Title:
蒸気タービン動翼及び蒸気タービン動翼の製造方法
Document Type and Number:
Japanese Patent JP6301554
Kind Code:
B2
Abstract:
A steam turbine rotor blade achieving both abrasion resistance and reliability, and a method for manufacturing a steam turbine rotor blade capable of obtaining such a steam turbine rotor blade are provided. A steam turbine rotor blade according to the invention is characterized by including a blade base material and an erosion shield formed on a surface of the blade base material, wherein the blade base material is composed of a titanium alloy, and the erosion shield is composed of a weld overlay layer including a parent phase (30) composed of pure titanium in which a metal element is solid-dissolved or a titanium alloy in which a metal element is solid-dissolved, and a hard phase (31) dispersed in the parent phase.
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Inventors:
Shinji Oikawa
Masahiko Arai
Hiroyuki Doi
Yoda Hideo
Masahiko Arai
Hiroyuki Doi
Yoda Hideo
Application Number:
JP2017512522A
Publication Date:
March 28, 2018
Filing Date:
April 11, 2016
Export Citation:
Assignee:
Mitsubishi Hitachi Power Systems Co., Ltd.
International Classes:
F01D5/28; B23K9/04; B23K15/00; B23K26/342; C22C14/00; F01D25/00
Domestic Patent References:
| JP2014530958A | ||||
| JP2010222705A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation