JPS5663253A - Nondestructive measuring method - Google Patents

Nondestructive measuring method

Info

Publication number
JPS5663253A
JPS5663253A JP13877979A JP13877979A JPS5663253A JP S5663253 A JPS5663253 A JP S5663253A JP 13877979 A JP13877979 A JP 13877979A JP 13877979 A JP13877979 A JP 13877979A JP S5663253 A JPS5663253 A JP S5663253A
Authority
JP
Japan
Prior art keywords
change
metal material
ultrasonic attenuation
attenuation constant
measuring method
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
JP13877979A
Other languages
Japanese (ja)
Inventor
Kyo Matsuzaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13877979A priority Critical patent/JPS5663253A/en
Publication of JPS5663253A publication Critical patent/JPS5663253A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To realize a measurement of the residual life, by measuring the change of the ultrasonic attenuation constant and thus detecting the degree of deterioration of the metal material in a nondestructive way and according to the lapse of time.
CONSTITUTION: The ultrasonic attenuation constant of the metal material is measured. This constant is applied to the relation curve chart between the change of the heating time and the heating temperature under the stress of the known metal material and the change of the ultrasonic attenuation constant. As a result, both the void occurrence and the life can be presumed.
COPYRIGHT: (C)1981,JPO&Japio
JP13877979A 1979-10-29 1979-10-29 Nondestructive measuring method Pending JPS5663253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13877979A JPS5663253A (en) 1979-10-29 1979-10-29 Nondestructive measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13877979A JPS5663253A (en) 1979-10-29 1979-10-29 Nondestructive measuring method

Publications (1)

Publication Number Publication Date
JPS5663253A true JPS5663253A (en) 1981-05-29

Family

ID=15229995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13877979A Pending JPS5663253A (en) 1979-10-29 1979-10-29 Nondestructive measuring method

Country Status (1)

Country Link
JP (1) JPS5663253A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5892856A (en) * 1981-11-27 1983-06-02 Hitachi Constr Mach Co Ltd Monitoring device for crazing of structure
JPH0333652A (en) * 1989-06-30 1991-02-13 Hitachi Ltd Ultrasonic inspection method and apparatus
JP2006104268A (en) * 2004-10-01 2006-04-20 Sekisui Chem Co Ltd Aqueous dispersion composition of polyvinyl acetal resin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5892856A (en) * 1981-11-27 1983-06-02 Hitachi Constr Mach Co Ltd Monitoring device for crazing of structure
JPH0333652A (en) * 1989-06-30 1991-02-13 Hitachi Ltd Ultrasonic inspection method and apparatus
JP2006104268A (en) * 2004-10-01 2006-04-20 Sekisui Chem Co Ltd Aqueous dispersion composition of polyvinyl acetal resin

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