公开(公告)号：EP2305846A4

公开(公告)日：2014-10-29

申请号：EP09770266

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 ,  KITASHIMA TOMONORI ,  YEH AN-CHOU

IPC: C22C19/05 ,  C22F1/10 ,  C30B11/00

CPC classification number: C22C19/057

公开(公告)号：EP2305845A4

公开(公告)日：2015-05-13

申请号：EP09770265

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 ,  KITASHIMA TOMONORI ,  YEH AN-CHOU

IPC: C22C19/05 ,  C22F1/10 ,  C30B11/00

CPC classification number: C22C19/057

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.

公开(公告)号：CA2728167C

公开(公告)日：2014-10-28

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 ,  KITASHIMA TOMONORI ,  YEH AN-CHOU

IPC: C22C19/05

Abstract: Provided is an Ni-based single crystal superalloy wherein the ingredients have a composition containing, as ratio by mass, from 5.0% by mass to 7.0% by mass of Al, from 4.0% by mass to 8.0% by mass of Ta, from 0% by mass to 2.0% by mass of Mo, from 3.0% by mass to 8.0% by mass of W, from 3.0% by mass to 8.0% by mass of Re, from 0% by mass to 0.50% by mass of Hf, from 3.0% by mass to 6.0% by mass of Cr, from 0% by mass to 9.9% by mass of Co, from 1.0% by mass to 14.0% by mass of Ru, and from 0.1 % by mass to 4.0% by mass of Nb, with the balance of Ni and inevitable impurities. The alloy prevents TCP phase precipitation at high temperatures, therefore having improved strength at high temperatures and having oxidation resistance at high temperatures. Specifically, the invention is to provide a high-performance Ni-based single crystal superalloy having well balanced high-temperature strength and high-temperature oxidation resistance in practical use. The invention is also to provide the Ni-based single crystal superalloy having sufficient characteristics in point of "heat treatment window" that should not be overlooked in practical use.

公开(公告)号：CA2729117C

公开(公告)日：2016-03-22

申请号：CA2729117

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 ,  KITASHIMA TOMONORI ,  YEH AN-CHOU

IPC: C22C19/05

Abstract: Provided is an Ni-based single crystal superalloy wherein the ingredients have a composition containing, as ratio by mass, from 5.0% by mass to 7.0% by mass of Al, from 4.0% by mass to 8.0% by mass of Ta, from 0% by mass to 2.0% by mass of Mo, from 3.0% by mass to 8.0% by mass of W, from 3.0% by mass to 8.0% by mass of Re, from 0% by mass to 0.50% by mass of Hf, from 3.0% by mass to 7.0% by mass of Cr, from 0% by mass to 9.9% by mass of Co and from 1.0% by mass to 10.0% by mass of Ru, with the balance of Ni and inevitable impurities. The alloy prevents TCP phase precipitation at high temperatures, therefore having improved strength at high temperatures and having oxidation resistance at high temperatures. The above-mentioned first-generation alloy CMSX-2 and second-generation alloy CMSX-4 are, though comparable thereto in point of creep strength at low temperatures, inferior to third-generation alloys in point of creep strength at high temperatures, since a large quantity of eutectic .gamma.'-phase remains therein even after high-temperature solution treatment.

公开(公告)号：CA2729117A1

公开(公告)日：2009-12-30

申请号：CA2729117

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, 3.0-7.0% of Cr, 0-9.9% of Co, 1.0-10.0% of Ru and the balance of Ni and unavoidable impurities. The Ni-based single crystal superalloy is suppressed in TCP phase precipitation at high temperatures, thereby being improved in strength at high temperatures, while having oxidation resistance at high temperatures at the same time.