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1. 发明专利

JPH0657359A NI-BASE HEAT RESISTANT ALLOY 失效
公开(公告)号：JPH0657359A
公开(公告)日：1994-03-01
申请号：JP18753092
申请日：1992-06-22
申请人： MITSUBISHI MATERIALS CORP , MITSUBISHI HEAVY IND LTD
发明人： KAWAI HISATAKA , OKADA IKUO , TSUJI ICHIRO , TAKAHASHI KOJI , SAHIRA TATEAKI , MIHASHI AKIRA
IPC分类号： C22C19/05
摘要： PURPOSE:To provide an Ni-base heat resistant alloy usable as the material for high temp. parts. CONSTITUTION:This Ni-base heat resistant alloy excellent in high temp. strength, oxidation resistance and corrosion resistance is a one having a compsn. contg., by weight, 13.1 to 15.0% Cr, 8.5 to 10.5% Co, 1.0 to 3.5% Mo, 3.5 to 4.5% W, 3.0 to 5.5% Ta, 3.5 to 4.5% Al, 2.2 to 3.2% Ti, 0.06 to 0.12% C, 0.025% or less B, 0.010 to 0.050% Zr and/or 1 to 100ppm Mg and/or Ca and furthermore contg., at need, 1.5% or less Hf and/or one or more kinds among 0.5% or less Pt, 0.5% or less Rh and 0.5% or less Re, and the balance Ni with inevitable impurities.

2. 发明专利

JPH0665601A NI-BASE ALLOY POWDER 失效
公开(公告)号：JPH0665601A
公开(公告)日：1994-03-08
申请号：JP24411992
申请日：1992-08-20
申请人： MITSUBISHI MATERIALS CORP , MITSUBISHI HEAVY IND LTD
发明人： KAWAI HISATAKA , OKADA IKUO , TSUJI ICHIRO , TAKAHASHI KOJI , TORIGOE TAIJI , WADA MASAHIRO , SAHIRA TATEAKI , MIHASHI AKIRA
IPC分类号： B22F1/00 , C22C19/05
摘要： PURPOSE:To provide the Ni-base alloy powder from which excellent high-temp. heat resistant parts can be produced by a powder metallurgical method by slightly increasing the content of Cr, adding W, Mo, Al, etc., with favorable balance to the powder and adding Mg and Ca in a specific ratio thereto. CONSTITUTION:This Ni-base alloy powder contains, by wt %, 13.1-15.0 Cr, 8.5-10.5 Ca, 1.0 3.5 No, 3.5-4.5 W, 3.0-5.5 Ta, 3.5-4.5 Al, 2.2-3.2 Ti, 0.01-0.09 C, 0.005-0.025 B, 0.01-0.10 Zr and 1-100ppm Mg and/on Ca and the balance Ni. Further, 0.5-1.5, by wt %, Hf and/or

3. 发明专利

JPH10204562A LARGE-SIZE CASTING MADE OF COLUMNAR CRYSTAL NI-BASED HEAT RESISTANT ALLOY, EXCELLENT IN HIGH TEMPERATURE INTERGRANULAR CORROSION RESISTANCE 失效
公开(公告)号：JPH10204562A
公开(公告)日：1998-08-04
申请号：JP1034697
申请日：1997-01-23
申请人： MITSUBISHI MATERIALS CORP , MITSUBISHI HEAVY IND LTD
发明人： MITSUHASHI AKIRA , WAKITA SABUROU , MASUMI MICHI , KAWAI HISATAKA , OKADA IKUO , TAKAHASHI KOUJI
IPC分类号： C22C19/05 , F01D5/28 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a large-size casting made of columnar crystal Ni-based heat resistant alloy for turbine blade, usable as turbine blade for gas turbine. SOLUTION: This casting has a composition consisting of 12.0-14.3% Cr, 8.5-11.0% Co, 1.0-3.5% Mo, 3.5-6.2% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.0-3.2%, Ti, 0.04-0.12% C, 0.005-0.05% B, 0.001-5ppm Zr, and the balance Ni with inevitable impurities and further containing, if necessary, one or >=2 kinds among the following (a) and (b): (a) 0.5-100ppm of Mg and/or Ca; (b) one or >=2 kinds among 0.02-0.5% Pt, 0.02-0.5% Rh, and 0.02-0.5% Re.

