IT1258962B - Sistema di prova per palette di turbina - Google Patents

Sistema di prova per palette di turbina

Info

Publication number
IT1258962B
IT1258962B ITMI921420A ITMI921420A IT1258962B IT 1258962 B IT1258962 B IT 1258962B IT MI921420 A ITMI921420 A IT MI921420A IT MI921420 A ITMI921420 A IT MI921420A IT 1258962 B IT1258962 B IT 1258962B
Authority
IT
Italy
Prior art keywords
turbine blades
vanes
test system
response
eddy current
Prior art date
Application number
ITMI921420A
Other languages
English (en)
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
Publication of ITMI921420A0 publication Critical patent/ITMI921420A0/it
Application filed filed Critical
Publication of ITMI921420A1 publication Critical patent/ITMI921420A1/it
Application granted granted Critical
Publication of IT1258962B publication Critical patent/IT1258962B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/904—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

La presente invenzione si riferisce ad un metodo e ad una apparecchiatura per eseguire una non distruttiva su materiale di palette di turbina a combustione in servizio. Secondo l'invenzione la prova viene eseguita inserendo sonde a correnti parassite (EC) nei fori di raffreddamento delle palette e valutando la risposta alle correnti parassite delle paletta. Le sonde a correnti parassite sono preferibilmente accoppiate insieme in un modo differenziale. La risposta misurata viene quindi confrontata con una risposta determinata precedentemente corrispondente ad una condizione di materiale nota. Una valutazione della paletta viene eseguita sulla base di tale confronto.
ITMI921420A 1991-06-24 1992-06-10 Sistema di prova per palette di turbina IT1258962B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/720,038 US5140264A (en) 1991-06-24 1991-06-24 Method for non-destructively assessing the condition of a turbine blade using eddy current probes inserted within cooling holes

Publications (3)

Publication Number Publication Date
ITMI921420A0 ITMI921420A0 (it) 1992-06-09
ITMI921420A1 ITMI921420A1 (it) 1993-12-10
IT1258962B true IT1258962B (it) 1996-03-11

Family

ID=24892398

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921420A IT1258962B (it) 1991-06-24 1992-06-10 Sistema di prova per palette di turbina

Country Status (3)

Country Link
US (1) US5140264A (it)
CA (1) CA2072029A1 (it)
IT (1) IT1258962B (it)

