BS ISO 17248:2015
$142.49
Corrosion of metals and alloys. Test method for high temperature corrosion testing of metallic materials by embedding in salt, ash, or other solids
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 26 |
This International Standard specifies the method for high temperature corrosion testing of metallic materials by embedding in a corrosive powder made up of salt, ash, and/or other solids and exposing them to high temperature in a controlled gas environment to evaluate their corrosion resistance.
Two options exist: fully embedding and partially embedding.
Fully embedding is used in cases in which a mass change measurement is required.
Partially embedding is used to investigate three potentially different interaction zones on a single test piece, i.e. the embedded part, the non-embedded part, and the gas/powder interface region. Therefore, gravimetric measurements are not appropriate and metallographic investigations are necessary instead.
This International Standard does not cover methods where test pieces are immersed in a liquid or cases in which a surface deposit is applied to the test pieces. These methods are covered in ISO 17245 and ISO 17224, respectively.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions 4 Test method 4.1 Principle 4.2 Reagents and materials 4.2.1 Test pieces |
| 11 | 4.2.2 Corrosive powder 4.3 Test apparatus 4.3.1 Design of apparatus |
| 12 | 4.3.2 Temperature monitoring |
| 13 | 4.3.3 Gas supply 4.4 Procedure 4.4.1 Preparation and placement of the test piece |
| 14 | 4.4.2 Test environment 4.4.3 Heating method 4.4.4 Test duration |
| 15 | 4.4.5 Cooling of test pieces 4.4.6 Discontinuous testing 4.5 Determination of mass change 4.5.1 Principle 4.5.2 Measurements prior to testing 4.5.3 Descaling prior to mass determination |
| 16 | 4.5.4 Measurement of corrosion mass loss 5 Examination of surface and microstructure of corroded test pieces 6 Report 6.1 Matters to be described 6.1.1 Test material |
| 17 | 6.1.2 Test piece 6.1.3 Testing environments 6.1.4 Test results |
| 18 | 6.2 Supplementary note |
| 19 | Annex A (informative) Chemical and electrolytic procedures for removal of corrosion products from fully embedded test pieces |
| 22 | Bibliography |
