EN 16602-70-36:2014
(Main)Space product assurance - Material selection for controlling stress-corrosion cracking
Space product assurance - Material selection for controlling stress-corrosion cracking
This Standard covers the following processes of the general materials, mechanicals parts and processes (MMPP) flow of ECSS-Q-ST-70:
• The selection of metal alloys for which preference is given to approved data sources (Table 5 1 to Table 5 3)
• The criticality analysis to determine if a stress corrosion cracking (SCC) evaluation is necessary
This Standard sets forth the criteria to be used in the selection of materials for spacecraft and associated equipment and facilities so that failure resulting from stress-corrosion is prevented.
It is intended to provide general criteria to be used in stress-corrosion cracking control, which begins during design thanks to a methodological material selection.
This document does not intend to include all factors and criteria necessary for the total control of stresscorrosion cracking in all alloys.
The criteria established in this Standard are only applicable to designs for service involving exposure conditions similar to testing conditions
As regards weldments, this Standard is applicable to aluminium alloys, selected stainless steels in the 300 series and alloys listed in Table 5 1.
This Standard is not applicable to listed materials whose behaviour differs at elevated temperature and in specific chemical.
This standard may be tailored for the specific characteristic and constrains of a space project in conformance with ECSS-S-ST-00.
Raumfahrtproduktsicherung - Kriterien für die Werkstoffwahl zur Vermeidung von Spannungsrisskorrosion
Assurance produit des projets spatiaux - Sélection des matériaux en vue d'éviter leur fissuration par corrosion sous contrainte
La présente norme couvre les processus suivants des flux généraux de matériaux, composants mécaniques et procédés (MMPP) de l'ECSS-Q-ST-70 :
la sélection des alliages métalliques pour lesquels la préférence est donnée à des sources de données approuvées (Tableau 5-1 à Tableau 5-3) ;
l'analyse de criticité permettant de déterminer si une évaluation de la fissuration par corrosion sous contrainte (SCC) est nécessaire.
La présente norme détaille les critères à utiliser pour sélectionner les matériaux destinés aux engins spatiaux et aux équipements et installations associés de sorte à éviter toute défaillance due à la corrosion sous contrainte.
Elle vise à fournir les critères généraux à utiliser pour contrôler la fissuration par corrosion sous contrainte, en commençant dès le stade de la conception grâce à une sélection méthodique des matériaux.
Le présent document n'a pas pour but de donner de façon exhaustive tous les facteurs et critères nécessaires pour éviter la fissuration par corrosion sous contrainte chez tous les alliages.
Les critères définis dans la présente norme ne s'appliquent qu'aux conceptions d’équipements destinés à fonctionner dans des conditions d’exposition similaires à celles des conditions d'essai.
En ce qui concerne les ensembles soudés, la présente norme s'applique aux alliages d’aluminium, aux aciers inoxydables choisis dans la série 300 et aux alliages répertoriés dans le Tableau 5-1.
Zagotavljanje varnih proizvodov v vesoljski tehniki - Merila za izbiro materialov za izogibanje stresnim korozijskim razpokam
Ta standard obravnava naslednje procese splošne sheme materialov, mehanskih delov in procesov (MMPP) iz standarda ECSS-Q-ST-70: • izbiro kovinskih zlitin, kjer imajo prednost odobreni podatkovni viri (preglednica 5.1 do 5.3), • potrebna je analiza kritičnosti za ugotavljanje, ali je potrebna ocena stresnega korozijskega pokanja (SCC). Ta standard določa merila, ki se uporabljajo pri izbiri materialov za vesoljska plovila in povezano opremo ter obrate, da se preprečijo odpovedi zaradi stresne korozije. Namenjen je zagotavljanju splošnih meril, ki se uporabljajo pri izogibanju stresnim korozijskim razpokam, ki se začne med projektiranjem po zaslugi metodološke izbire materialov. Ta dokument ne namerava zajeti vseh dejavnikov in meril, potrebnih za popolno izogibanje stresnim korozijskim razpokam v vseh zlitinah. Merila, določena v tem standardu, se uporabljajo samo za zasnove za uporabo, ki vključuje pogoje izpostavljenosti, podobne preskusnim pogojem. Kar zadeva zvare, se ta standard uporablja za aluminijeve zlitine, izbrana nerjavna jekla iz skupine 300 in zlitine, navedene v preglednici 5.1. Ta standard se ne uporablja za navedene materiale, katerih obnašanje se razlikuje pri povišani temperaturi in v posebni kemikaliji. Ta standard se lahko prilagodi posameznim lastnostim in omejitvam vesoljskega projekta v skladu s standardom ECSS-S-ST-00.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2015
1DGRPHãþD
SIST EN 14101:2004
Zagotavljanje varnih proizvodov v vesoljski tehniki - Merila za izbiro materialov za
izogibanje stresnim korozijskim razpokam
Space product assurance - Material selection for controlling stress-corrosion cracking
Raumfahrtproduktsicherung - Kriterien für die Werkstoffwahl zur Vermeidung von
Spannungsrisskorrosion
Assurance produit des projets spatiaux - Sélection des matériaux en vue d'éviter leur
fissuration par corrosion sous contrainte
Ta slovenski standard je istoveten z: EN 16602-70-36:2014
ICS:
