公开(公告)号：EP3190196A4

公开(公告)日：2018-03-28

申请号：EP15838357

申请日：2015-09-02

申请人： KK KOBE SEIKO SHO KOBE STEEL LTD

发明人： KUDO FUMIAKI ,  MATSUWAKA DAISUKE ,  DEURA TETSUSHI ,  SAKAMOTO KOICHI ,  TAKAHASHI DAIKI ,  ISHIDA HITOSHI

IPC分类号： C22C1/02 ,  C22B9/04 ,  C22B9/10 ,  C22B9/20 ,  C22C14/00 ,  C22C21/00

CPC分类号： C22B9/20 ,  C22B9/003 ,  C22B9/04 ,  C22B9/10 ,  C22C1/02 ,  C22C14/00 ,  C22C21/00

摘要： A Ti-Al alloy having an Al content of at least 40% by mass, said alloy being produced using an alloy material comprising a titanium material and an aluminum material and having a total oxygen content of at least 0.1 % by mass, is melted and held in an atmosphere of at least 1.33 Pa according to a melting process incorporating a water-cooled copper vessel, thereby reducing the oxygen content of the Ti-Al based alloy.

公开(公告)号：EP3216882A4

公开(公告)日：2018-04-11

申请号：EP15856211

申请日：2015-11-04

申请人： KK KOBE SEIKO SHO KOBE STEEL LTD

发明人： MATSUWAKA DAISUKE ,  KUDO FUMIAKI ,  DEURA TETSUSHI ,  ISHIDA HITOSHI ,  SAKAMOTO KOICHI

IPC分类号： C22C1/02 ,  C22B9/10 ,  C22B9/20 ,  C22C21/00

CPC分类号： C22C1/026 ,  C22B9/10 ,  C22B9/20 ,  C22C1/02 ,  C22C21/00

摘要： To reduce the oxygen content of an Al-Nb-Ti alloy containing 50-75 mass% of Al, 5-30 mass% of Nb, and 80 mass% or less as the total of Al and Nb, the Al-Nb-Ti alloy being produced using an alloy material that comprises an Al material, an Nb material, and a Ti material and contains a total of 0.5 mass% or more of oxygen, by using a dissolution method using a water-cooled copper container to dissolve and hold the Al-Nb-Ti alloy in a 1.33 Pa-2.67 x 10 5 Pa atmosphere at a temperature of 1900K or higher.