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公开(公告)号：CA2663632C
公开(公告)日：2014-04-15
申请号：CA2663632
申请日：2007-09-12
Applicant: NAT INST FOR MATERIALS SCIENCE , IHI CORP
Inventor： SATO AKIHIRO , HARADA HIROSHI , KAWAGISHI KYOKO , KOBAYASHI TOSHIHARU , YOKOKAWA TADAHARU , KOIZUMI YUTAKA , AOKI YASUHIRO , ARAI MIKIYA , CHIKUGO KAZUYOSHI , MASAKI SHOJU
Abstract: A Ni-based single crystal superalloy according to the invention has, for example, a composition including: 5.0 to 7.0 wt% of Al, 4.0 to 10.0 wt% of Ta, 1.1 to 4.5 wt% of Mo, 4.0 to 10.0 wt% of W, 31 to 8.0 wt% of Re, 0.0 to 2.0 wt% of Hf, 2.5 to 8.5 wt% of Cr, 0.0 to 9.9 wt% of Co, 0.0 to 4.0 wt% of Nb, and 1.0 to 14.0 wt% of Ru in terms of weight ratio; and the remainder including Ni and incidental impurities. In addition, the contents of Cr, Hf and Al are preferably set so as to satisfy the equation OP>=108. According to the Ni-based single crystal superalloy of the invention, high creep strength can be maintained and the oxidation resistance can be improved.
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公开(公告)号：CA2810504A1
公开(公告)日：2012-05-18
申请号：CA2810504
申请日：2011-11-09
Applicant: HONDA MOTOR CO LTD , NAT INST FOR MATERIALS SCIENCE
Inventor： GU YUEFENG , YOKOKAWA TADAHARU , KOBAYASHI TOSHIHARU , OSADA TOSHIO , FUJIOKA JUNZO , HARADA HIROSHI , NAGAHAMA DAISUKE , KIKUCHI YUSUKE
Abstract: A nickel alloy with high-temperature oxidation resistance and excellent creep strength is provided. The nickel alloy comprises 11.5%-11.9% by mass Cr, 25%-29% by mass Co, 3.4%-3.7% by mass Mo, 1.9%-2.1% by mass W, 3.9%-4.4% by mass Ti, 2.9%-3.2% by mass Al, 0.02%-0.03% by mass C, 0.01%-0.03% by mass B, 0.04%-0.06% by mass Zr, 2.1%-2.2% by mass Ta, 0.3%-0.4% by mass Hf, 0.5%-0.8% by mass Nb, with the remainder comprising Ni and unavoidable impurities; and includes carbide and boride precipitated in the crystal grains and in the crystal grain boundaries.
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公开(公告)号：CA2387828A1
公开(公告)日：2002-11-30
申请号：CA2387828
申请日：2002-05-29
Inventor： HARADA HIROSHI , KOIZUMI YUTAKA , AOKI YASUHIRO , KOBAYASHI TOSHIHARU , KAKIUCHI RYOJI , ARAI MIKIYA , MASAKI SHOJU , YOKOKAWA TADAHARU , CHIKUGO KAZUYOSHI
IPC: C22C19/05
Abstract: The object of the present invention is to provide an Ni-based single crystal super alloy capable of improving strength by preventing precipitation of a TCP phase at high temperatures. This object is achieved by an Ni-based single crystal super alley having a composition consisting of 5.0-7.0 wt% Al, 4.0-8.0 wt% Ta, 2.9-4.5 wt% Mo, 4.0-8.0 wt% W, 3.0-6.0 wt% R e, 0.01-0.50 wt% Hf, 2.0-5.0 wt% Cr, 0.1-15.0 wt% Co and 1.0-4.0 wt% Ru in terms of its weight ratio, with the remainder consisting of Ni and unavoidable impurities.
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公开(公告)号：CA2479774C
公开(公告)日：2012-09-04
申请号：CA2479774
申请日：2003-03-27
Inventor： KOBAYASHI TOSHIHARU , KOIZUMI YUTAKA , YOKOKAWA TADAHARU , HARADA HIROSHI , AOKI YASUHIRO , MASAKI SHOUJU
Abstract: A Ni-base directionally solidified superalloy and a Ni-base single-crystal superalloy, which have superior creep strength at a high temperature, consists essentially of from 5.0 percent by weight to 7.0 percent by weight of Al, from 4.0 percent by weight to 16.0 percent by weight of Ta + Nb + Ti, from 1.0 percent by weight to 4.5 percent by weight of Mo, from 4.0 percent by weight to 8.0 percent by weight of W, from 3.0 percent by weight to 8.0 percent by weight of Re, 2.0 percent by weight or less of Hf, 10.0 percent by weight or less of Cr, 15.0 percent by weight or less of Co, from 1.0 percent by weight to 4.0 percent by weight of Ru, 0.2 percent by weight or less of C, 0.03 percent by weight or less of B, and Ni and inescapable impurities as a balance. The superalloys can be used for a turbine blade, a turbine vane and the like of a jet engine, an industrial gas turbine and the like.