49.025.01 Materiali za letalsko in Materials for aerospace
vesoljsko gradnjo na splošno construction in general
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 16602-70-36
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 49.025.01; 49.140 Supersedes EN 14101:2001
English version
Space product assurance - Material selection for controlling
stress-corrosion cracking
Assurance produit des projets spatiaux - Sélection des Raumfahrtproduktsicherung - Kriterien für die
matériaux en vue d'éviter leur fissuration par corrosion sous Werkstoffwahl zur Vermeidung von
contrainte Spannungsrisskorrosion
This European Standard was approved by CEN on 11 April 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 16602-70-36:2014 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 . 8
3.1 Terms from other standards . 8
3.2 Terms specific to the present standard . 8
3.3 Abbreviated terms. 8
4 Principles . 9
4.1 Stress corrosion . 9
4.2 Evaluation of metal alloys . 9
5 Requirements . 10
5.1 Stress corrosion cracking resistance evaluation of metal alloys . 10
5.1.1 Overview . 10
5.1.2 Requirements for case 1 . 10
5.1.3 Requirements for Case 2 . 11
5.2 Materials selection criteria . 11
5.2.1 General . 11
5.2.2 High SCC resistance alloys . 11
5.2.3 Moderate SCC resistance alloys . 12
5.2.4 Low SCC resistance alloys . 12
5.2.5 Unlisted materials . 13
5.3 Design and assembly . 13
5.4 Customer’s approval . 13
Annex A (normative) Request for SCC resistance evaluation - DRD . 23
A.1 DRD identification . 23
A.1.1 Requirement identification and source document . 23
A.1.2 Purpose and objective . 23
A.2 Expected response . 23
A.2.1 Scope and content . 23
A.2.2 Special remarks . 23
Annex B (normative) SCC resistance test specifications and procedures
(Work Proposal) - DRD . 24
B.1 DRD identification . 24
B.1.1 Requirement identification and source document . 24
B.1.2 Purpose and objective . 24
B.2 Expected response . 24
B.2.1 Scope and content . 24
B.2.2 Special remarks . 24
Annex C (normative) Stress-corrosion evaluation form (SCEF) - DRD . 25
C.1 DRD identification . 25
C.1.1 Requirement identification and source document . 25
C.1.2 Purpose and objective . 25
C.2 Expected response . 25
C.2.1 Scope and content . 25
C.2.2 Special remarks . 29
Annex D (informative) Grain orientation . 31
D.1 Introduction . 31
D.2 Anisotropy of grain orientation . 31
Annex E (informative) SCC resistance of alloys . 35
E.1 Stress corrosion susceptibility . 35
E.2 Metal alloys. 36
E.2.1 Aluminium . 36
E.2.2 Steel . 36
E.2.3 Nickel . 36
E.2.4 Copper . 36
Annex F (informative) Stress sources . 38
F.1 Introduction . 38
F.2 Stress sources . 38
Bibliography . 39
Figures
Figure C-1 : Example of a Stress-corrosion evaluation form . 29
Figure D-1 : Grain orientations in standard wrought forms . 32
Figure D-2 : Examples of tensile stresses in short transverse direction applied
during assembly . 33
Figure D-3 : Examples of tensile stresses in short transverse direction resulting
from assembly . 34
Figure E-1 : Typical residual stress distributions in 7075 Aluminium alloys . 37
Tables
Table 5-1: Alloys with high resistance to stress-corrosion cracking . 14
Table 5-2: Alloys with moderate resistance to stress-corrosion cracking . 18
Table 5-3: Alloys with low resistance to stress-corrosion cracking . 20
Table F-1 : Sources of stress. 38
Foreword
This document (EN 16602-70-36:2014) has been prepared by Technical
Committee CEN/CLC/TC 5 “Space”, the secretariat of which is held by DIN.
This standard (EN 16602-70-36:2014) originates from ECSS-Q-ST-70-36C.
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 supersedes EN 14101:2001.
This document has been prepared under a mandate given to CEN by the
European Commission and the European Free Trade Association.
This document has been developed to cover specifically space systems and has
therefore precedence over any EN covering the same scope but with a wider
domain of applicability (e.g. : aerospace).
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 covers the following processes of the general materials,
mechanicals parts and processes (MMPP) flow of ECSS-Q-ST-70:
• The selection of metal alloys for which preference is given to approved
data sources (Table 5-1 to Table 5-3)
• The criticality analysis to determine if a stress corrosion cracking (SCC)
evaluation is necessary
This Standard sets forth the criteria to be used in the selection of materials for
spacecraft and associated equipment and facilities so that failure resulting from
stress-corrosion is prevented.
It is intended to provide general criteria to be used in stress-corrosion cracking
control, which begins during design thanks to a methodological material
selection.
This document does not intend to include all factors and criteria necessary for
the total control of stress-corrosion cracking in all alloys.
The criteria established in this Standard are only applicable to designs for
service involving exposure conditions similar to testing conditions
As regards weldments, this Standard is applicable to aluminium alloys, selected
stainless steels in the 300 series and alloys listed in Table 5-1.
This Standard is not applicable to listed materials whose behaviour differs at
elevated temperature and in specific chemical.
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
ref
...
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