公开(公告)号：US10119186B2

公开(公告)日：2018-11-06

申请号：US14450453

申请日：2014-08-04

申请人： Kenji Sugiyama ,  Shigeki Ueta

发明人： Kenji Sugiyama ,  Shigeki Ueta

IPC分类号： C22C38/00 ,  C22C38/14 ,  C22C38/50 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/28 ,  C22C38/44 ,  C22C38/52 ,  C22C38/54 ,  C22C38/06 ,  C22C38/10

摘要： Provided is a maraging steel excellent in fatigue characteristics, including, in terms of % by mass: C: ≤0.015%, Ni: from 12.0 to 20.0%, Mo: from 3.0 to 6.0%, Co: from 5.0 to 13.0%, Al: from 0.01 to 0.3%, Ti: from 0.2 to 2.0%, O: ≤0.0020%, N: ≤0.0020%, and Zr: from 0.001 to 0.02%, with the balance being Fe and unavoidable impurities.

公开(公告)号：US08696836B2

公开(公告)日：2014-04-15

申请号：US11365511

申请日：2006-03-02

申请人： Noritaka Takahata ,  Michiharu Ogawa ,  Shigeki Ueta ,  Tetsuya Shimizu

发明人： Noritaka Takahata ,  Michiharu Ogawa ,  Shigeki Ueta ,  Tetsuya Shimizu

IPC分类号： C22F1/10 ,  C22C19/05

CPC分类号： C22C19/058

摘要： The present invention provides a nonmagnetic high-hardness alloy having a Ni-based alloy composition containing; by weight %, C of 0.1% or less: Si of 2.0% or less; Mn of 2.0% or less; P of 0.03% or less; S of 0.01% or less; Cr of 30 to 45%; Al of 1.5 to 5.0%; and a balance of unavoidable impurities and Ni, the nonmagnetic high-hardness alloy being subjected to cold or warm plastic working and then ageing treatment, and a method for producing the nonmagnetic high-hardness alloy.

摘要翻译： 本发明提供一种含有Ni基合金组成的非磁性高硬度合金， ，C：0.1％以下：Si：2.0％以下; Mn为2.0％以下; 0.03％以下; S为0.01％以下; 30〜45％的Cr Al为1.5〜5.0％; 和不可避免的杂质和Ni的平衡，非磁性高硬度合金进行冷或热塑性加工，然后进行时效处理，以及非磁性高硬度合金的制造方法。

公开(公告)号：US20070284018A1

公开(公告)日：2007-12-13

申请号：US11808614

申请日：2007-06-12

申请人： Shuji Hamano ,  Shigeki Ueta ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Takashi Nakano ,  Shin Nishimoto

发明人： Shuji Hamano ,  Shigeki Ueta ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： C22C19/05

CPC分类号： C22C19/056 ,  C22C19/055

摘要： The present invention relates to a low thermal expansion Ni-base superalloy containing, in terms of mass %, C: 0.15% or less; Si: 1% or less; Mn: 1% or less; Cr: 5% or more but less than 20%; at least one of Mo, W and Re, in which Mo+½(W+Re) is 5% or more but less than 20%; W: 10% or less; Al: 0.1 to 2.5%; Ti: 0.10 to 0.95%; Nb+½Ta: 1.5% or less; B: 0.001 to 0.02%; Zr: 0.001 to 0.2%; Fe: 4.0% or less; and a balance of inevitable impurities and Ni, in which the total amount of Al, Ti, Nb and Ta is 2.0 to 6.5% in terms of atomic %. The low thermal expansion Ni-base superalloy of the present invention has a thermal expansion coefficient almost equal to that of 12 Cr ferritic steel, excellent high temperature strength, excellent corrosion and oxidation resistance, good hot-workability, and excellent weldability.

