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公开(公告)号：US09505087B2
公开(公告)日：2016-11-29
申请号：US14350985
申请日：2012-11-21
申请人： Kobe Steel, Ltd.
IPC分类号： C22C38/22 , C22C38/24 , C22C38/26 , B23K35/22 , B23K35/30 , B23K9/23 , C22C38/54 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , B23K35/365 , C21D9/50 , B23K35/36 , C22C38/50 , B23K35/02
CPC分类号： B23K35/3086 , B23K9/23 , B23K35/0261 , B23K35/0266 , B23K35/30 , B23K35/3053 , B23K35/308 , B23K35/3093 , B23K35/3602 , B23K35/365 , B23K2103/04 , C21D9/50 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , Y10T403/478
摘要： A weld metal according to the present invention has a specific chemical composition, contains carbide particles each having an equivalent circle diameter of greater than 0.5 μm in a number of 0.25 or less per micrometer of grain boundary length, and has an A-value as specified by Formula (1) of 0.12 or more, Formula (1) expressed as follows: A-value=([V]/51+[Nb]/93)/([Cr]/52+[Mo]/96) (1) where [V], [Nb], [Cr], and [Mo] are contents (percent by mass) of V, Nb, Cr, and Mo, respectively, in the weld metal.
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公开(公告)号：US20140294491A1
公开(公告)日：2014-10-02
申请号：US14350985
申请日：2012-11-21
IPC分类号： B23K35/30
CPC分类号： B23K35/3086 , B23K9/23 , B23K35/0261 , B23K35/0266 , B23K35/30 , B23K35/3053 , B23K35/308 , B23K35/3093 , B23K35/3602 , B23K35/365 , B23K2103/04 , C21D9/50 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , Y10T403/478
摘要： A weld metal according to the present invention has a specific chemical composition, contains carbide particles each having an equivalent circle diameter of greater than 0.5 μm in a number of 0.25 or less per micrometer of grain boundary length, and has an A-value as specified by Formula (1) of 0.12 or more, Formula (1) expressed as follows: A-value=([V]/51+[Nb]/93)/([Cr]/52+[Mo]/96) (1) where [V], [Nb], [Cr], and [Mo] are contents (percent by mass) of V, Nb, Cr, and Mo, respectively, in the weld metal.
摘要翻译： 根据本发明的焊接金属具有特定的化学组成，包含每微米晶界长度为0.25或更小的等效圆直径大于0.5μm的碳化物颗粒，并且具有指定的A值 式（1）为0.12以上，式（1）表示如下：A值=（[V] / 51 + [Nb] / 93）/（[Cr] / 52 + [Mo] / 96） 1）其中[V]，[Nb]，[Cr]和[Mo]分别为焊接金属中V，Nb，Cr和Mo的含量（质量％）。
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公开(公告)号：US09879335B2
公开(公告)日：2018-01-30
申请号：US14655412
申请日：2014-02-03
申请人： KOBE STEEL, LTD.
IPC分类号： C22C38/54 , B23K35/36 , C22C38/00 , B23K35/30 , C22C38/02 , C22C38/04 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50
CPC分类号： C22C38/54 , B23K35/308 , B23K35/3602 , B23K35/3605 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50
摘要： This welded structure comprises a weld metal which contains C, Si, Mn, Cr, Mo, V, Nb, N and O in prescribed amounts respectively with the balance being Fe and unavoidable impurities and which exhibits an A value of 200 or more and a Z value of 0.05 or more. The A value is calculated from the element contents of the weld metal according to the formula: A value=([V]/51+[Nb]/93)/{[V]×([Cr]/5+[Mo]/2)}×104. The Z value is calculated according to the formula: Z value=N×[insol. V] [wherein N (particles/μm) is the number density of carbide particles present in a prior austenite grain boundary per unit grain boundary in the stress-relief annealed weld metal, and [insol. V] is the concentration of compound-type V as determined by analyzing an extraction residue of the stress-relief annealed weld metal].
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