公开(公告)号：EP2062990A4

公开(公告)日：2014-12-17

申请号：EP07807173

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

IPC: C22C19/05 ,  C22F1/10

CPC classification number: C22C19/057 ,  C22C19/00 ,  C22C19/007 ,  C22C19/03 ,  C22F1/10

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

IPC: C22C19/05 ,  C22F1/10

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.

公开(公告)号：CA2387828A1

公开(公告)日：2002-11-30

申请号：CA2387828

申请日：2002-05-29

Applicant: NAT INST FOR MATERIALS SCIENCE ,  ISHIKAWAJIMA HARIMA HEAVY IND

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.

公开(公告)号：CA2387828C

公开(公告)日：2009-09-15

申请号：CA2387828

申请日：2002-05-29

Applicant: NAT INST FOR MATERIALS SCIENCE ,  ISHIKAWAJIMA HARIMA HEAVY IND

Inventor： CHIKUGO KAZUYOSHI ,  AOKI YASUHIRO ,  HARADA HIROSHI ,  KAKIUCHI RYOJI ,  KOIZUMI YUTAKA ,  MASAKI SHOJU ,  YOKOKAWA TADAHARU ,  KOBAYASHI TOSHIHARU ,  ARAI MIKIYA

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 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, 0.1-9.5 wt% Co and 1.0-4.0 wt% Ru in term of its weight ratio, with the remainder consisting of Ni and unavoidable impurities.

公开(公告)号：DE60203562T2

公开(公告)日：2006-02-09

申请号：DE60203562

申请日：2002-05-29

Applicant: ISHIKAWAJIMA HARIMA HEAVY IND ,  NAT INST FOR MATERIALS SCIENCE

Inventor： KOIZUMI YUTAKA ,  KOBAYASHI TOSHIHARU ,  YOKOKAWA TADAHARU ,  HARADA HIROSHI ,  AOKI YASUHIRO ,  ARAI MIKIYA ,  MASAKI SHOJU ,  KAKIUCHI RYOJI ,  CHIKUGO KAZUYOSHI

IPC: C22C19/00 ,  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 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.

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

IPC: C22C19/05 ,  C22F1/10

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.

公开(公告)号：DE60203562D1

公开(公告)日：2005-05-12

申请号：DE60203562

申请日：2002-05-29

Applicant: ISHIKAWAJIMA HARIMA HEAVY IND ,  NAT INST FOR MATERIALS SCIENCE

Inventor： KOIZUMI YUTAKA ,  KOBAYASHI TOSHIHARU ,  YOKOKAWA TADAHARU ,  HARADA HIROSHI ,  AOKI YASUHIRO ,  ARAI MIKIYA ,  MASAKI SHOJU ,  KAKIUCHI RYOJI ,  CHIKUGO KAZUYOSHI

IPC: C22C19/05 ,  C22C19/00

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.

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.