摘要翻译： 本发明涉及以质量％计含有C：0.15％以下的低热膨胀性Ni基超合金。 Si：1％以下; Mn：1％以下; Cr：5％以上但小于20％; Mo，W和Re中的至少一种，其中Mo + 1/2（W + Re）为5％以上但小于20％; W：10％以下; Al：0.1〜2.5％ Ti：0.10〜0.95％ Nb +½Ta：1.5％以下; B：0.001〜0.02％; Zr：0.001〜0.2％ Fe：4.0％以下; 余量为不可避免的杂质和Ni，其中Al，Ti，Nb和Ta的总量按原子％计为2.0〜6.5％。 本发明的低热膨胀性Ni基超合金的热膨胀系数几乎与12Cr铁素体钢的热膨胀系数相当，耐高温性优异，耐腐蚀性，耐氧化性优异，热加工性良好，焊接性优异。

公开(公告)号：US20060207696A1

公开(公告)日：2006-09-21

申请号：US11365511

申请日：2006-03-02

申请人： Noritaka Takahata ,  Michiharu Ogawa ,  Shigeki Ueta ,  Tetsuya Shimizu

发明人： Noritaka Takahata ,  Michiharu Ogawa ,  Shigeki Ueta ,  Tetsuya Shimizu

IPC分类号： C22F1/10 ,  C22C19/05

CPC分类号： C22C19/058

摘要： The present invention provides a nonmagnetic high-hardness alloy having a Ni-based alloy composition containing; by weight%, C of 0.1% or less: Si of 2.0% or less; Mn of 2.0% or less; P of 0.03% or less; S of 0.01% or less; Cr of 30 to 45%; Al of 1.5 to 5.0%; and a balance of unavoidable impurities and Ni, the nonmagnetic high-hardness alloy being subjected to cold or warm plastic working and then ageing treatment, and a method for producing the nonmagnetic high-hardness alloy.

摘要翻译： 本发明提供一种含有Ni基合金组成的非磁性高硬度合金， ，C：0.1％以下：Si：2.0％以下; Mn为2.0％以下; 0.03％以下; S为0.01％以下; 30〜45％的Cr Al为1.5〜5.0％; 和不可避免的杂质和Ni的平衡，非磁性高硬度合金进行冷或热塑性加工，然后进行时效处理，以及非磁性高硬度合金的制造方法。

公开(公告)号：US20050236079A1

公开(公告)日：2005-10-27

申请号：US11115159

申请日：2005-04-27

申请人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

发明人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

IPC分类号： C22C19/03 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10

CPC分类号： C22C19/056 ,  C22C19/03 ,  C22C19/057 ,  C22C19/058 ,  C22F1/10

摘要： The present invention provides a method for producing a low thermal expansion Ni-base superalloy, which includes: preparing an alloy including, by weight %, C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 5 to 20%, at least one of Mo, W and Re, which satisfy the relationship Mo+½(W+Re): 17 to 27%, Al: 0.1 to 2%, Ti: 0.1 to 2%, Nb and Ta, which satisfy the relationship Nb+Ta/2: 1.5% or less, Fe: 10% or less, Co: 5% or less, B: 0.001 to 0.02%, Zr: 0.001 to 0.2%, a reminder of Ni and inevitable components; subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C.; subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour; subjecting the alloy to a first aging treatment for precipitating γ′ phase under the conditions of at a temperature of 720 to 900° C. and for 1 to 50 hours; and subjecting the alloy to a second aging treatment for precipitating A2B phase under the conditions of at a temperature of 550 to 700° C. and for 5 to 100 hours.

摘要翻译： 本发明提供一种低热膨胀型Ni基超合金的制造方法，其特征在于，包括：以重量％计含有C：0.15％以下，Si：1％以下，Mn：1％以下的合金， Cr：5〜20％，满足Mo +½（W + Re）：17〜27％，Al：0.1〜2％，Ti：0.1〜2％的Mo，W和Re中的至少一种，Nb 和Ta，其满足Nb + Ta / 2：1.5％以下的关系，Fe：10％以下，Co：5％以下，B：0.001〜0.02％，Zr：0.001〜0.2％，提示Ni 和不可避免的组成部分; 在1000〜1200℃的温度下对合金进行固溶热处理; 使合金进行碳化物稳定化处理，在晶界上形成凝集碳化物，并在不低于850℃且小于1000℃的温度和1至50小时的条件下稳定碳化物，或 碳化物稳定化处理，用于通过从固溶热处理中的温度冷却至850℃，以每小时100℃或更低的冷却速度使晶界上的聚集碳化物稳定化; 在720〜900℃的温度和1〜50小时的条件下对合金进行第一时效处理以使γ相析出; 并在550-700℃的温度和5〜100小时的条件下对该合金进行第二时效处理以沉淀A 2 B相。

