BS 6980-6(1990) : AMD 8734

Name: BS 6980-6(1990) : AMD 8734
Brand: BSI

Superseded

View Superseded by

STRESS CORROSION TESTING - METHOD FOR THE PREPARATION AND USE OF PRE-CRACKED SPECIMENS

Superseded date

15-08-1995

Published date

23-11-2012

Publisher

British Standards Institution

Committees responsible
National foreword
Method
1 Scope
2 Normative reference
3 Definitions
4 Principle
5 Specimens
6 Initiation and propagation of fatigue cracks
7 Procedure
8 Test report
Annex
A Use of notched specimens for stress corrosion tests
Figures
1 Pre-cracked specimen geometries for stress
     corrosion testing
2a) Proportional dimensions and tolerances for
     cantilever bend test pieces
2b) Proportional dimensions and tolerances for compact
     tension test pieces
2c) Proportional dimensions and tolerances for double
     cantilever beam test pieces
2d) Proportional dimensions and tolerances for T-type
     wedge opening loaded test pieces
2e) Proportional dimensions and tolerances for C-shaped
     test pieces
3 Chevron notch
4 Knife edges for location of displacement gauges
5a) Stress intensity factor solution for double
     cantilever beam specimen [(W - a) indifferent]
5b) Stress intensity factor solution for T-type wedge
     opening loaded specimen
5c) Stress intensity factor solution for cantilever
     bend specimen
5d) Stress intensity factor solution for compact
     tension specimens
5e) Stress intensity factor solution for C-shaped
     specimens
6 Fracture plane identification
7 Envelope limiting size and form of notch and
     fatigue crack
8 Position of environmental cells on fracture
     mechanism specimens
9 Measurement location and relation between V and Vy
     values
10 Comparison of "T-type" wedge opening loaded
     specimen compliance at central loadline
11 Schematic representation of stress-corrosion data
     produced by test method based on time to failure

This covers procedures for designing, preparing and using pre-cracked specimens for investigating susceptibility to stress corrosion. Recommendations concerning notched specimens are given. 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. Pre-cracked specimens may be stressed quantitatively with equipment for application of a constant load or a monotonically increasing load or can incorporate a device to produce a constant displacement at the loading points. BS AMD 8734 RENUMBERS THIS STANDARD TO BS EN ISO 7539/6

Committee	ISM/NFM/8
DevelopmentNote	Superseded and renumbered by BS EN ISO 7539-6 (07/2004)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN ISO 7539-6:2011

Standards	Relationship
ISO 7539-6:2011	Identical

BS 6980-5(1990) : 1990 AMD 1995	STRESS CORROSION TESTING - METHOD FOR THE PREPARATION AND USE OF C-RING SPECIMENS
BS 6980-7(1990) : AMD 8733	STRESS CORROSION TESTING - METHOD FOR SLOW STRAIN RATE TESTING
BS 6980-4(1990) : 1990 AMD 8713	STRESS CORROSION TESTING - METHOD FOR THE PREPARATION AND USE OF UNIAXIALLY LOADED TENSION SPECIMENS
BS EN ISO 7539-4:1995	Corrosion of metals and alloys. Stress corrosion testing Preparation and use of uniaxially loaded tension specimens
BS EN ISO 7539-5:1995	Corrosion of metals and alloys. Stress corrosion testing Method for the preparation and use of C-ring specimens

BS 6980-1(1988) : 1988 AMD 8715	STRESS CORROSION TESTING - GUIDE TO TESTING PROCEDURES
ISO 7539-1:2012	Corrosion of metals and alloys — Stress corrosion testing — Part 1: General guidance on testing procedures

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BS 6980-6(1990) : AMD 8734

STRESS CORROSION TESTING - METHOD FOR THE PREPARATION AND USE OF PRE-CRACKED SPECIMENS

Table of Contents

Abstract

General Product Information

International Equivalents

Standards Referenced By This Book

Standards Referencing This Book

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