EN 16602-70-37:2014
(Main)Space product assurance - Determination of the susceptibility of metals to stress-corrosion cracking
Space product assurance - Determination of the susceptibility of metals to stress-corrosion cracking
This document defines the requirements for the evaluation of the susceptibility of the SCC resistance.
It defines the preferred way to determine the susceptibility of metals and weldments to stress-corrosion cracking by alternate immersion
in 3.5 % sodium chloride under constant load.
The results obtained from test programmes made according to this specification are used to classify alloys, weldments and their individual heat treatment conditions. When sufficient stress-corrosion data exists, the alloy designations can be submitted for inclusion into the
various tables contained in ECSS-Q-ST-70-36.
In this document, the supplier is identified as the entity that performs the test.
This standard may be tailored for the specific characteristics and constrains of a space project in conformance with ECSS-S-ST-00.
Raumfahrtproduktsicherung - Bestimmung der Anfälligkeit von Metallen für Spannungsrisskorrosion
Assurance produit des projets spatiaux - Détermination de la susceptibilité des métaux à la fissuration par corrosion sous contrainte
La présente norme définit les exigences relatives aux essais mécaniques effectués sur les matériaux métalliques utilisés lors de la fabrication du matériel spatial.
La présente norme fixe les exigences relatives aux méthodes d'essai les plus pertinentes utilisées pour évaluer les propriétés de traction, de fatigue et de rupture des matériaux métalliques. Elle ne passe pas en revue toutes les méthodes d'essai utilisées pour évaluer les propriétés mécaniques de ces matériaux.
En outre, la présente norme définit les exigences relatives à l'évaluation, à la présentation et à la communication des résultats des essais.
La présente norme peut être adaptée aux caractéristiques et contraintes spécifiques d'un projet spatial, conformément à l'ECSS-S-ST-00.
Zagotavljanje varnih proizvodov v vesoljski tehniki - Ugotavljanje občutljivosti kovin za stresne korozijske razpoke
Ta dokument določa zahteve za oceno občutljivosti odpornosti na stresne korozijske razpoke. Določa prednostni način za ugotavljanje občutljivosti kovin in zvarov za stresne korozijske razpoke z izmeničnim potapljanjem v 3,5-odstotno raztopino natrijevega klorida pod trajno obremenitvijo. Rezultati, pridobljeni na podlagi preskusnih programov, izvedenih v skladu s to specifikacijo, se uporabljajo za razvrščanje zlitin, zvarov in njihovih posameznih pogojev toplotne obdelave. Ko obstajajo zadostni podatki v zvezi s stresno korozijo, je mogoče oznake zlitin predložiti za vključitev v različne preglednice iz standarda ECSS-Q-ST-70-36. V tem dokumentu je dobavitelj opredeljen kot subjekt, ki izvede preskus. Ta standard se lahko prilagodi posameznim lastnostim in omejitvam vesoljskega projekta v skladu s standardom ECSS-S-ST-00.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2015
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NRYLQ]DVWUHVQHNRUR]LMVNHUD]SRNH
Space product assurance - Determination of the susceptibility of metals to stress-
corrosion cracking
Raumfahrtproduktsicherung - Bestimmung der Anfälligkeit von Metallen für
Spannungsrisskorrosion
Assurance produit des projets spatiaux - Détermination de la susceptibilité des métaux à
la fissuration par corrosion sous contrainte
Ta slovenski standard je istoveten z: EN 16602-70-37:2014
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 16602-70-37
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 49.025.01; 49.140
English version
Space product assurance - Determination of the susceptibility of
metals to stress-corrosion cracking
Assurance produit des projets spatiaux - Détermination de Raumfahrtproduktsicherung - Bestimmung der Anfälligkeit
la susceptibilité des métaux à la fissuration par corrosion von Metallen für Spannungsrisskorrosion
sous contrainte
This European Standard was approved by CEN on 25 October 2014.
CEN and CENELEC 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 and CENELEC
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 and CENELEC member into its own language and notified to the CEN-CENELEC Management Centre
has the same status as the official versions.
CEN and CENELEC members are the national standards bodies and national electrotechnical committees 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.
CEN-CENELEC Management Centre:
Avenue Marnix 17, B-1000 Brussels
© 2014 CEN/CENELEC All rights of exploitation in any form and by any means reserved Ref. No. EN 16602-70-37:2014 E
worldwide for CEN national Members and for CENELEC
Members.
