Title:
FRICTION STIR TOOL
Document Type and Number:
Japanese Patent JP2013121621
Kind Code:
A
Abstract:
To provide a friction stir tool that has high-temperature strength, is superior in wear resistance at high temperature, and has superior productivity.
The friction stir tool is formed of a Co-based alloy containing a γ-phase representing an Al structure and a γ'-phase representing an L12 structure precipitated in the γ-phase, and characterized in that the γ'-phase is of (Co, X)3(Al, W, Z), and the Co-based alloy contains 30 to 40 at% of Ni, wherein X is mainly Ni, and Z is mainly Cr and Ta.
Inventors:
PARK SEUNG HWAN
HIRANO SATOSHI
KONNO SHINYA
SATO JUN
KONAKAWA HIROYUKI
SATO YUTAKA
ISHIDA KIYOHITO
OMORI TOSHIHIRO
HIRANO SATOSHI
KONNO SHINYA
SATO JUN
KONAKAWA HIROYUKI
SATO YUTAKA
ISHIDA KIYOHITO
OMORI TOSHIHIRO
Application Number:
JP2012286858A
Publication Date:
June 20, 2013
Filing Date:
December 28, 2012
Export Citation:
Assignee:
HITACHI LTD
UNIV TOHOKU
UNIV TOHOKU
International Classes:
B23K20/12; C22C19/05; C22C19/07
Domestic Patent References:
| JP2005152909A | 2005-06-16 |
Foreign References:
| WO2007032293A1 | 2007-03-22 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation
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