公开(公告)号：US06921442B2

公开(公告)日：2005-07-26

申请号：US10399916

申请日：2001-10-24

申请人： Manabu Noguchi ,  Kei Matsuoka ,  Hiroshi Yakuwa ,  Akira Uchino ,  Hideyuki Sakamoto ,  Michio Okabe ,  Yoshiyuki Sawada ,  Shigeki Ueta

发明人： Manabu Noguchi ,  Kei Matsuoka ,  Hiroshi Yakuwa ,  Akira Uchino ,  Hideyuki Sakamoto ,  Michio Okabe ,  Yoshiyuki Sawada ,  Shigeki Ueta

IPC分类号： C22C19/03 ,  C22C19/05 ,  C22C30/00

CPC分类号： C22C19/053 ,  C22C19/055 ,  C22C19/058

摘要： The present invention relates to a Ni base alloy having sufficient strength at high temperatures and high corrosion resistance at high temperatures in a high-temperature composite corrosive environment in which chlorination or sulfidation occurs simultaneously with high-temperature oxidation, without excessive cooling or surface protection. According to the present invention, a Ni base alloy having high-temperature strength and corrosion resistance includes Cr in a range of from 25 to 40 weight %, Al in a range of from 1.5 to 2.5 weight %, C in a range of from 0.1 to 0.5 weight %, W of 15 weight % or less, Mn of 2.0 weight % or less, Si in a range of from 0.3 to 6 weight %, Fe of 5% or less, and Ni of rest except inevitable impurities. When strength at high temperatures is allowed to be small, W is in a range of from 0 to 8%, and Si is in a range of from 0.3 to 1% or from 1 to 6%. In order to enhance strength at high temperatures, W is in a range of from 8 to 15, and Si is in a range of from 0.3 to 1% or from 1 to 6%.

摘要翻译： 本发明涉及在高温复合腐蚀环境中高温下具有足够的强度和高耐蚀性的Ni基合金，其中氯化或硫化与高温氧化同时发生，而没有过多的冷却或表面保护。 根据本发明，具有高温强度和耐腐蚀性的Ni基合金包括Cr在25至40重量％的范围内，Al在1.5至2.5重量％的范围内，C在0.1的范围内 至0.5重量％，W为15重量％以下，Mn为2.0重量％以下，Si为0.3〜6重量％，Fe为5％以下，除了不可避免的杂质以外的Ni。 当高温下的强度变小时，W在0〜8％的范围内，Si在0.3〜1％的范围或1〜6％的范围。 为了提高高温下的强度，W为8〜15，Si为0.3〜1％，1〜6％的范围。

公开(公告)号：US06918972B2

公开(公告)日：2005-07-19

申请号：US10371363

申请日：2003-02-20

申请人： Shigeki Ueta ,  Toshiharu Noda

发明人： Shigeki Ueta ,  Toshiharu Noda

IPC分类号： F16F1/02 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10

CPC分类号： C22C19/055 ,  C22C19/056 ,  C22F1/10

摘要： A Ni-base alloy which has excellent resistance to permanent set at high temperature and which can be produced at low cost, a heat-resistant spring made of the Ni-base alloy, and a process for producing the spring. The Ni-base alloy of the present invention consists of 0.01 to 0.15 mass % of C, 2.0 mass % or less of Si, 2.5 mass % or less of Mn, 12 to 25 mass % of Cr, 5.0 mass % or less of Mo and/or 5.0 mass % or less of W on condition that Mo+W/2 does not exceed 5.0 mass % or less, 1.5 to 3.5 mass % of Ti, 0.7 to 2.5 mass % of Al, 20 mass % or less of Fe, and the balance of Ni and unavoidable impurities. The ratio of Ti/Al in terms of atomic percentage ranges from 0.6 to 1.5 and the total content of Ti and Al ranges from 4.0 to 8.5 atomic %.