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公开(公告)号：CA2663632A1
公开(公告)日：2008-03-20
申请号：CA2663632
申请日：2007-09-12
Applicant: IHI CORP , NAT INST FOR MATERIALS SCIENCE
Inventor： KAWAGISHI KYOKO , KOIZUMI YUTAKA , YOKOKAWA TADAHARU , MASAKI SHOJU , CHIKUGO KAZUYOSHI , KOBAYASHI TOSHIHARU , SATO AKIHIRO , AOKI YASUHIRO , HARADA HIROSHI , ARAI MIKIYA
Abstract: Disclosed is an Ni-base single crystal superalloy having a composition co mposed of, in percentage by weight, not less than 5.0% by weight and not mor e than 7.0% by weight of Al, not less than 4.0% by weight and not more than 10.0% by weight of Ta, not less than 1.1% by weight and not more than 4.5% b y weight of Mo, not less than 4.0% by weight and not more than 10.0% by weig ht of W, not less than 3.1% by weight and not more than 8.0% by weight of Re , not less than 0.0% by weight and not more than 2.0% by weight of Hf, not l ess than 2.5% by weight and not more than 8.5% by weight of Cr, not less tha n 0.0% by weight and not more than 9.9% by weight of Co, not less than 0.0% by weight and not more than 4.0% by weight of Nb, not less than 1.0% by weig ht and not more than 14.0% by weight of Ru, and the balance of Ni and unavoi dable impurities. It is preferable that the composition ratio among Cr, Hf a nd Al is set so that the OP value is not less than 108. This Ni-base single crystal superalloy is improved in oxidation resistance, while maintaining hi gh creep strength.
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Patent Agency Ranking
公开(公告)号：DE60203562D1
公开(公告)日：2005-05-12
申请号：DE60203562
申请日：2002-05-29
Inventor： KOIZUMI YUTAKA , KOBAYASHI TOSHIHARU , YOKOKAWA TADAHARU , HARADA HIROSHI , AOKI YASUHIRO , ARAI MIKIYA , MASAKI SHOJU , KAKIUCHI RYOJI , CHIKUGO KAZUYOSHI
Abstract: The object of the present invention is to provide an Ni-based single crystal super alloy capable of improving strength by preventing precipitation of a TCP phase at high temperatures. This object is achieved by an Ni-based single crystal super alloy having a composition consisting of 5.0-7.0 wi% Al, 4.0-8.0 wt% Ta, 2.9-4.5 wt% Mo, 4.0-8.0 wt% W, 3.0-6.0 wt% Re, 0.01-0.50 wt% Hf, 2.0-5.0 wt% Cr, 0.1-15.0 wt% Co and 1.0-4.0 wt% Ru in terms of its weight ratio, with the remainder consisting of Ni and unavoidable impurities.
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公开(公告)号：AU2003289214A1
公开(公告)日：2004-06-30
申请号：AU2003289214
申请日：2003-12-05
Applicant: NAT INST FOR MATERIALS SCIENCE
Inventor： KOBAYASHI TOSHIHARU , KOIZUMI YUTAKA , YOKOKAWA TADAHARU , HARADA HIROSHI , AOKI YASUHIRO , ARAI MIKIYA , MASAKI SHOUJU
IPC: C22C19/05
Abstract: The object of the present invention is to provide an Ni-based single crystal super alloy capable of improving strength by preventing precipitation of a TCP phase at high temperatures. This object is achieved by an Ni-based single crystal super alloy having a composition comprising 5.0-7.0 wt% of Al, 4.0-10.0 wt% of Ta, 1.1-4.5 wt% of Mo, 4.0-10.0 wt% of W, 3.1-8.0 wt% of Re, 0-0.50 wt% of Hf, 2.0-5.0 wt% of Cr, 0-9.9 wt% of Co and 4.1-14.0 wt% of Ru in terms of its weight ratio, with the remainder consisting of Ni and unavoidable impurities.