4. 发明专利

JPH1046277A COLUMNAR NI BASE HEAT RESISTANT ALLOY CASTING AND TURBINE BLADE MADE OF THE SAME 失效
公开(公告)号：JPH1046277A
公开(公告)日：1998-02-17
申请号：JP1034597
申请日：1997-01-23
申请人： MITSUBISHI MATERIALS CORP , MITSUBISHI HEAVY IND LTD
发明人： MIHASHI AKIRA , WAKITA SABURO , KAWAI HISATAKA , TAKAHASHI KOJI , OKADA IKUO
IPC分类号： C22C19/05
摘要： PROBLEM TO BE SOLVED: To produce a columnar Ni base heat resistant alloy casting usable as the turbine blade of a gas turbine. SOLUTION: This columnar Ni base heat resistant alloy casting has a compsn. contg., by weight, 10 to 14% Cr, 6 to 13% Co, 0.5 to 4% Mo, 1 to 6.2% W, 3 to 8% Ta, 2.5 to 6% Al, 0.5 to 4% Ti, 0.3 to 1.8% Hf, 0.03 to 0.20% C, 0.005 to 0.03% B, 0.001 to 0.03% Zr, and the balance Ni with inevitable impurities and has a structure in which carbides 4 are dispersed into the spaces among the dendrite structure in the matrix, on the grain boundaries 1 and in the dendrite structure 3. The content (atomic %) of Hf contained in the carbides 4 dispersed in the dendrite structure in the matrix is regulated to 3 to 20 times the content (atomic %) of Hf contained in the carbides dispersed among the spaces of the dendrite structure and on the grain boundaries.

5. 发明专利

JPH10273747A NI-BASE HEAT RESISTANT ALLOY CAPABLE OF PROVIDING SOUND CASTING SURFACE AND INTERNAL STRUCTURE OF CASTING 失效
公开(公告)号：JPH10273747A
公开(公告)日：1998-10-13
申请号：JP9652697
申请日：1997-03-31
申请人： MITSUBISHI MATERIALS CORP , MITSUBISHI HEAVY IND LTD
发明人： MITSUHASHI AKIRA , MISUMI MICHI , WAKITA SABUROU , KAWAI HISATAKA , TAKAHASHI KOUJI , OKADA IKUO
IPC分类号： C22C19/05
摘要： PROBLEM TO BE SOLVED: To provide an Ni-base heat resistant alloy excellent in durability, suitable for use in a large-size turbine blade, and capable of giving sound casting surface and internal structure of casting. SOLUTION: This Ni-base heat resistant alloy has a composition consisting of 12.0-14.3% Cr, 8.5-11.0% Co, 1.0-3.5% Mo, 3.5-6.2% W, 3.0-5.5% Ta, 3.5 4.5% Al, 2.0-3.2% Ti, 0.04-0.12% C, 0.005-0.05% B, further 0.5-100 ppm Mg and/or Ca, further one or >=2 kinds among 0.02-0.5% Pt, 0.02-0.5% Rh, and 0.02-0.5% Re, and the balance Ni with inevitable impurities.

6. 发明专利

JPH10204594A MANUFACTURE OF LARGE-SIZED CASTING OR TURBINE BLADE, MADE OF COLUMNAR-CRYSTAL NI-BASED HEAT RESISTANT ALLOY 失效
公开(公告)号：JPH10204594A
公开(公告)日：1998-08-04
申请号：JP1034797
申请日：1997-01-23
申请人： MITSUBISHI MATERIALS CORP , MITSUBISHI HEAVY IND LTD
发明人： MITSUHASHI AKIRA , MISUMI MICHI , WAKITA SABUROU , KAWAI HISATAKA , TAKAHASHI KOUJI , OKADA IKUO
IPC分类号： F01D5/28 , C22C19/05 , C22F1/00 , C22F1/10 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacture of a large-sized casting or turbine blade, made of columnar-crystal Ni-based heat resistant alloy, having greater strength than heretofore and improved in service life. SOLUTION: A large-sized casting or turbine blade, made of a columnar- crystal Ni-based heat resistant alloy having a composition consisting of 12.0-14.3% Cr, 8.5-11.0% Co, 1.0-3.5% Mo, 3.5-6.2% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.0-3.2% Ti, 0.04-0.12% C, 0.005-0.05% B, and the balance Ni with inevitable impurities, is subjected, if necessary, to hot isostatic pressing(HIP), then to solution heat treatment at 1,200-1,265 deg.C, and further to two-stage aging heat treatment consisting of holding at 950-1,080 deg.C for 2-10hr and holding at 750-880 deg.C for 16-24hr.

