Title:
WELDED STRUCTURE, AND WELDING METHOD OF STRUCTURE
Document Type and Number:
Japanese Patent JP2007044698
Kind Code:
A
Abstract:
To extend the service life of a structure by suppressing the occurrence and development of cracks in a welded structure constituting a power generation plant and in a welding method of the structure.
In the welded structure 10 being in contact with at least a corrosive environment, a first weld material layer 13 having a weld material to be transformed from austenite to martensite or bainite deposited thereon is provided in an area 12 to be welded, and a second weld material layer 14 having a weld material with the corrosion resistance equivalent to or more than that of base materials 11a, 11b deposited thereon is provided in an area in contact with the corrosive environment including a surface of the first weld material layer 13.
Inventors:
KUBO TATSUYA
ITO MIKIRO
KIKUCHI MASAAKI
TANAKA NORIHIKO
ITO MIKIRO
KIKUCHI MASAAKI
TANAKA NORIHIKO
Application Number:
JP2005228597A
Publication Date:
February 22, 2007
Filing Date:
August 05, 2005
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
B23K31/00; B23K9/23; C21D7/06; C21D9/50; B23K9/00; B23K103/04
Domestic Patent References:
| JPS6018293A | 1985-01-30 |
Attorney, Agent or Firm:
Hisashi Hatano
Shunguchi Sekiguchi
Akio Saruwatari
Junichi Furukawa
Shunguchi Sekiguchi
Akio Saruwatari
Junichi Furukawa