摘要翻译： 具有优异的耐高温永久变形并且可以低成本制造的Ni基合金，由Ni基合金制成的耐热弹簧和制造弹簧的方法。 本发明的Ni基合金由C：0.01〜0.15质量％，Si：2.0质量％以下，Mn：2.5质量％以下，Cr：12〜25质量％，Mo：5.0质量％以下 和/或5.0质量％以下的W，条件是Mo + W / 2不超过5.0质量％以下，Ti为1.5〜3.5质量％，Al为0.7〜2.5质量％，Fe为20质量％以下 ，余量为Ni和不可避免的杂质。 Ti / Al的原子百分比为0.6〜1.5，Ti和Al的总量为4.0〜8.5原子％。

公开(公告)号：US08491838B2

公开(公告)日：2013-07-23

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：US20110236247A1

公开(公告)日：2011-09-29

申请号：US13070629

申请日：2011-03-24

申请人： Mototsugu Osaki ,  Shigeki Ueta ,  Takashi Tsuyumu

发明人： Mototsugu Osaki ,  Shigeki Ueta ,  Takashi Tsuyumu

IPC分类号： C22C38/58 ,  C22C38/48 ,  C22C38/44 ,  C22C38/52 ,  C22C38/54

CPC分类号： C22C38/02 ,  C21D9/0068 ,  C22C38/001 ,  C22C38/44 ,  C22C38/48 ,  C22C38/58 ,  F01L3/02 ,  F01L2103/00 ,  F01L2820/00

摘要： The present invention provides a heat resistant steel for an exhaust valve, containing: more than 0.50% by mass but less than 0.80% by mass of C, more than 0.30% by mass but less than 0.60% by mass of N, 17.0% by mass or more but less than 25.0% by mass of Cr, 4.0% by mass or more but less than 12.0% by mass of Ni, 7.0% by mass or more but less than 14.0% by mass of Mn, 2.0% by mass or more but less than 6.0% by mass of Mo, more than 0.5% by mass but less than 1.5% by mass of Si, and 0.025% by mass or more but less than 1.0% by mass of Nb, with the balance consisting of Fe and unavoidable impurities, in which a content of P contained in the unavoidable impurities is regulated to less than 0.03% by mass, a total content of C and N is from 0.85% by mass to 1.3% by mass, and a ratio of the content of Nb to the content of C is 0.05 or more but less than 1.8.

摘要翻译： 本发明提供一种用于排气阀的耐热钢，其含有：大于0.50质量％且小于0.80质量％的C，大于0.30质量％且小于0.60质量％的N，17.0重量％ 以上且小于25.0质量％的Cr，4.0质量％以上且小于12.0质量％的Ni，7.0质量％以上且小于14.0质量％的Mn，2.0质量％以下，或 更多但小于6.0质量％的Mo，大于0.5质量％但小于1.5质量％的Si，以及0.025质量％以上且小于1.0质量％的Nb，余量由Fe 和不可避免的杂质，其中将不可避免的杂质中含有的P的含量调节至小于0.03质量％，C和N的总含量为0.85质量％至1.3质量％，并且含量 的Nb含量为0.05以上且小于1.8。

公开(公告)号：US20070215252A1

公开(公告)日：2007-09-20

申请号：US11709863

申请日：2007-02-23

申请人： Hiroyuki Takabayashi ,  Shigeki Ueta ,  Tetsuya Shimizu ,  Toshiharu Noda

发明人： Hiroyuki Takabayashi ,  Shigeki Ueta ,  Tetsuya Shimizu ,  Toshiharu Noda

IPC分类号： C22C38/26 ,  C22C38/24

CPC分类号： B22D18/06 ,  C22C38/24 ,  C22C38/26 ,  F01N13/16 ,  F01N2530/04

摘要： The present invention provides: a ferritic stainless steel cast iron including: Fe as a main component; C: 0.20 to 0.40 mass %; Si: 1.00 to 3.00 mass %; Mn: 0.30 to 3.00 mass %; Cr: 12.0 to 30.0 mass %; and one of Nb and V, or both of Nb and V in total: 1.0 to 5.0 mass %, the ferritic stainless steel cast iron satisfying the following formula (1): 1400≦1562.3−{133WC+14WSi+5WMn+10(WNb+WV)}≦1480  (1) wherein, WC (mass %), WSi (mass %), WMn (mass %), WCr (mass %), WNb (mass %), WV (mass %) and WCu (mass %) are contents of C, Si, Mn, Cr, Nb, V and Cu, respectively; a process for producing a cast part from the ferritic cast steel; and the cast part.

