JPS5734439A - Production of artificial defect test piece - Google Patents
Production of artificial defect test pieceInfo
- Publication number
- JPS5734439A JPS5734439A JP10905380A JP10905380A JPS5734439A JP S5734439 A JPS5734439 A JP S5734439A JP 10905380 A JP10905380 A JP 10905380A JP 10905380 A JP10905380 A JP 10905380A JP S5734439 A JPS5734439 A JP S5734439A
- Authority
- JP
- Japan
- Prior art keywords
- coated layer
- test piece
- metal
- local pressure
- defect
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
Landscapes
- Physics & Mathematics (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 Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
PURPOSE:To enable the adjustment of the length and distribution of a defect in an artificial defect test piece by applying a local pressure from te back of a metal plate with a coated layer thereon to make a defect on the coated layer. CONSTITUTION:A metal coated layer 2 is formed on the surface of a metal substrate 1. Then, the metal substrate 1 is placed on a base 3 with the coated layer 2 facing the base and a local pressure is applied thereon from the back thereof to make an artificial defect on the surface of the metal coated layer. This local pressure can be given by pressing a steel ball, for example, a Brinell ball against the substrate. A defective crack of almost average length can be formed freely at the desired position on a test piece. The length or the like of the defective crack can be adjusted by controlling the components of the metal coated layer. In this case, it is preferable that the local pressure is applied on the test piece after it is placed on a metal plate 5 which is laid on a rubber plate 4 on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10905380A JPS5734439A (en) | 1980-08-08 | 1980-08-08 | Production of artificial defect test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10905380A JPS5734439A (en) | 1980-08-08 | 1980-08-08 | Production of artificial defect test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5734439A true JPS5734439A (en) | 1982-02-24 |
Family
ID=14500405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10905380A Pending JPS5734439A (en) | 1980-08-08 | 1980-08-08 | Production of artificial defect test piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5734439A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949277A (en) * | 2024-03-25 | 2024-04-30 | 中国航发四川燃气涡轮研究院 | Defect prefabrication structure and method for circumferential high-stress part of wheel disc |
-
1980
- 1980-08-08 JP JP10905380A patent/JPS5734439A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949277A (en) * | 2024-03-25 | 2024-04-30 | 中国航发四川燃气涡轮研究院 | Defect prefabrication structure and method for circumferential high-stress part of wheel disc |
| CN117949277B (en) * | 2024-03-25 | 2024-06-04 | 中国航发四川燃气涡轮研究院 | Defect prefabrication structure and method for circumferential high-stress part of wheel disc |
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