公开(公告)号：EP3012337A4

公开(公告)日：2017-03-15

申请号：EP14814461

申请日：2014-06-02

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： TETSUI TOSHIMITSU

IPC: C22C14/00 ,  B21J5/00 ,  B21K1/32 ,  B21K3/04 ,  C21D8/00 ,  C21D9/00 ,  C22C30/00 ,  C22F1/18

CPC classification number: C21D9/0068 ,  C21D8/00 ,  C22C14/00 ,  C22C30/00 ,  C22F1/00 ,  C22F1/04 ,  C22F1/183 ,  F01D5/28 ,  F05D2220/30 ,  F05D2230/25 ,  F05D2230/40 ,  F05D2240/30 ,  F05D2300/174

Abstract: Provided is a hot-forged TiAl-based alloy of the present invention containing 40 to 45 atom% of Al and additive elements in the following composition ratio (A) or (B), and the balance Ti with inevitable impurities: (A) Nb: 7 to 9 atom%, Cr: 0.4 to 4.0 atom%, Si: 0.3 to 1.0 atom%, and C: 0.3 to 1.0 atom%; and (B) at least one of Cr: 0.1 to 2.0 atom%, Mo: 0.1 to 2.0 atom%, Mn: 0.1 to 4.0 atom%, Nb: 0.1 to 8.0 atom%, and V: 0.1 to 8.0 atom%. The TiAl-based alloy is characterized by having a fine structure of densely arranged lamella grains that are laminated alternately with a Ti 3 Al phase (±2-phase) and a TiAl phase (³-phase) and have an average grain size of 1 to 200 µm.

公开(公告)号：EP2650272A4

公开(公告)日：2015-02-25

申请号：EP11846452

申请日：2011-12-09

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： HARADA HIROSHI ,  TETSUI TOSHIMITSU ,  KAWAGISHI KYOKO ,  GU YUEFENG ,  YOKOKAWA TADAHARU ,  KOBAYASHI TOSHIHARU ,  OSADA TOSHIO ,  ZHONG ZHIHONG

IPC: C04B35/80 ,  C04B35/64

CPC classification number: C04B35/803 ,  C04B35/053 ,  C04B35/117 ,  C04B35/14 ,  C04B35/185 ,  C04B35/20 ,  C04B35/443 ,  C04B35/46 ,  C04B35/465 ,  C04B35/481 ,  C04B35/488 ,  C04B35/49 ,  C04B2235/3206 ,  C04B2235/522 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5232 ,  C04B2235/5236 ,  C04B2235/5256 ,  C04B2235/5264 ,  C04B2235/616

公开(公告)号：EP3031939A4

公开(公告)日：2017-02-15

申请号：EP14834221

申请日：2014-08-04

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： HARADA HIROSHI ,  GU YUEFENG ,  ISHIHARA SATORU ,  YOKOKAWA TADAHARU ,  KOBAYASHI TOSHIHARU ,  KOIZUMI YUTAKA ,  TETSUI TOSHIMITSU

IPC: C22C19/03 ,  C22C19/05

CPC classification number: C22C19/057 ,  C22C19/007

Abstract: An oxide particle dispersion-strengthened Ni-base superalloy includes Ni, 0.1% by weight to 14.0% by weight of Ru, 0.1% by weight to 14.0% by weight of Al, and inevitable impurities and has a crystal structure containing 0.01% by weight to 3.0% by weight of dispersed oxide particles based on the total amount of the superalloy.

Abstract translation: 一种氧化物粒子弥散强化Ni基超合金，其特征在于，含有Ni：0.1重量％〜14.0重量％的Ru，0.1重量％〜14.0重量％的Al和不可避免的杂质，并且具有含有0.01重量％ 至3.0％（重量）的分散氧化物颗粒，以高温合金的总量计。