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JPS57200544A - Moving blade of steam turbine and preparation thereof - Google Patents

Moving blade of steam turbine and preparation thereof

Info

Publication number
JPS57200544A
JPS57200544A JP8491881A JP8491881A JPS57200544A JP S57200544 A JPS57200544 A JP S57200544A JP 8491881 A JP8491881 A JP 8491881A JP 8491881 A JP8491881 A JP 8491881A JP S57200544 A JPS57200544 A JP S57200544A
Authority
JP
Japan
Prior art keywords
less
phase
surface layer
front flange
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8491881A
Other languages
Japanese (ja)
Inventor
Takashi Ebisutani
Masao Yamamoto
Mitsuo Kawai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8491881A priority Critical patent/JPS57200544A/en
Publication of JPS57200544A publication Critical patent/JPS57200544A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To enhance erosion resistance of a steam turbine moving blade by forming the surface layer of the front flange part of a blade by forming the surface layer of the front flange part of a blade leading end from Cr-Ni stainless steel containing a predetermined amount of Mn as well as free from ferrite phase and having ε phase or austenite phase.
CONSTITUTION: At least the surface layer of the erosion damage receiving part of the front flange part of a blade leading end is formed by soldering or welding an erosion shield plate comprising alloied steel containing, on the wt% basis, 0.2 or less C, 2 or less Si, 10W20 Cr, 0.5W10.2 Ni, 20 or less Mn, according to necessity, one or more of 0.2W0.3 N, 0.01W0.1 Nb, 0.5W5 Co and the remainder substantially Fe or 2 or less Mo. In this case C forms phase or austenite phase along with Mn, Ni to enhance erosion resistance. When Nb or Co is added further, erosion resistance is further improved. In addition, durability of this steel is lower than that of SUS304 or the like and this steel is especially suitable for a fusion bond layer of build up welding because excellent in preventing crack or deformation.
COPYRIGHT: (C)1982,JPO&Japio
JP8491881A 1981-06-04 1981-06-04 Moving blade of steam turbine and preparation thereof Pending JPS57200544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8491881A JPS57200544A (en) 1981-06-04 1981-06-04 Moving blade of steam turbine and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8491881A JPS57200544A (en) 1981-06-04 1981-06-04 Moving blade of steam turbine and preparation thereof

Publications (1)

Publication Number Publication Date
JPS57200544A true JPS57200544A (en) 1982-12-08

Family

ID=13844087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8491881A Pending JPS57200544A (en) 1981-06-04 1981-06-04 Moving blade of steam turbine and preparation thereof

Country Status (1)

Country Link
JP (1) JPS57200544A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005086A1 (en) * 1987-01-09 1988-07-14 Hitachi, Ltd. Heat-resistant steel and gas turbine made of the same
JPS63270445A (en) * 1987-04-27 1988-11-08 Hitachi Ltd Sediment wear resistant steel
JPH01273692A (en) * 1988-03-14 1989-11-01 Westinghouse Electric Corp <We> Method of repairing turbine component friction surface
EP2072176A1 (en) * 2007-12-21 2009-06-24 Sulzer Markets and Technology AG Method of manufacturing an erosion protection steel layer using laser buildup; Component with such an erosion protection steel layer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005086A1 (en) * 1987-01-09 1988-07-14 Hitachi, Ltd. Heat-resistant steel and gas turbine made of the same
JPS63270445A (en) * 1987-04-27 1988-11-08 Hitachi Ltd Sediment wear resistant steel
JPH0524222B2 (en) * 1987-04-27 1993-04-07 Hitachi Ltd
JPH01273692A (en) * 1988-03-14 1989-11-01 Westinghouse Electric Corp <We> Method of repairing turbine component friction surface
EP2072176A1 (en) * 2007-12-21 2009-06-24 Sulzer Markets and Technology AG Method of manufacturing an erosion protection steel layer using laser buildup; Component with such an erosion protection steel layer
EP2072177A1 (en) * 2007-12-21 2009-06-24 Sulzer Markets and Technology AG Method for manufacturing an erosion protection layer and component with such an erosion protection layer

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