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Norm
ÖNORM EN ISO 7539-2
Issue date: 1995 08 01
Corrosion of metals and alloys - Stress corrosion testing - Part 2: Preparation and use of bent-beam specimens (ISO 7539-2:1989)
1 .l This part of ISO 7539 covers procedures for designing,
preparing and using bent-beam test specimens for investigating
the susceptibility of a metal to stress corro...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 14 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
1 .l This part of ISO 7539 covers procedures for designing,
preparing and using bent-beam test specimens for investigating
the susceptibility of a metal to stress corrosion.
The term metal as used in this part of ISO 7539 includes
alloys.
1.2 Bent-beam specimens may be used to test a variety of
product forms. They are used principally for sheet, plate or flat
extruded material, which conveniently provides flat specimens
of rectangular Cross-section, but may also be employed for cast
material, wire or rod, or for machined specimens of circular
Cross-section. They tan also be used for Parts joined by
welding.
1.3 Since the preparation of the specimens and the
apparatus used for stressing them are both simple and inexpensive,
bent-beam specimens are especially suitable for
multiple testing and for atmospheric stress corrosion tests.
1.4 Bent-beam specimens are usually tested under nominally
constant strain conditions but nominally constant load conditions
may be employed. In either case local Change of
curvature in the specimen when cracking occurs results in
changing conditions during Crack propagation. The ¿test
stress¿ is taken as the highest surface tensile stress existing at
the statt of the test.
Norm
Issue date :
1987 08 20
Corrosion of metals and alloys — Stress corrosion testing — Part 1: General guidance on testing procedures
Norm
Issue date :
1989 12 07
Corrosion of metals and alloys — Stress corrosion testing — Part 4: Preparation and use of uniaxially loaded tension specimens
Norm
Issue date :
1989 12 07
Corrosion of metals and alloys — Stress corrosion testing — Part 2: Preparation and use of bent-beam specimens