BS EN ISO 15324:2008
$102.76
Corrosion of metals and alloys. Evaluation of stress corrosion cracking by the drop evaporation test
| Published By | Publication Date | Number of Pages |
| BSI | 2008 | 14 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | Corrosion of metals and alloys�— Evaluation of stress corrosion cracking by the drop evaporation … 1��� Scope 1.1��� This International Standard 1.2��� The method results in a threshold stress to fracture, the magnitude of which can be used t… 2��� Normative references 3��� Terms and definitions 4��� Principle 4.1��� A dilute salt solution is dripped on to a heated tensile specimen of the material under te… 4.2��� Tests are carried out at different applied stresses and the time to specimen fracture is r… |
| 6 | 4.3��� The elevated temperatures, wetting and drying process and associated concentration of salt… 4.4��� Evaporation of salt solutions leading to salt concentration at elevated temperature is not… 5��� Apparatus 5.1��� System for applying a constant load to a specimen held in a horizontal configuration 5.2��� Equipment for applying an alternating or direct current of up to about thirty amperes curr… 5.3��� A reservoir |
| 7 | 5.4��� A suitable calibrated device for measuring the surface temperature of the specimen 5.5��� A device for detecting specimen fracture and recording the time to fracture 5.6��� Some degree of containment of the test system 6��� Test specimen 6.1��� The specimens shall be tensile specimens with a circular cross section in the gauge length. 6.2��� The specimens shall be prepared from thick sheet, plate, bar, strip or tube. 6.3��� The specimens shall be cut such that the longitudinal direction of the specimen is paralle… 6.4��� The specimen shall have a gauge length of 6.5��� The specimen shall be produced to a fine ground finish ( 6.6��� After surface finishing, surface contaminants shall be removed by an appropriate cleaning … 7��� Test solution |
| 8 | 8��� Procedure 8.1��� The specimen is attached to the gripping devices. 8.2��� The specimen is resistance heated until a steady temperature of 8.3��� The solution is dripped on to the specimen at a rate of 8.4��� The load is then applied. The load to be applied shall be a fraction of the load correspon… 8.5��� The specimen fracture detection system is activated. 8.6��� The applied current is increased by 8.7��� The temperature of the specimen shall be measured in the dry region at least once during t… 8.8��� The test is continued until the specimen fractures, up to a maximum of 8.9��� The fractured specimen shall be examined to confirm that the failure was due to stress cor… 8.10��� The test is repeated at other fractions of the yield strength until the minimum stress to… 9��� Test report |
| 10 | Drop rate control |
| 11 | Surface temperature measurement |
| 12 | Surface texture parameters — relevance to stress corrosion cracking |
| 13 | Bibliography |
