Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

EN ISO 7539-9:2008

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by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)

Superseded date

11-09-2021

Superseded by

EN ISO 7539-9:2021

Published date

16-04-2008

Sorry this product is not available in your region.

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Superseded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

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

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more