EN ISO 7539-1:2012
(Main)Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on testing procedures (ISO 7539-1:2012)
Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on testing procedures (ISO 7539-1:2012)
ISO 7539-1:2012 describes the general considerations that apply when designing and conducting tests to assess susceptibility of metals to stress corrosion.
ISO 7539-1:2012 also gives some general guidance on the selection of test methods.
Korrosion der Metalle und Legierungen - Prüfung der Spannungsrisskorrosion - Teil 1: Allgemeiner Leitfaden für Prüfverfahren (ISO/FDIS 7539-1:2012)
1.1 Dieser Teil von ISO 7539 beschreibt die allgemeinen Betrachtungen, die für die Planung und Durchführung von Prüfungen zur Beurteilung der Anfälligkeit von Metallen gegenüber Spannungsrisskorrosion gelten.
1.2 Dieser Teil von ISO 7539 gibt zusätzlich einen allgemeinen Leitfaden für die Auswahl von Prüfverfahren.
ANMERKUNG 1 Die einzelnen Prüfverfahren sind im Detail nicht in diesem Teil von ISO 7539 behandelt. Diese sind Gegenstand der weiteren Teile von ISO 7539.
ANMERKUNG 2 Dieser Teil von ISO 7539 ist unter den Bedingungen des kathodischen Schutzes anwendbar.
Corrosion des métaux et alliages - Essais de corrosion sous contrainte - Partie 1: Lignes directrices générales relatives aux méthodes d'essai (ISO 7539-1:2012)
L'ISO 7539-1:2012 décrit les considérations générales qui s'appliquent à la mise au point et à la réalisation des essais servant à évaluer la sensibilité des métaux à la corrosion sous contrainte.
L'ISO 7539-1:2012 donne également des directives générales sur la sélection des méthodes d'essais.
Korozija kovin in zlitin - Ugotavljanje pokanja zaradi napetostne korozije - 1. del: Splošna navodila za postopke preskušanja (ISO 7539-1:2012)
Ta del standarda ISO 7539 opisuje splošne pogoje, ki veljajo pri projektiranju in izvajanju preskusov za ocenjevanje dovzetnosti kovin za korozijo. Ta del standarda ISO 7539 podaja tudi splošna navodila za izbiro metod preskušanja.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2014
1DGRPHãþD
SIST EN ISO 7539-1:1999
Korozija kovin in zlitin - Ugotavljanje pokanja zaradi napetostne korozije - 1. del:
Splošna navodila za postopke preskušanja (ISO 7539-1:2012)
Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on
testing procedures (ISO 7539-1:2012)
Korrosion der Metalle und Legierungen - Prüfung der Spannungsrisskorrosion - Teil 1:
Allgemeiner Leitfaden für Prüfverfahren (ISO 7539-1:2012)
Corrosion des métaux et alliages - Essais de corrosion sous contrainte - Partie 1: Lignes
directrices générales relatives aux méthodes d'essai (ISO 7539-1:2012)
Ta slovenski standard je istoveten z: EN ISO 7539-1:2012
ICS:
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 7539-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2012
ICS 77.060 Supersedes EN ISO 7539-1:1995
English Version
Corrosion of metals and alloys - Stress corrosion testing - Part
1: General guidance on testing procedures (ISO 7539-1:2012)
Corrosion des métaux et alliages - Essais de corrosion Korrosion der Metalle und Legierungen - Prüfung der
sous contrainte - Partie 1: Lignes directrices générales Spannungsrisskorrosion - Teil 1: Allgemeiner Leitfaden für
relatives aux méthodes d'essai (ISO 7539-1:2012) Prüfverfahren (ISO/FDIS 7539-1:2012)
This European Standard was approved by CEN on 18 December 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7539-1:2012: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 7539-1:2012) has been prepared by Technical Committee ISO/TC 156 "Corrosion of
metals and alloys" in collaboration with Technical Committee CEN/TC 262 “Metallic and other inorganic
coatings” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 7539-1:1995.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 7539-1:2012 has been approved by CEN as a EN ISO 7539-1:2012 without any modification.
INTERNATIONAL ISO
STANDARD 7539-1
Second edition
2012-12-15
Corrosion of metals and alloys —
Stress corrosion testing —
Part 1:
General guidance on testing procedures
Corrosion des métaux et alliages — Essais de corrosion sous
contrainte —
Partie 1: Lignes directrices générales relatives aux méthodes d’essai
Reference number
ISO 7539-1:2012(E)
©
ISO 2012
ISO 7539-1:2012(E)
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the
address below or ISO’s member body in the country of the requester.
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ii © ISO 2012 – All rights reserved
ISO 7539-1:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Terms and definitions . 1
3 Background . 2
4 Selection of test method . 3
5 Stressing systems . 4
5.1 General . 4
5.2 Constant total strain tests . 4
5.3 Constant load tests . 5
5.4 Slow strain rate tests . 6
6 Environmental aspects . 7
6.1 General . 7
6.2 Temperature . 7
6.3 Water chemistry . 7
6.4 Flow rate . 9
6.5 Electrochemical aspects . 9
7 Time dependent issues .10
7.1 General .10
7.2 Pitting and intergranular corrosion .10
7.3 Hydrogen uptake .10
8 Specimen design and manufacture .11
8.1 General .11
8.2 Surface condition .11
8.3 Area effects .13
8.4 Pre-cracked test pieces .13
8.5 Welds .14
9 Stress corrosion test cells .14
10 Initiation of stress corrosion tests .15
11 Assessment and treatment of results .15
Annex A (informative) Guide to selection of mechanical test method .18
Bibliography .20
ISO 7539-1:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 7539-1 was prepared by Technical Committee ISO/TC 156, Corrosion of metals and alloys.
This second edition cancels and replaces the first edition (ISO 7539-1:1987), which has been
technically revised.
ISO 7539 consists of the following parts, under the general title Corrosion of metals and alloys — Stress
corrosion testing:
— Part 1: General guidance on testing procedures
— Part 2: Preparation and use of bent-beam specimens
— Part 3: Preparation and use of U-bend specimens
— Part 4: Preparation and use of uniaxially loaded tension specimens
— Part 5: Preparation and use of C-ring specimens
— Part 6: Preparation and use of pre-cracked specimens for tests under constant load or constant displacement
— Part 7: Method for slow strain rate testing
— Part 8: Preparation and use of specimens to evaluate weldments
— Part 9: Preparation and use of pre-cracked specimens for tests under rising load or rising displacement
— Part 10: Reverse U-bend method
—
...
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