Table of contents
Foreword . 5
1 Scope . 6
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 9
3.1 Terms defined in other standards . 9
3.2 Terms specific to the present standard . 9
3.3 Abbreviated terms. 10
3.4 Symbols . 11
4 Principles . 12
4.1 Overview . 12
4.2 Tensile test . 12
4.3 Fracture toughness test . 12
4.3.1 Overview . 12
4.3.2 Determination of fracture toughness using the K test method . 12
Ic
4.3.3 Determination of fracture toughness using the J test method . 13
Ic
4.3.4 Characterization of fracture toughness using the R-curve test method . 13
4.3.5 Characterization of fracture toughness using the CTOD test method . 13
4.4 Fatigue test . 14
4.4.1 General . 14
4.4.2 Force controlled constant amplitude axial fatigue test . 14
4.4.3 Strain-controlled fatigue test . 14
4.5 Fatigue crack propagation test . 14
4.5.1 Stable crack growth rate. 14
4.5.2 Crack propagation threshold . 15
4.6 Fracture and fatigue test in special environment . 15
4.7 Stress corrosion cracking test . 15
4.7.1 Overview . 15
4.7.2 Stress corrosion cracking test using smooth specimens . 15
4.7.3 Stress corrosion cracking test using pre-cracked specimens . 16
4.8 Creep test . 16
4.9 Test results presentation. 16
5 Requirements . 17
5.1 Customer agreement . 17
5.2 Tensile testing . 17
5.2.1 General . 17
5.2.2 Tensile testing of weldments . 17
5.3 Fracture toughness test . 18
5.3.1 K test method . 18
Ic
5.3.2 J test method . 18
Ic
5.3.3 R-curve test method . 18
5.3.4 CTOD test method . 18
5.4 Fatigue test . 19
5.4.1 Force controlled constant amplitude axial fatigue test . 19
5.4.2 Strain-controlled fatigue test . 19
5.5 Fatigue crack propagation test . 20
5.5.1 Determination of fatigue crack growth rate . 20
5.5.2 Determination of a fatigue crack propagation threshold . 20
5.6 Fracture and fatigue tests in special environments . 21
5.7 Stress corrosion cracking test . 21
5.7.1 Stress corrosion cracking test using smooth specimens . 21
5.7.2 Stress corrosion cracking test using pre-cracked specimens . 21
5.8 Creep test . 21
5.9 Evaluation of test results . 21
5.10 Storage . 22
5.11 Reporting . 22
5.12 Quality assurance . 22
5.12.1 General . 22
5.12.2 Calibration . 22
5.12.3 Quality control of raw materials . 23
5.12.4 Nonconformance . 23
5.12.5 Traceability and records . 23
Annex A (normative) Request for mechanical testing of materials – DRD . 24
Annex B (normative) Proposal for mechanical testing of materials – DRD . 26
Annex C (normative) Report of mechanical testing of materials – DRD . 28
Annex D (informative) References . 31
Bibliography . 32
Foreword
This document (EN 16602-70-37:2014) has been prepared by Technical
Committee CEN/CLC/TC 5 “Space”, the secretariat of which is held by DIN.
This standard (EN 16602-70-37:2014) originates from ECSS-Q-ST-70-45C.
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 April 2015,
and conflicting national standards shall be withdrawn at the latest by April
2015.
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 has been prepared under a mandate given to CEN by the
European Commission and the European Free Trade Association
According to the CEN-CENELEC Internal Regulations, the national standards
organizations 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.
Scope
This Standard specifies requirements for mechanical testing of metallic
materials to be used in the fabrication of spacecraft hardware.
This Standard establishes the requirements for most relevant test methods
carried out to assess the tensile, fatigue and fracture properties of metallic
materials. It does not give a complete review of all the existing test methods for
the evaluation of mechanical properties of metallic materials.
Furthermore, this Standard specifies requirements for the evaluation,
presentation and reporting of test results.
This standard may be tailored for the specific characteristic and constrains of a
space project in conformance with ECSS-S-ST-00.
Normative references
The following normative documents contain provisions which, through
reference in this text, constitute provisions of this ECSS Standard. For dated
references, subsequent amendments to, or revision of any of these publications
do not apply, However, parties to agreements based on this ECSS Standard are
encouraged to investigate the possibility of applying the more recent editions of
the normative documents indicated below. For undated references, the latest
edition of the publication referred to applies.
EN reference Reference in text Title
EN 16601-00-01 ECSS-S-ST-00-01 ECSS system — Glossary of terms
EN 16602-10-09 ECSS-Q-ST-10-09 Space product assurance — Nonconformance control
system
EN 16602-70 ECSS-Q-ST-70 Space product assurance — Materials, mechanical
parts and processes
EN 16602-70-37 ECSS-Q-ST-70-37 Space product assurance — Determination of the
susceptibility of metals to stress-corrosion cracking
EN 16602-70-46 ECSS-Q-ST-70-46 Space product assurance — Requirements for
manufacturing and procurement of threaded fasteners
ASTM E 139 Standard test methods for conducting creep, creep-
rupture, and stress-rupture tests of metallic materials
ASTM E 399 Standard test method for plane-strain fracture
toughness of metallic materials
ASTM E 466 Standard practice for conducing force controlled
constant amplitude axial fatigue tests of metallic
materials
ASTM E 561 Standard practice for R-curve determination
ASTM E 606 Standard practice for strain-controlled fatigue testing
ASTM E 647 Standard test method for measurement of fatigue
crack growth rates
ASTM E 739 Standard practice for statistical analysis of linear or
linarized stress-life (S-N) and strain-life (e-N) fatigue
d
...
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