008%以下,S:0.005%以下,Al:0.004%以下,Ti:0.005〜0.015%,Nb:0.005%以下,0:0.0015〜0.0035% ,N:0.002〜0.006%,PCTOD:0.065以下,CeqH:0.235以下,余量由Fe和不可避免的杂质构成。

    Evaluation apparatus for cleanliness of metal and method thereof
    5.
    发明授权
    Evaluation apparatus for cleanliness of metal and method thereof 有权
    金属清洁度评价装置及其方法

    公开(公告)号:US06555063B1

    公开(公告)日:2003-04-29

    申请号:US09374826

    申请日:1999-08-13

    IPC分类号: G01N3300

    摘要: In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and directly analyzing a curved and non-smooth sample surface after solidification by a fluorescent X-ray analysis method using an energy dispersion type spectroscope, or by other chemical or physical measurements, to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.

    摘要翻译: 为了快速,经济地评估具有高代表性的金属的清洁度,当金属中存在的非金属夹杂物颗粒的数量,组成等等,并且由金属制造过程中收集的样品评估产品缺陷时 本发明提供一种评价方法,包括以下步骤:通过冷坩埚悬浮熔化装置将金属片悬浮熔融预定时间,将包含在金属片中的非金属夹杂物颗粒排出到熔融金属表面;以及 通过使用能量分散型分光器的荧光X射线分析方法或通过其他化学或物理测量直接分析固化后的弯曲和非平滑样品表面,以测量或分析构成非金属夹杂物颗粒的元素的量 并确定非金属夹杂物的数量。

    Ti-Al intermetallic compound with Se
    7.
    发明授权
    Ti-Al intermetallic compound with Se 失效
    Ti-Al金属间化合物

    公开(公告)号:US5348594A

    公开(公告)日:1994-09-20

    申请号:US58840

    申请日:1993-05-06

    IPC分类号: C22C14/00

    CPC分类号: C22C14/00

    摘要: A Ti--Al intermetallic compound has a compressibility of at least 25% at room temperature and a superior high temperature oxidation resistance and consists essentially of about 40 to 52 atomic percent of Ti, about 48 to 60 atomic percent of Al, and 10 to 1000 atomic ppm of at least one of P, As, Se, or Te.

    摘要翻译: Ti-Al金属间化合物在室温下具有至少25%的压缩性和优异的高温抗氧化性,并且基本上由约40至52原子%的Ti,约48至60原子%的Al和10至1000 P,As,Se或Te中的至少一个的原子ppm。