JPS54106796A - Hydrogen embrittlement supervisory test of pressure pipe - Google Patents
Hydrogen embrittlement supervisory test of pressure pipeInfo
- Publication number
- JPS54106796A JPS54106796A JP1348578A JP1348578A JPS54106796A JP S54106796 A JPS54106796 A JP S54106796A JP 1348578 A JP1348578 A JP 1348578A JP 1348578 A JP1348578 A JP 1348578A JP S54106796 A JPS54106796 A JP S54106796A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- pressure pipe
- hydrogen embrittlement
- crack
- stress
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
PURPOSE: To detect the hydrogen embrittlement of a pressure pipe of a heavy water reactor, by inserting a test piece into the pressure pipe and stress-fracturing the test piece.
CONSTITUTION: The arc-shaped test piece 6 is cut out from a pressure pipe. A crack 10 is produced in the inside of the test piece. There is local residual compressive stress at the tip of the crack 10. To make the residual stress into tensile stress, the outside of the test piece 6 is pushed at three points by adjusting a bolt 16 and a nut 17 while the test piece is supported at both its ends. The test piece 6 and a jig for the three-point pushing are put together in the pressure pipe of the heavy water reactor. Since there is the tensile stress at the tip of the crack 10, the test piece makes the same hydrogen embrittlement behavior as there is a flaw 4 or a crack 5 in the pressure pipe 3. Therefore, the hydrogen embrittlement of the pressure pipe 3 can be supervised by periodically picking the test piece 6 out of the reactor and fracturing it.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1348578A JPS54106796A (en) | 1978-02-10 | 1978-02-10 | Hydrogen embrittlement supervisory test of pressure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1348578A JPS54106796A (en) | 1978-02-10 | 1978-02-10 | Hydrogen embrittlement supervisory test of pressure pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54106796A true JPS54106796A (en) | 1979-08-22 |
Family
ID=11834409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1348578A Pending JPS54106796A (en) | 1978-02-10 | 1978-02-10 | Hydrogen embrittlement supervisory test of pressure pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54106796A (en) |
-
1978
- 1978-02-10 JP JP1348578A patent/JPS54106796A/en active Pending
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