JPS6326340B2 - - Google Patents

Info

Publication number
JPS6326340B2
JPS6326340B2 JP55090628A JP9062880A JPS6326340B2 JP S6326340 B2 JPS6326340 B2 JP S6326340B2 JP 55090628 A JP55090628 A JP 55090628A JP 9062880 A JP9062880 A JP 9062880A JP S6326340 B2 JPS6326340 B2 JP S6326340B2
Authority
JP
Japan
Prior art keywords
layer
propagation
propagation velocity
path length
hardness
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.)
Expired
Application number
JP55090628A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5716348A (en
Inventor
Hirotoshi Kino
Soji Sasaki
Tomyuki Ooyashiki
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 JP9062880A priority Critical patent/JPS5716348A/ja
Publication of JPS5716348A publication Critical patent/JPS5716348A/ja
Publication of JPS6326340B2 publication Critical patent/JPS6326340B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/0289—Internal structure, e.g. defects, grain size, texture

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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 Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP9062880A 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer Granted JPS5716348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9062880A JPS5716348A (en) 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9062880A JPS5716348A (en) 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer

Publications (2)

Publication Number Publication Date
JPS5716348A JPS5716348A (en) 1982-01-27
JPS6326340B2 true JPS6326340B2 (enrdf_load_stackoverflow) 1988-05-30

Family

ID=14003740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9062880A Granted JPS5716348A (en) 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer

Country Status (1)

Country Link
JP (1) JPS5716348A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015522174A (ja) * 2012-07-10 2015-08-03 スネクマ 少なくとも局所的に対称面を含む物体を特性評価する方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0658356B2 (ja) * 1987-12-16 1994-08-03 株式会社日本製鋼所 円柱材の焼入硬化深度測定方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046381B2 (ja) * 1977-04-12 1985-10-15 新日本製鐵株式会社 超音波による鋳造組織の判別法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015522174A (ja) * 2012-07-10 2015-08-03 スネクマ 少なくとも局所的に対称面を含む物体を特性評価する方法

Also Published As

Publication number Publication date
JPS5716348A (en) 1982-01-27

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