Title:
The manufacturing method and steam turbine of the bucket of a steam turbine, and the bucket of a steam turbine
Document Type and Number:
Japanese Patent JP6049331
Kind Code:
B2
Abstract:
A precipitation hardening type martensitic stainless steel of an embodiment contains: Cr: 8.5 to 12.5%; Mo: 1 to 2%; Ni: 8.5 to 11.5%; Ti: 0.6 to 1.4%; C: 0.0005 to 0.05%; Al: 0.0005 to 0.25%; Cu: 0.005 to 0.75%; Nb: 0.0005 to 0.3%; Si: 0.005 to 0.75%; Mn: 0.005 to 1%; and N: 0.0001 to 0.03% by mass, and the balance of Fe and unavoidable impurities.
Inventors:
Takahisa
Haruki Onishi
Yamada Masayuki
Yoji Murata
Kenichi Imai
Haruki Onishi
Yamada Masayuki
Yoji Murata
Kenichi Imai
Application Number:
JP2012149654A
Publication Date:
December 21, 2016
Filing Date:
July 03, 2012
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
C22C38/00; C21D6/00; C22C38/50; F01D5/28
Domestic Patent References:
| JP6158228A |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office