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JPS5728805A - Steam turbine blade with errosion preventive piece - Google Patents

Steam turbine blade with errosion preventive piece

Info

Publication number
JPS5728805A
JPS5728805A JP10465480A JP10465480A JPS5728805A JP S5728805 A JPS5728805 A JP S5728805A JP 10465480 A JP10465480 A JP 10465480A JP 10465480 A JP10465480 A JP 10465480A JP S5728805 A JPS5728805 A JP S5728805A
Authority
JP
Japan
Prior art keywords
turbine blade
medium metal
crack due
stress corrosion
errosion
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
JP10465480A
Other languages
Japanese (ja)
Inventor
Shohei Suruga
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 JP10465480A priority Critical patent/JPS5728805A/en
Publication of JPS5728805A publication Critical patent/JPS5728805A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To prevent a crack due to stress corrosion and improve fatigue strength by inserting medium metal, of little sensitivity to crack due to stress corrosion, on a joining part of a turbine blade and a errosion preventive piece as well as applying shot peening to said part.
CONSTITUTION: A medium metal 5 is inserted in a portion where a turbine blade 1 is abutted on a corrosion preventive piece 2, and a joining part 6 is welded by electron beam deposition. Material of little sensitivity to crack due to stress corrosion is selected as the medium metal 5, electron beams a, a' are then oscillated at a right angle to a line of deposition and the medium metal are further welded from both obverse and reverse sides. The crack due to stress corrosion is also preventable by further forming an unmelted part in the middle part of the medium metal 5 plank. Furthermore, fatigue strength may be improved by applying shot peening b, b' on a tensile stress remaining part as a result of the deposition.
COPYRIGHT: (C)1982,JPO&Japio
JP10465480A 1980-07-30 1980-07-30 Steam turbine blade with errosion preventive piece Pending JPS5728805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10465480A JPS5728805A (en) 1980-07-30 1980-07-30 Steam turbine blade with errosion preventive piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10465480A JPS5728805A (en) 1980-07-30 1980-07-30 Steam turbine blade with errosion preventive piece

Publications (1)

Publication Number Publication Date
JPS5728805A true JPS5728805A (en) 1982-02-16

Family

ID=14386442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10465480A Pending JPS5728805A (en) 1980-07-30 1980-07-30 Steam turbine blade with errosion preventive piece

Country Status (1)

Country Link
JP (1) JPS5728805A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5584662A (en) * 1995-03-06 1996-12-17 General Electric Company Laser shock peening for gas turbine engine vane repair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5584662A (en) * 1995-03-06 1996-12-17 General Electric Company Laser shock peening for gas turbine engine vane repair

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