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31. 发明公开

EP3112082A1 WELDED JOINT AND METHOD FOR PRODUCING WELDED JOINT 有权转让
标题翻译：瑞士维多利亚州立大学EERER SCHWEISSVERBINDUNG
公开(公告)号：EP3112082A1
公开(公告)日：2017-01-04
申请号：EP15756051.7
申请日：2015-02-20
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： JOTOKU, Kana , HIRATA, Hiroyuki , OMURA, Tomohiko , NAKAMURA, Jun , OSUKI, Takahiro
IPC分类号： B23K35/30 , B23K9/23 , C22C38/58
CPC分类号： B23K35/3066 , B23K9/167 , B23K9/173 , B23K9/23 , B23K35/30 , B23K35/3086 , B23K2101/10 , B23K2103/04 , B23K2201/10 , B23K2203/04 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/58
摘要： A welded joint having high strength and good hydrogen embrittlement resistance is provided. A welded joint is a welded joint obtained by welding a base material using a welding material. The base material has a chemical composition of, in mass%: C: 0.005 to 0.1 %; Si: up to 1.2 %; Mn: 2.5 to 6.5 %; Ni: 8 to 15 %; Cr: 19 to 25 %; Mo: 0.01 to 4.5 %; V: 0.01 to 0.5 %; Nb: 0.01 to 0.5 %; Al: less than 0.05 %; N: 0.15 to 0.45 %; O: up to 0.02 %; P: up to 0.05 %; and S: up to 0.04 %, and a balance being iron and impurities, and which satisfies Equation (1). The welding material has a chemical composition which satisfies Equations (1) and (2).

Ni+0.65Cr+0,98Mo+1.05Mn+0.35Si+12.6C≥29 ... (1)

0.31C+0.048Si-0.02Mn-0.056Cr+0.007Ni-0.013Mo≤1.0 ... (2)
摘要翻译：提供了具有高强度和良好耐氢脆性的焊接接头。焊接接头是通过使用焊接材料焊接基材而获得的焊接接头。基材的质量％为C：0.005〜0.1％的化学组成; Si：高达1.2％; Mn：2.5〜6.5％ Ni：8〜15％ Cr：19〜25％ Mo：0.01〜4.5％ V：0.01〜0.5％ Nb：0.01〜0.5％ Al：小于0.05％; N：0.15〜0.45％ O：高达0.02％; P：高达0.05％; 和S：高达0.04％，余量为铁和杂质，并且满足等式（1）。焊接材料具有满足等式（1）和（2）的化学组成。 €ƒ€€ƒ€ƒ€ƒ€ƒ€ƒNi+ 0.65Cr + 0,98Mo + 1.05Mn + 0.35Si + 12.6C‰¥29 ...€ƒ€ƒ€ƒ€ƒ（1 ）€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ0.31C+ 0.048Si-0.02Mn-0.056Cr + 0.007Ni-0.013Mo‰¤1.0...€ƒ€ƒ€ƒ€ƒ （2）

32. 发明公开

EP2781612A1 SEAMLESS AUSTENITE HEAT-RESISTANT ALLOY TUBE 有权转让
标题翻译：澳大利亚知识产权组织LEGIERUNGSROHR
公开(公告)号：EP2781612A1
公开(公告)日：2014-09-24
申请号：EP12850463.6
申请日：2012-11-07
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： JOUTOKU, Kana , ISEDA, Atsuro , OKADA, Hirokazu , HIRATA, Hiroyuki , YOSHIZAWA, Mitsuru
IPC分类号： C22C19/05 , C22C30/00 , C22C30/02
CPC分类号： C22C19/05 , C22C19/053 , C22C19/055 , C22C19/058 , C22C30/00 , C22C30/02 , C22F1/10
摘要： A seamless austenitic heat-resistant alloy tube used by fillet-welding the outer surface thereof directly, having a chemical composition consisting, by mass percent, of C: 0.03-0.15%, Si≤1%, Mn≤2%, P≤0.03%, S≤0.01%, Ni: 35-60%, Cr: 18-38%, W: 3-11%, Ti: 0.01-1.2%, Al≤0.5%, B: 0.0001-0.01%, N≤0.02%, and 0≤0.008%, and at least one element selected from Zr: 0.01-0.5%, Nb: 0.01-0.5%, and V: 0.01-0.5%, with the balance being Fe and impurities, wherein an average grain diameter d µm at the center of the wall thickness of the tube is 1000 µm or smaller and satisfies the formula (d≤1500-2.5×10 5 ×B), the thickness of an oxide layer on the outer surface of the tube is 15 µm or smaller. The tube of the present invention is excellent in weld crack resistance and capable of restraining the generation of cracks in a HAZ at the time of welding.
摘要翻译：一种无缝奥氏体耐热合金管，其直接焊接外表面，其质量百分比为C：0.03-0.15％，Si‰¤1％，Mn‰¤2％，P ‰¤0.03％，‰‰0.01％，Ni：35-60％，Cr：18-38％，W：3-11％，Ti：0.01-1.2％，Al‰‰0.5％，B：0.0001-0.01 ％，N≤0.02％，0‰0.008％，选自Zr：0.01-0.5％，Nb：0.01-0.5％，V：0.01-0.5％中的至少一种元素，余量为Fe和杂质，其中管的壁厚中心处的平均粒径dμm为1000μm以下，满足式（d‰×1500〜2.5×10 5×B），氧化物层的厚度管的外表面为15μm以下。本发明的管材具有优异的耐焊缝裂纹性，并且能够在焊接时抑制HAZ中的裂缝的产生。

33. 发明公开

EP2730365A1 AUSTENITE STEEL WELDED JOINT 有权转让
标题翻译：澳门特别行政区澳门特别行政区
公开(公告)号：EP2730365A1
公开(公告)日：2014-05-14
申请号：EP12807616.3
申请日：2012-06-20
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HIRATA, Hiroyuki , OMURA, Tomohiko , TOMIO, Yusaku , NAKAMURA, Jun
IPC分类号： B23K35/30 , B23K9/167 , B23K9/23 , C22C38/58
CPC分类号： B23K9/167 , B23K35/3053 , B23K35/308 , B23K35/3086 , B23K2201/04 , B23K2201/06 , B23K2201/10 , C21D9/50 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/58 , Y10T403/479 , Y10T428/12965 , Y10T428/12972 , Y10T428/12979
摘要： An austenitic steel welded joint is produced by welding base metal of austenitic steel having a certain chemical composition with a gas tungsten arc welding process which uses welding material of austenitic steel having a certain chemical composition. A chemical composition of weld metal comprises: C ≤ 0.1%; Si ≤ 0.8%; Mn: 1.5 to 5.5%; Ni: 8 to 15%; Cr: 18 to 24%; Al
摘要翻译：通过使用具有一定化学成分的奥氏体钢的母材与使用具有一定化学成分的奥氏体钢的焊接材料的气体钨电弧焊接工艺来制造奥氏体钢焊接接头。焊接金属的化学成分包括：C‰¤0.1％; Si‰¤0.8％; Mn：1.5〜5.5％ Ni：8〜15％ Cr：18〜24％ Al <0.05％; N：0.15〜0.35％如有必要，V‰0.5％，Nb‰0.5％，Mo‰4.5％，余量为Fe和杂质含‰0.02％，P‰‰0.05％，S‰0.03 ％，该化学成分满足[413 - 462（C + N） - 9.2Si - 8.1Mn - 13.7Cr - 9.5Ni - 18.5Mo‰-70]。焊接金属的铁素体的面积比为20％以下。奥氏体钢焊接接头具有高强度和优异的耐氢脆性，这是在不进行后焊接热处理的情况下在高压氢气管道中所需的特性。

34. 发明公开

EP2615188A1 AUSTENITIC STAINLESS STEEL 审中-公开
标题翻译：奥氏体不锈钢
公开(公告)号：EP2615188A1
公开(公告)日：2013-07-17
申请号：EP11817199.0
申请日：2011-11-18
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： ISEDA, Atsuro , NISHIYAMA, Yoshitaka , SETO, Masahiro , YAMAMOTO, Satomi , HIRATA, Hiroyuki , NOGUCHI, Yasutaka , YOSHIZAWA, Mitsuru , MATSUO, Hiroshi
IPC分类号： C22C38/00 , C22C38/40 , C21D7/06 , C22C38/58
CPC分类号： C22C38/42 , C21D6/004 , C21D7/06 , C21D9/08 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , Y10T428/12653
摘要： To provide an austenitic stainless steel which has an excellent high-temperature corrosion thermal fatigue cracking resistance.
An austenitic stainless steel containing, by mass%, Cr: 15.0 to 23.0%, and Ni: 6.0 to 20.0%, wherein a near-surface portion is covered with a worked layer with high energy density having an average thickness of 5 to 30 µm.
摘要翻译：提供一种具有优异的高温耐腐蚀热疲劳裂纹性能的奥氏体不锈钢。以质量％计含有Cr：15.0〜23.0％，Ni：6.0〜20.0％的奥氏体系不锈钢，其中近表面部被高能量密度的加工层覆盖，平均厚度为5〜30μm 。

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