公开(公告)号：US09738953B2

公开(公告)日：2017-08-22

申请号：US14167370

申请日：2014-01-29

申请人： Mototsugu Osaki ,  Shigeki Ueta ,  Takuma Okajima ,  Ayumi Hori

发明人： Mototsugu Osaki ,  Shigeki Ueta ,  Takuma Okajima ,  Ayumi Hori

IPC分类号： C22C19/05

CPC分类号： C22C19/056 ,  C22C19/055

摘要： The present invention provides a hot-forgeable Ni-based superalloy excellent in high temperature strength, including, in terms of % by mass: C: more than 0.001% and less than 0.100%, Cr: 11.0% or more and less than 19.0%, Co: 0.5% or more and less than 22.0%, Fe: 0.5% or more and less than 10.0%, Si: less than 0.1%, Mo: more than 2.0% and less than 5.0%, W: more than 1.0% and less than 5.0%, Mo+½W: 2.5% or more and less than 5.5%, S: 0.010% or less, Nb: 0.3% or more and less than 2.0%, Al: more than 3.00% and less than 6.50%, and Ti: 0.20% or more and less than 2.49%, with the balance being Ni and unavoidable impurities, in which (Ti/Al)×10 is 0.2 or more and less than 4.0 in terms of atomic ratio, and in which Al+Ti+Nb is 8.5% or more and less than 13.0% in terms of atomic %.

公开(公告)号：US09365913B2

公开(公告)日：2016-06-14

申请号：US13463333

申请日：2012-05-03

申请人： Kaoru Imaizumi ,  Shigeki Ueta

发明人： Kaoru Imaizumi ,  Shigeki Ueta

IPC分类号： C22C1/04

CPC分类号： C22C1/0433 ,  C21D2251/04

摘要： The present invention relates to a high-hardness hardfacing alloy powder, containing: 0.5

摘要翻译： 本发明涉及一种高硬度表面硬化合金粉末，其含有：0.5质量％，3.0质量％，0.5质量％，1.6质量％，5.0质量％，10.0质量％，10质量％，30质量％，16.0质量％ 余量为Co和不可避免的杂质，其中Mo和Cr的总量满足40.0＆nlE; Mo + Cr＆nlE; 70.0质量％。 根据本发明的高硬度表面硬化合金粉末还可以含有选自以下的至少一种元素：Ca＆lt; NlE; 0.03质量％，P＆lt; EL; 0.03质量％，Ni＆NlE; 5.0质量％，Fe＆nlE; 5.0质量％。 根据本发明的高硬度硬化合金粉末可以用于各种内燃机，汽车发动机，蒸汽轮机，热交换器，加热炉等中使用的阀的面部的积层焊接。

公开(公告)号：US20140212321A1

公开(公告)日：2014-07-31

申请号：US14240187

申请日：2012-08-24

申请人： Mototsugu Osaki ,  Shigeki Ueta ,  Takashi Tsuyumu

发明人： Mototsugu Osaki ,  Shigeki Ueta ,  Takashi Tsuyumu

IPC分类号： C22C38/58 ,  C22C38/50 ,  C22C38/00 ,  C22C38/44 ,  C22C38/06 ,  C22C38/02 ,  C22C38/54 ,  C22C38/48

CPC分类号： C22C38/58 ,  C21D6/004 ,  C21D9/0068 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  F01L3/02

摘要： The object of the present invention is to provide a heat-resistant steel for exhaust valves, having relatively small Ni content, high mechanical characteristics (for example, tensile strength, fatigue strength, wear resistance and hardness) at high temperature, and excellent oxidation resistance. The present invention provides a heat-resistant steel for exhaust valves, which includes: 0.45≦C

摘要翻译： 本发明的目的是提供一种排气门用耐热钢，Ni含量相对较小，高温下的机械特性（例如拉伸强度，疲劳强度，耐磨性和硬度）高，耐氧化性优异 。 本发明提供了一种排气门用耐热钢，其特征在于，包括：0.45≤n.E≤0.06质量％，0.30

公开(公告)号：US07326307B2

公开(公告)日：2008-02-05

申请号：US10395236

申请日：2003-03-25

申请人： Shigeki Ueta ,  Shuji Hamano ,  Toshiharu Noda

发明人： Shigeki Ueta ,  Shuji Hamano ,  Toshiharu Noda

IPC分类号： C22C38/48

CPC分类号： C22C38/60 ,  C21D1/34 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50

