EN ISO 7539-9:2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Corrosion of metals and alloys - Stress corrosion testing - Part 9: Preparation and use of pre-cracked specimens for tests under rising load or rising displacement (ISO 7539-9:2003)
11-09-2021
16-04-2008
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Specimens
6 Initiation and propagation of fatigue cracks
7 Procedure
8 Test report
Annex A (informative) - Determination of a suitable
displacement rate for determining
K[ISCC] from constant displacement
rate tests
Annex B (informative) - Determination of crack growth velocity
Annex C (informative) - Information on indirect methods for
measuring crack length
ISO 7539-9:2003 covers procedures for designing, preparing and using pre-cracked specimens for investigating the susceptibility of metal to stress corrosion cracking by means of tests conducted under rising load or rising displacement. The term "metal" includes alloys.Because of the need to confine plasticity to the crack tip, pre-cracked specimens are not suitable for the evaluation of thin products such as sheet or wire and are generally used for thicker products including plate, bar and forgings. They can also be used for parts joined by welding.A particular advantage of pre-cracked specimens is that they allow data to be acquired from which critical defect sizes, above which stress corrosion cracking may occur, can be estimated for components of known geometry subjected to known stresses. They also enable rates of stress corrosion crack propagation to be determined.A principal advantage of the test is that it takes into account the potential impact of dynamic straining on the threshold for stress corrosion cracking.
Committee |
CEN/TC 262
|
DocumentType |
Standard
|
PublisherName |
Comite Europeen de Normalisation
|
Status |
Superseded
|
SupersededBy |
Standards | Relationship |
UNE-EN ISO 7539-9:2009 | Identical |
NS EN ISO 7539-9 : 1ED 2008 | Identical |
NS-EN ISO 7539-9:2021 | Identical |
BS EN ISO 7539-9:2008 | Identical |
PN EN ISO 7539-9 : 2008 | Identical |
DIN EN ISO 7539-9:2008-08 | Identical |
NEN EN ISO 7539-9 : 2008 | Identical |
SN EN ISO 7539-9 : 2008 | Identical |
UNI EN ISO 7539-9 : 2008 | Identical |
I.S. EN ISO 7539-9:2008 | Identical |
ISO 7539-9:2003 | Identical |
NBN EN ISO 7539-9 : 2008 | Identical |
NF EN ISO 7539-9 : 2008 | Identical |
ONORM EN ISO 7539-9 : 2008 | Identical |
ISO 7539-6:2011 | Corrosion of metals and alloys Stress corrosion testing Part 6: Preparation and use of precracked specimens for tests under constant load or constant displacement |
ISO 7539-7:2005 | Corrosion of metals and alloys — Stress corrosion testing — Part 7: Method for slow strain rate testing |
ISO 7539-1:2012 | Corrosion of metals and alloys — Stress corrosion testing — Part 1: General guidance on testing procedures |
ISO 11782-2:1998 | Corrosion of metals and alloys Corrosion fatigue testing Part 2: Crack propagation testing using precracked specimens |
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