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Patent Searching and Data


Title:
STEAM TURBINE ROTOR BLADE AND METHOD FOR MANUFACTURING STEAM TURBINE ROTOR BLADE
Document Type and Number:
WIPO Patent Application WO/2016/167214
Kind Code:
A1
Abstract:
Provided are: a steam turbine rotor blade that is both wear resistant and reliable; and a method for manufacturing a steam turbine rotor blade capable of obtaining such a steam turbine rotor blade. The steam turbine rotor blade according to the present invention is characterized by having: a blade substrate; and an erosion shield formed on the surface of the blade substrate, wherein the blade substrate comprises a titanium alloy, and the erosion shield comprises a weld overlay layer containing: a parent phase (30) comprising pure titanium wherein metal elements have been solid-solubilized or a titanium alloy wherein metal elements have been solid-solubilized; and a hard phase (31) dispersed in the parent phase.

Inventors:
OIKAWA SHINJI (JP)
ARAI MASAHIKO (JP)
DOI HIROYUKI (JP)
YODA HIDEO (JP)
Application Number:
PCT/JP2016/061677
Publication Date:
October 20, 2016
Filing Date:
April 11, 2016
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D5/28; B23K10/02; B23K15/00; B23K26/21; B23K26/342; B23K31/00; C22C14/00; C22F1/02; C22F1/18; F01D25/00; C22F1/00
Foreign References:
JP2014530958A2014-11-20
JP2010222705A2010-10-07
Other References:
See also references of EP 3284909A4
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
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