公开(公告)号：US20140007995A1

公开(公告)日：2014-01-09

申请号：US14017920

申请日：2013-09-04

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Kiyohito Ishida ,  Ryosuke Kainuma ,  Katunari Oikawa ,  Ikuo Ohnuma ,  Jun Sato

IPC: C22F1/10

CPC classification number: C22F1/10 ,  C22C19/07

Abstract: A process for producing a Co-base alloy which has a basic composition including, in terms of mass proportion, 0.1%-10% Al, 3.0-45% W, and Co as the remainder and has an intermetallic compound of the L12 type [Co3 (Al, W)] dispersed and precipitated therein. Part of the Co may be replaced with Ni, Ir, Fe, Cr, Re, or Ru, while part of the Al and W may be replaced with Ni, Ti, Nb, Zr, V, Ta or Hf. The intermetallic compound [Co3 (Al, W)] has a high melting point, and this compound and the matrix are mismatched little with respect to lattice constant. Thus, the cobalt-base alloy can have high-temperature strength equal to that of nickel-base alloys and excellent structure stability.

Abstract translation: 一种钴基合金的制造方法，其具有以质量比计含有0.1％-10％Al，3.0-45％W和Co作为剩余部分的碱性组成，并具有L12型金属间化合物[ Co3（Al，W）]。 Co的一部分可以用Ni，Ir，Fe，Cr，Re或Ru代替，而Al和W的一部分可以被Ni，Ti，Nb，Zr，V，Ta或Hf代替。 金属间化合物[Co 3（Al，W）]具有高熔点，并且该化合物和基体相对于晶格常数几乎不匹配。 因此，钴基合金可以具有与镍基合金相当的高温强度和优异的结构稳定性。

公开(公告)号：US09453274B2

公开(公告)日：2016-09-27

申请号：US14017920

申请日：2013-09-04

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Kiyohito Ishida ,  Ryosuke Kainuma ,  Katunari Oikawa ,  Ikuo Ohnuma ,  Jun Sato

IPC: C22F1/10 ,  C22C19/07

CPC classification number: C22F1/10 ,  C22C19/07

Abstract: A process for producing a Co-base alloy which has a basic composition including, in terms of mass proportion, 0.1%-10% Al, 3.0-45% W, and Co as the remainder and has an intermetallic compound of the L12 type [Co3 (Al,W)] dispersed and precipitated therein. Part of the Co may be replaced with Ni, Ir, Fe, Cr, Re, or Ru, while part of the Al and W may be replaced with Ni, Ti, Nb, Zr, V, Ta or Hf. The intermetallic compound [Co3 (Al, W)] has a high melting point, and this compound and the matrix are mismatched little with respect to lattice constant. Thus, the cobalt-base alloy can have high-temperature strength equal to that of nickel-base alloys and excellent structure stability.

Abstract translation: 一种钴基合金的制造方法，其具有以质量比计含有0.1％-10％Al，3.0-45％W和Co作为剩余部分的碱性组成，并具有L12型金属间化合物[ Co3（Al，W）]。 Co的一部分可以用Ni，Ir，Fe，Cr，Re或Ru代替，而Al和W的一部分可以被Ni，Ti，Nb，Zr，V，Ta或Hf代替。 金属间化合物[Co 3（Al，W）]具有高熔点，并且该化合物和基体相对于晶格常数几乎不匹配。 因此，钴基合金可以具有与镍基合金相当的高温强度和优异的结构稳定性。