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公开(公告)号：DE112013003971T5
公开(公告)日：2015-06-25
申请号：DE112013003971
申请日：2013-07-30
Applicant: MITSUBISHI HEAVY IND LTD , NAT INST FOR MATERIALS SCIENCE
Inventor： KAWAGISHI KYOKO , HARADA HIROSHI , YOKOKAWA TADAHARU , KOIZUMI YUTAKA , SAKAMOTO MASAO , YUYAMA MICHINARI , TANEIKI MASAKI , OKADA IKUO , SHIMOHATA SACHIO , OGUMA HIDETAKA , OKIMOTO RYOTA , TSUKAGOSHI KEIZO , UEMURA YOSHITAKA , MASADA JUNICHIRO , TORII SHUNSUKE , KOBAYASHI TOSHIHARU
Abstract: Eine nickelbasierte einkristalline Superlegierung wird offenbart, die Folgendes aufweist: 6 oder mehr Massen-% und 12 oder weniger Massen-% Cr, 0,4 oder mehr Massen-% und 3,0 oder weniger Massen-% Mo, 6 oder mehr Massen-% und 10 oder weniger Massen-% W, 4,0 oder mehr Massen-% und 6,5 oder weniger Massen-% Al, 0 oder mehr Massen-% und 1 oder weniger Massen-% Nb, 8 oder mehr Massen-% und 12 oder weniger Massen-% Ta, 0 oder mehr Massen-% und 0,15 oder weniger Massen-% Hf, 0,01 oder mehr Massen-% und 0,2 oder weniger Massen-% Si, und 0 oder mehr Massen-% und 0,04 oder weniger Massen-% Zr, und optional wenigstens ein Element, welches aus B, C; Y, La, Ce und V ausgewählt ist, wobei der Rest Ni und unvermeidbare Verunreinigungen ist.
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公开(公告)号：CA2728167A1
公开(公告)日：2009-12-30
申请号：CA2728167
申请日：2009-06-26
Applicant: NAT INST FOR MATERIALS SCIENCE
Inventor： HARADA HIROSHI , KOIZUMI YUTAKA , KOBAYASHI TOSHIHARU , YOKOKAWA TADAHARU , SAKAMOTO MASAO , KAWAGISHI KYOKO , KITAJIMA TOMONORI , YEH AN-CHOU
IPC: C22C19/05
Abstract: Disclosed is a Ni-based single crystal superalloy having a composition consisting of, in mass percent, 5.0-7.0% of Al, 4.0-8.0% of Ta, 0-2.0% of Mo, 3.0-8.0% of W, 3.0-8.0% of Re, 0-0.50% of Hf, 3.0-6.0% of Cr, 0-9.9% of Co, 1.0-14.0% of Ru, 0.1-4.0% of Nb and the balance of Ni and unavoidable impurities. The Ni-based single crystal superalloy suppresses the precipitation of the TCP phase at high temperatures, thereby improving strength at high temperatures, and also has oxidation resistance at high temperatures.
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公开(公告)号：DE69934158T2
公开(公告)日：2007-09-27
申请号：DE69934158
申请日：1999-03-02
Applicant: NAT INST FOR MATERIALS SCIENCE , KAWASAKI HEAVY IND LTD
Inventor： KOBAYASHI TOSHIHARU , KOIZUMI YUTAKA , HARADA HIROSHI , YAMAGATA TOSHIHIRO , TAMURA AKIRA , NITTA SEIYA
Abstract: A Ni-base directionally solidified alloy casting is produced by casting a Ni-base directionally solidified alloy having a composition of 10 to 14 wt.% Co, 2 to 3 wt.% Cr, 1.5 to 2.5 wt.% Mo, 5 to 6.5 wt.% W, 5.7 to 6.5 wt.% Al, 5.5 to 6.5 wt.% Ta, 4.5 to 5.0 wt.% Re, 0.01 to 1.5 wt.% Hf, 0.01 to 0.30 wt.% C, 0.01 to 0.03 wt.% B, and the balance of Ni and inevitable impurities. The Ni-base directionally solidified alloy casting is subjected to a solid solution treatment process at a temperature in the range of 1250 to 1300 DEG C. Then the Ni-base directionally solidified alloy casting is subjected to a two-stage aging process for aging the Ni-base directionally solidified alloy casting at a temperature in the range of 750 to 1200 DEG C.
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