摘要： Disclosed is a heat resistant cast steel having not only good heat resistance but also good thermal fatigue resistance, which is suitable as the material for engine parts, particularly, such as exhaust gas manifold and turbo-housing, which are repeatedly exposed to such a high temperature as 900° C. or higher. The heat resistant cast steel comprises, by weight percent, C: 0.2-1.0%, Ni: 8.0-45.0%, Cr: 15.0-30.0%, W: up to 10% and Nb: 0.5-3.0%, provided that [%C]-0.13[%Nb]: 0.05-0.95%, the balance being Fe and inevitable impurities, and the cast structure contains dispersed therein, by atomic percent, MC-type carbides: 0.5-3.0% and M23C6-type carbides: 0.5-10.0%. The matrix of the steel is an austenitic phase mainly composed of Fe—Ni—Cr and the steel has the mean coefficient of thermal expansion in the range from room temperature to 1050° C. up to 20.0×10−4 and a tensile strength in the temperature range up to 1050° C. 50 MPa or higher.

摘要翻译： 本发明公开了一种不仅具有良好的耐热性，而且具有良好的耐热疲劳性的耐热铸钢，其适合作为反复暴露于这样高的发动机部件，特别是排气歧管和涡轮壳体的材料 温度为900℃以上。 耐热铸钢以C：0.2-1.0％，Ni：8.0-45.0％，Cr：15.0-30.0％，W：至多10％和Nb：0.5-3.0％的重量百分比包含，条件是[％ C] -0.13 [％Nb]：0.05-0.95％，余量为Fe和不可避免的杂质，并且铸态结构含有分散在其中的原子百分比为MC-型碳化物：0.5-3.0％和M 23 / 6类型碳化物：0.5-10.0％。 钢的基质是主要由Fe-Ni-Cr组成的奥氏体相，并且钢的平均热膨胀系数在室温至1050℃至20.0×10 -4的范围内 >和在1050℃以上的温度范围内的拉伸强度为50MPa以上。

公开(公告)号：US09416436B2

公开(公告)日：2016-08-16

申请号：US13869275

申请日：2013-04-24

申请人： Hiroyuki Takabayashi ,  Shigeki Ueta

发明人： Hiroyuki Takabayashi ,  Shigeki Ueta

IPC分类号： C22C38/44 ,  C22C38/50 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  C21D9/00

CPC分类号： C22C38/50 ,  C21D6/004 ,  C21D9/0068 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44

摘要： The present invention aim at providing a steel for steam turbine blades which is excellent in terms of strength and toughness. The steel of the present invention has a composition which contains, in terms of % by mass, 0.02-0.10% of C, up to 0.25% of Si, 0.001-0.10% of Mn, up to 0.010% of P, up to 0.010% of S, 8.5-10.0% of Ni, 10.5-13.0% of Cr, 2.0-2.5% of Mo, 0.001-0.010% of N, 1.15-1.50% of Al, less than 0.10% of Cu, up to 0.20% of Ti, and the remainder being incidental impurities and Fe, and which satisfies 6.0≦Ni/Al≦8.0, 9.0≦Nieq≦11.0 and 17.0≦Creq≦19.0, in which Nieq=[Ni]+0.11[Mn]−0.0086([Mn]2)+0.44[Cu]+18.4[N]+24.5[C] Creq=[Cr]+1.21[Mo]+0.48[Si]+2.2[Ti]+2.48[A1].

摘要翻译： 本发明旨在提供一种在强度和韧性方面优异的汽轮机叶片用钢。 本发明的钢具有以质量％计含有0.02-0.10％的C，至多0.25％的Si，0.001-0.10％的Mn，至多0.010％的P，至多0.010的组成 的％S，8.5-10.0％的Ni，10.5-13.0％的Cr，2.0-2.5％的Mo，0.001-0.010的N，1.15-1.50％的Al，小于0.10％的Cu，至多0.20％ 的Ti，其余为杂质和Fe，满足6.0≤Ni/Al≤8.0,9.0≤Nieq≤11.0和17.0≤Creq≤19.0，其中Nieq = [Ni] +0.11 [Mn] -0.0086（ [Mn] 2）+0.44 [Cu] +18.4 [N] +24.5 [C] Creq = [Cr] +1.21 [Mo] +0.48 [Si] +2.2 [Ti] +2.48 [A1]。