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DE4342602A1 (de) * 1993-12-14 1995-06-22 Busch Dieter & Co Prueftech Elektronisches Bauelement, inbesondere Spuleneinheit
US5442285A (en) * 1994-02-28 1995-08-15 Westinghouse Electric Corporation NDE eddy current sensor for very high scan rate applications in an operating combustion turbine
DE4410987A1 (de) * 1994-03-30 1995-10-05 Foerster Inst Dr Friedrich Hochauflösende Wirbelstromsonde
US5659248A (en) * 1994-10-17 1997-08-19 General Electric Company Multilayer eddy current probe array for complete coverage of an inspection surface without mechanical scanning
US5617025A (en) * 1994-10-19 1997-04-01 Syron Engineering & Manufacturing Corporation Side part sensor for determining the presence or absence of a nut and a hole disposed adjacent the nut
US5602474A (en) * 1995-06-06 1997-02-11 United Technologies Corporation Detecting cracks in non-uniform areas of metal parts including position correlation
US5811970A (en) * 1996-05-10 1998-09-22 Northrop Grumman Corporation Electromagnetic test for microstructure anomalies such as alpha-case, and for carbide precipitates and untempered and overtempered martensite
US5821747A (en) * 1997-01-08 1998-10-13 Queen's University At Kingston Method and apparatus for scanning a plurality of parallel pipes for flaws using tube-to-tube through transmissions
US5744952A (en) * 1997-02-25 1998-04-28 Mcdermott Technology, Inc. Eddy current measurement of tube element spacing
ES2191504B1 (es) * 1999-12-28 2005-02-16 Universidad De Oviedo. Combustor experimental para el ensayo de materiales de alabes de turbinas de gas.
FR2811076B1 (fr) * 2000-06-29 2002-09-20 Snecma Moteurs Procede de mesure d'epaisseur de paroi d'une aube creuse
US7023205B1 (en) 2000-08-01 2006-04-04 General Dynamics Advanced Information Systems, Inc. Eddy current sensor capable of sensing through a conductive barrier
US6487922B1 (en) 2000-09-25 2002-12-03 Siemens Westinghouse Power Corporation Steam turbine inlet sleeve inspection apparatus and method
US6619109B1 (en) 2000-09-25 2003-09-16 Siemens Westinghouse Power Corporation Steam turbine inlet bell seal inspection apparatus and method
US6707297B2 (en) * 2002-04-15 2004-03-16 General Electric Company Method for in-situ eddy current inspection of coated components in turbine engines
EP1394360A1 (de) * 2002-08-23 2004-03-03 Siemens Aktiengesellschaft Verfahren zur zerstörungsfreien Prüfung eines Bauteils sowie zur Herstellung einer Gasturbinenschaufel
DE10335657B4 (de) * 2003-08-04 2015-04-30 Alstom Technology Ltd. Parametrische Herstellung von Kühlbohrungen
US6943570B2 (en) * 2003-09-26 2005-09-13 Honeywell International, Inc. Device for detecting a crack on a turbine blade of an aircraft engine
JP4062232B2 (ja) * 2003-10-20 2008-03-19 株式会社日立製作所 Ｘ線ｃｔ装置及びｘ線ｃｔ装置による撮像方法
US7026811B2 (en) * 2004-03-19 2006-04-11 General Electric Company Methods and apparatus for eddy current inspection of metallic posts
US11680867B2 (en) 2004-06-14 2023-06-20 Wanda Papadimitriou Stress engineering assessment of risers and riser strings
US11710489B2 (en) 2004-06-14 2023-07-25 Wanda Papadimitriou Autonomous material evaluation system and method
US7075296B2 (en) * 2004-11-09 2006-07-11 Siemens Power Generation, Inc. Inspection carriage for turbine blades
US7323868B2 (en) 2005-09-21 2008-01-29 General Dynamics Advanced Information Systems, Inc. System and method for temperature independent measurement of standoff distance using an eddy current sensor
US7162384B1 (en) 2005-09-21 2007-01-09 General Dynamics Advanced Information System and method for temperature compensation of eddy current sensor waveform parameters
US8486545B2 (en) * 2005-09-28 2013-07-16 Southwest Research Institute Systems and methods for flaw detection and monitoring at elevated temperatures with wireless communication using surface embedded, monolithically integrated, thin-film, magnetically actuated sensors, and methods for fabricating the sensors
JP2008089328A (ja) 2006-09-29 2008-04-17 Hitachi Ltd 渦電流探傷装置及び渦電流探傷方法
US9551689B2 (en) * 2010-02-26 2017-01-24 United Technologies Corporation Inspection device utilizing eddy currents
US11156585B2 (en) * 2019-02-08 2021-10-26 Raytheon Technologies Corporation Method of nondestructive turbine airfoil inspection and repair
US11378511B2 (en) * 2019-11-21 2022-07-05 Applied Materials, Inc. Methods and apparatus for detecting corrosion of conductive objects
CN113466332B (zh) * 2021-07-02 2023-02-28 西安交通大学 针对叶片气膜孔边裂纹检测的柔性阵列涡流探头及方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407352A (en) * 1965-06-07 1968-10-22 Western Electric Co Method of and apparatus for monitoring the thickness of a non-conductive coating on a conductive base
FR2305809A1 (fr) * 1975-03-25 1976-10-22 Crouzet Sa Dispositif d'authentification de titres monetaires
US4095181A (en) * 1976-12-17 1978-06-13 The Boeing Company Rotating pot shaped eddy current probe in which only a small fraction of the lip forming the outer core portion is retained
CH625619A5 (it) * 1977-12-07 1981-09-30 Bbc Brown Boveri & Cie
US4194149A (en) * 1977-12-15 1980-03-18 The Babcock & Wilcox Company Method for generating the eddy current signature of a flaw in a tube proximate a contiguous member which obscures the flaw signal
JPS55141653A (en) * 1979-04-20 1980-11-05 Mitsubishi Heavy Ind Ltd Deterioration state deciding method of strong precipitation hardness type iron base alloy
US4418315A (en) * 1981-05-22 1983-11-29 Combustion Engineering, Inc. Method for effecting a surface examination of coated components
US4578643A (en) * 1983-11-18 1986-03-25 Westinghouse Electric Corp. Simulation apparatus for eddy current inspection techniques
US4528856A (en) * 1984-01-17 1985-07-16 Westinghouse Electric Corp. Eddy current stress-strain gauge
US4746858A (en) * 1987-01-12 1988-05-24 Westinghouse Electric Corp. Non destructive testing for creep damage of a ferromagnetic workpiece
US5028100A (en) * 1989-06-15 1991-07-02 Trustees Of The Thomas A. D. Gross 1988 Revocable Trust Methods for nondestructive eddy-current testing of structural members with automatic characterization of faults

Also Published As

Publication number Publication date
US5140264A (en) 1992-08-18
CA2072029A1 (en) 1992-12-25
ITMI921420A0 (it) 1992-06-09
ITMI921420A1 (it) 1993-12-10

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950623