7. 发明专利

JP2003013161A Ni-BASED AUSTENITIC SUPERALLOY WITH LOW THERMAL EXPANSION AND MANUFACTURING METHOD THEREFOR 审中-公开
标题翻译：具有低热扩张性的镍基奥氏体超级合金及其制造方法
公开(公告)号：JP2003013161A
公开(公告)日：2003-01-15
申请号：JP2001195741
申请日：2001-06-28
申请人： Daido Steel Co Ltd , Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社 , 大同特殊鋼株式会社
发明人： YAMAMOTO RYUICHI , KADOYA YOSHIKUNI , UMAGOE RYUTARO , NODA TOSHIHARU , ISOBE SUSUMU , OKABE MICHIO , KAWAI HISATAKA
IPC分类号： F16J12/00 , C22C19/05
摘要： PROBLEM TO BE SOLVED: To provide a Ni-based austenitic superalloy with a low thermal expansion, having a coefficient of thermal expansion equal to that of a ferrite-based 12Cr steel, and high-temperature strength and corrosion/oxidation resistance equal to that of an austenite-based heat resistant alloy.
SOLUTION: This super alloy includes carbon 0.15 mass% or less, silicon 1 mass% or less, manganese 1 mass% or less, chromium 5-20 mass%, molybdenum 17-26 mass%, aluminum 0.1-2.0 mass%, titanium 0.1-2.0 mass%, iron 10 mass% or less, boron 0.02 mass% or less, zirconium 0.2 mass% or less, tungsten, rhenium, and the balance substantially nickel, while the sum of aluminum and titanium content is 1-5.5 atom.%, satisfying the expression: 17≤Mo+(W+ Re)/2≤27, where Mo indicates a molybdenum content by mass%, W indicates a tungsten content by mass%, and Re indicates a rhenium content by mass%. The super alloy, further has a structure, in which a γ'-phase consisting of intermetallic compounds, and a A
2 B-phase consisting of intermetallic compounds, form composite precipitates.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供具有与铁素体系12Cr钢的热膨胀系数相当的热膨胀系数的具有低热膨胀系数的Ni基奥氏体超耐热合金，以及高温强度和耐腐蚀/抗氧化性等于奥氏体型耐热合金。解决方案：该超合金包括0.15质量％以下的碳，1质量％以下的硅，1质量％以下的锰，5〜20质量％的铬，17〜26质量％的铬，0.1〜2.0质量％的铝，0.1质量％ -2.0质量％，铁10质量％以下，硼0.02质量％以下，0.2质量％以下的钨，铼，余量基本上为镍，铝和钛的总和为1-5.5原子。％，满足以下表达式：17 <= Mo +（W + Re）/ 2 <= 27，其中Mo表示以质量％计含有的钼含量，W表示钨质量％，并且Re表示铼含量以质量％计。超合金还具有由金属间化合物构成的γ'相和由金属间化合物构成的A2B相形成复合析出物的结构。

8. 发明专利

JPH10197515A ESTIMATING METHOD OF WORKING TEMPERATURE OF COBALT GROUP HEAT RESISTANT ALLOY 失效
公开(公告)号：JPH10197515A
公开(公告)日：1998-07-31
申请号：JP1734497
申请日：1997-01-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMADA MASAHIRO , SHIMIZU ETSURO , OKADA IKUO , MORIYA KEIICHI , KAWAI HISATAKA
IPC分类号： G01K1/02 , C22C19/07 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To estimate a working temperature of Co group heat resistant alloys with high accuracy by using a correlation curve related to a Larson-Miller parameter(LMP) value. SOLUTION: Heating materials of plural Co group heat resistant allays ECY 768 are heated at about 750 to 1000 deg.C for about 5000 hours at the longest in the atmosphere, and secondary carbide is observed on the respective heating materials by a scanning electron microscope, and a change in the average area is quantitatively determined by an image processor. The average area of this secondary carbide shows an excellent correlation with an LMP value being a function of a temperature and time, and the LMP value corresponding to the average area of the secondary carbide is read from this correlation curve, and a metal temperature can be estimated from it and known operation time. Here, the LMP value can be expressed by (273+T)×(C+log t) by using a heating temperature T deg.C, heating working time (t) and a time constant C. A working temperature of the heat resistant alloys ECY 768 can be accurately estimated by this method.

9. 发明专利

JPH08127833A NICKEL-BASE HEAT RESISTANT ALLOY EXCELLENT IN WELDABILITY 失效
公开(公告)号：JPH08127833A
公开(公告)日：1996-05-21
申请号：JP26711194
申请日：1994-10-31
申请人： MITSUBISHI STEEL MFG , MITSUBISHI HEAVY IND LTD
发明人： TAMURA ITARU , TOKORO KAZUNORI , KAWABATA TAKASHI , KOKUBU TAKEMI , MOCHIZUKI TOSHIO , SAKASHITA SHUICHI , KAWAI HISATAKA , OKADA IKUO , TSUJI ICHIRO , TAKAHASHI KOJI , TORIGOE TAIJI
IPC分类号： C22C19/03 , C22C19/05
摘要： PURPOSE: To produce an Ni-base heat resistant alloy used as the forming mate rial for the turbine stationary blade of a gas turbine and the other high temp. parts. CONSTITUTION: In the case the compsn. of this alloy is constituted of 0.05 to 0.25% C, 18 to 25% Cr, 15 to 25% Co,

10. 发明专利

JPH0211292A WELDING MATERIAL FOR WELD-REPAIRING OF CO BASE PRECISION CASTING PARTS 失效
公开(公告)号：JPH0211292A
公开(公告)日：1990-01-16
申请号：JP16216188
申请日：1988-06-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： TSUJI ICHIRO , MAEKAWA ATSUSHI , KAWAI HISATAKA
IPC分类号： B23K35/30
摘要： PURPOSE:To use casting parts after repairing without scrapping by weld- repairing casting defect in the Co base precision casting parts by using a weld material limiting component composition. CONSTITUTION:The weld-material for weld-repairing the casing defect in the Co base precision casting parts composing of 22-30wt.% Cr, 8-15% Ni, 5-10% W, 2-5% Ta, 0.50-0.70% C,

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