JPS55141653A - Deterioration state deciding method of strong precipitation hardness type iron base alloy - Google Patents
Deterioration state deciding method of strong precipitation hardness type iron base alloyInfo
- Publication number
- JPS55141653A JPS55141653A JP4859979A JP4859979A JPS55141653A JP S55141653 A JPS55141653 A JP S55141653A JP 4859979 A JP4859979 A JP 4859979A JP 4859979 A JP4859979 A JP 4859979A JP S55141653 A JPS55141653 A JP S55141653A
- Authority
- JP
- Japan
- Prior art keywords
- ect
- deterioration state
- probe coil
- base alloy
- type iron
- 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
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
PURPOSE: To read the positive and negative of the respective eddy current measuring values (ECT values) of the material to be measured and the material to be measured before use and nondestructively inspect the deterioration state by comparing said values.
CONSTITUTION: A probe coil 2 is contacted to a reference test piece 1 and ECT indication is matched to zero by adjusting an ECT device 3. Next, the probe coil 2 is contacted subsequently with each part of the material 4 to be measured and the ECT value (this refers to the impedance change amount of the probe coil changing by the effect of the eddy current generated in a metal body when the probe coil being flowed with high-frequency electric current is approached to the metal body) is read and if it is negative, it is decided that the test piece has deteriorated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4859979A JPS55141653A (en) | 1979-04-20 | 1979-04-20 | Deterioration state deciding method of strong precipitation hardness type iron base alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4859979A JPS55141653A (en) | 1979-04-20 | 1979-04-20 | Deterioration state deciding method of strong precipitation hardness type iron base alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55141653A true JPS55141653A (en) | 1980-11-05 |
Family
ID=12807864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4859979A Pending JPS55141653A (en) | 1979-04-20 | 1979-04-20 | Deterioration state deciding method of strong precipitation hardness type iron base alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55141653A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03170841A (en) * | 1989-11-30 | 1991-07-24 | Nippon Yakin Kogyo Co Ltd | Non-destructive hardness measurement for conductive material |
| US5059903A (en) * | 1987-09-21 | 1991-10-22 | Hitachi, Ltd. | Method and apparatus utilizing a magnetic field for detecting degradation of metal material |
| US5117184A (en) * | 1988-06-23 | 1992-05-26 | Allison Sidney G | Magnetic remanence method and apparatus to test materials for embrittlement |
| US5140264A (en) * | 1991-06-24 | 1992-08-18 | Westinghouse Electric Corp. | Method for non-destructively assessing the condition of a turbine blade using eddy current probes inserted within cooling holes |
| JPH0894581A (en) * | 1994-09-20 | 1996-04-12 | Nuclear Fuel Ind Ltd | Method for evaluating the degree of thermal embrittlement of materials |
| JP2012533752A (en) * | 2009-07-23 | 2012-12-27 | ウエスチングハウス・エレクトリック・カンパニー・エルエルシー | Method of processing steam generator capillaries at nuclear power plants |
| JP2017211291A (en) * | 2016-05-26 | 2017-11-30 | 株式会社Ihi | Method and apparatus for detecting exposure of precipitation-hardened aluminum alloy members to abnormally high temperature |
-
1979
- 1979-04-20 JP JP4859979A patent/JPS55141653A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059903A (en) * | 1987-09-21 | 1991-10-22 | Hitachi, Ltd. | Method and apparatus utilizing a magnetic field for detecting degradation of metal material |
| US5134368A (en) * | 1987-09-21 | 1992-07-28 | Hitachi, Ltd. | Apparatus for magnetically detecting degradation of metal material using superconductor sensor system and reference material data comparison |
| US5117184A (en) * | 1988-06-23 | 1992-05-26 | Allison Sidney G | Magnetic remanence method and apparatus to test materials for embrittlement |
| JPH03170841A (en) * | 1989-11-30 | 1991-07-24 | Nippon Yakin Kogyo Co Ltd | Non-destructive hardness measurement for conductive material |
| US5140264A (en) * | 1991-06-24 | 1992-08-18 | Westinghouse Electric Corp. | Method for non-destructively assessing the condition of a turbine blade using eddy current probes inserted within cooling holes |
| JPH0894581A (en) * | 1994-09-20 | 1996-04-12 | Nuclear Fuel Ind Ltd | Method for evaluating the degree of thermal embrittlement of materials |
| JP2012533752A (en) * | 2009-07-23 | 2012-12-27 | ウエスチングハウス・エレクトリック・カンパニー・エルエルシー | Method of processing steam generator capillaries at nuclear power plants |
| US9177678B2 (en) | 2009-07-23 | 2015-11-03 | Westinghouse Electric Company Llc | Method of processing steam generator tubes of nuclear power plant |
| JP2017211291A (en) * | 2016-05-26 | 2017-11-30 | 株式会社Ihi | Method and apparatus for detecting exposure of precipitation-hardened aluminum alloy members to abnormally high temperature |
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