摘要翻译： 本发明提供：铁素体不锈钢铸铁，其以Fe为主要成分; C：0.20〜0.40质量％ Si：1.00〜3.00质量％ Mn：0.30〜3.00质量％ Cr：12.0〜30.0质量％ Nb和V中的一种，或Nb和V两者中的一种：1.0〜5.0质量％，满足下式（1）的铁素体系不锈钢铸铁：<？在线式说明=“在线式 “end =”lead“？> 1400 <= 1562.3- {133WC + 14WSi + 5WMn + 10（WNb + WV）} <= 1480（1）<？in-line-formula description =”In-line Formulas“end = 其中，WC（质量％），WSi（质量％），WMn（质量％），WCr（质量％），WNb（质量％），WV（质量％），WCu（质量％ 分别为C，Si，Mn，Cr，Nb，V和Cu; 从铁素体铸钢制造铸造件的方法; 和铸件。

公开(公告)号：US06752883B2

公开(公告)日：2004-06-22

申请号：US10158167

申请日：2002-05-31

申请人： Kiyohito Ishida ,  Katsunari Oikawa ,  Shigeki Ueta ,  Toshiharu Noda ,  Takashi Ebata

发明人： Kiyohito Ishida ,  Katsunari Oikawa ,  Shigeki Ueta ,  Toshiharu Noda ,  Takashi Ebata

IPC分类号： C22C1905

CPC分类号： C22C19/056 ,  C22C19/053 ,  C22C19/055 ,  C22C19/058

摘要： A free-cutting Ni-base heat-resistant alloy excellent in the high-temperature strength and corrosion resistance was proposed. The alloy contains Ni as a major component, 0.01 to 0.3 wt % of C and 14 to 35 wt % of Cr, and further contains at least one element selected from Ti, Zr and Hf in a total amount of 0.1 to 6 wt %, and S in an amount of 0.015 to 0.5 wt %. The alloy has dispersed in the matrix thereof a machinability improving compound phase, where such phase contains any one of Ti, Zr and Hf as a major constituent of the metal elements, essentially contains C and either S or Se as a binding component for such metal elements. The alloy also satisfies the relations of WTi+0.53WZr+0.27WHf>2WC+0.75WS and WC>0.37WS, where WTi represents Ti content (wt %), WZr represents Zr content (wt %), WHf represents Hf content (wt %), WC represents C content (wt %) and WS represents S content (wt %). This successfully suppresses the amount of free S residing in the alloy, which results in an improved machinability while preventing the hot workability from being degraded.

摘要翻译： 提出了具有优异耐高温和耐腐蚀性的易切削Ni基耐热合金。 该合金含有Ni作为主要成分，0.01〜0.3重量％的C和14〜35重量％的Cr，还含有选自Ti，Zr和Hf中的至少一种元素，总量为0.1〜6重量％ 和S为0.015〜0.5重量％。 该合金在其基体中分散有可机械加工的化合物相，其中这种相含有Ti，Zr和Hf中的任何一种作为金属元素的主要成分，基本上含有C和S或Se作为这种金属的结合成分 元素。 该合金还满足WTi + 0.53WZr + 0.27WHf> 2WC + 0.75WS和WC> 0.37WS的关系，其中WTi表示Ti含量（wt％），WZr表示Zr含量（wt％），WHf表示Hf含量（wt ％），WC表示C含量（wt％），WS表示S含量（wt％）。 这成功地抑制了存在于合金中的游离S的量，这导致改善的机械加工性，同时防止热加工性降低。