1、Juni 2015DEUTSCHE NORM DIN-Normenausschuss Luft- und Raumfahrt (NL)Preisgruppe 17DIN Deutsches Institut fr Normung e. V. Jede Art der Vervielfltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches Institut fr Normung e. V., Berlin, gestattet.ICS 49.140; 49.025.01!%B-=“2311026www.din.deDDI
2、N EN 16602-70-36Raumfahrtproduktsicherung Kriterien fr die Werkstoffwahl zur Vermeidung vonSpannungsrisskorrosion;Englische Fassung EN 16602-70-36:2014Space product assurance Material selection for controlling stress-corrosion cracking;English version EN 16602-70-36:2014Assurance produit des projets
3、 spatiaux Slection des matriaux en vue dviter leur fissuration par corrosion sous contrainte;Version anglaise EN 16602-70-36:2014Alleinverkauf der Normen durch Beuth Verlag GmbH, 10772 BerlinErsatz frDIN EN 14101:2002-10www.beuth.deGesamtumfang 43 SeitenDIN EN 16602-70-36:2015-06 2 Nationales Vorwor
4、t Dieses Dokument (EN 16602-70-36:2014) wurde vom Technischen Komitee CEN/CLC/TC 5 Raumfahrt“ erarbeitet, dessen Sekretariat vom DIN (Deutschland) gehalten wird. Das zustndige deutsche Normungsgremium ist der Arbeitsausschuss NA 131-10-01 AA Interoperabilitt von Informations-, Kommunikations- und Na
5、vigationssystemen“ im DIN-Normenausschuss Luft- und Raumfahrt (NL). Dieses Dokument ersetzt DIN EN 14101:2002-10. Dieses Dokument (EN 16602-70-36:2014) basiert auf ECSS-Q-ST-70-36C. Dieses Dokument enthlt unter Bercksichtigung des DIN-Prsidialbeschlusses 1/2004 nur die englische Originalfassung von
6、EN 16602-70-36:2014. Dieses Dokument wurde speziell zur Behandlung von Raumfahrtsystemen erarbeitet und hat daher Vorrang vor jeglicher Europischer Norm, da es denselben Anwendungsbereich hat, jedoch ber einen greren Geltungsbereich (z. B. Luft- und Raumfahrt) verfgt. nderungen Gegenber DIN EN 14101
7、:2002-10 wurden folgende nderungen vorgenommen: a) Norm-Nummer gendert; b) keinerlei nderungen des Textes. Frhere Ausgaben DIN EN 14101: 2002-10 DIN EN 16602-70-36:2015-06 3 Nationaler Anhang NA (informativ) Begriffe und Abkrzungen 3 Begriffe und Abkrzungen 3.1 Begriffe aus anderen Normen Fr die Anw
8、endung dieses Dokuments gelten die Begriffe nach ECSS-S-ST-00-01 und ECSS-Q-ST-70. 3.2 Fr diese Norm spezifische Begriffe 3.2.1 Spannungskorrosion kombinierte Wirkung aus anhaltender Zugspannung und Korrosion, die zu einem vorzeitigen Versagen der Werkstoffe fhren kann 3.3 Abkrzungen Fr die Anwendun
9、g dieses Dokuments gelten die Abkrzungen in ECSS-S-ST-00-01 und die folgenden Abkrzungen: Abkrzung Bedeutung SCC Spannungsrisskorrosion (en: stress-corrosion cracking) SCEF Bewertungsformular fr Spannungskorrosion (en: stress-corrosion evaluation form) DIN EN 16602-70-36:2015-06 4 Leerseite EUROPEAN
10、 STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16602-70-36 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 - Slection des matriaux en vue dviter leu
11、r fissuration par corrosion sous contrainte Raumfahrtproduktsicherung - Kriterien fr die Werkstoffwahl zur Vermeidung von 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 st
12、ipulate 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.
13、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 ver
14、sions. 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, Latvi
15、a, 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 reserv
16、ed worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 16602-70-36:2014 E EN 16602-70-36:2014 (E) 2 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
17、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 Material
18、s 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 Customers approval . 13 Annex A (normative) Request for SCC resistance evaluati
19、on - 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 DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 3 A.2.2 Special remarks 23 Annex B (normative) SCC resistance te
20、st 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 evaluatio
21、n 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
22、 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 Bibli
23、ography . 39 Figures Figure C-1 : Example of a Stress-corrosion evaluation form . 29 Figure D-1 : Grain orientations in standard wrought forms 32 DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 4 Figure D-2 : Examples of tensile stresses in short transverse direction applied during assembly 33 Fi
24、gure 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 t
25、o stress-corrosion cracking 18 Table 5-3: Alloys with low resistance to stress-corrosion cracking 20 Table F-1 : Sources of stress 38 DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 5 Foreword This document (EN 16602-70-36:2014) has been prepared by Technical Committee CEN/CLC/TC 5 “Space”, the s
26、ecretariat 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 stand
27、ards 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
28、: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 app
29、licability (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 Rep
30、ublic 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. DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 6 1 S
31、cope 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 cor
32、rosion 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 s
33、tress-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
34、 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
35、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. DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 7 2 Normative references The following normative do
36、cuments 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 investiga
37、te 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 16602-70 ECSS-
38、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. NASA-MSFC-SPEC 522B (July 1987) Design criteria for controlling stress-corrosion cracking
39、DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 8 3 Terms, definitions and abbreviated terms 3.1 Terms from other standards For the purpose of this Standard, the terms and definitions from ECSS-ST-00-01 and ECSS-Q-ST-70 apply. 3.2 Terms specific to the present standard 3.2.1 stress-corrosion comb
40、ined action of sustained tensile stress and corrosion that can lead to the premature failure of materials 3.3 Abbreviated terms For the purpose of this Standard, the abbreviated terms from ECSS-S-ST-00-01 and the following apply: Abbreviation Meaning SCC stress-corrosion cracking SCEF stress-corrosi
41、on evaluation form DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 9 4 Principles 4.1 Stress corrosion Certain materials are more susceptible to stress corrosion cracking (SCC) than others. If a susceptible material is placed in service in a corrosive environment under tension of sufficient magni
42、tude, and the duration of service is sufficient to permit the initiation and growth of cracks, failure occurs at a stress lower than that which the material is normally be expected to withstand. The corrosive environment need not be severe in terms of general corrosive attack. NOTE Service failures
43、due to stress-corrosion are frequently encountered in cases where the surfaces of the failed parts are not visibly corroded in a general sense. Moreover, stresses are additive and threshold stresses for susceptibility are often low. There have been a number of stress-corrosion failures for which des
44、ign stresses were intermittent and of short duration, and only of minor significance in contributing to failure. Stress-corrosion cracking in those cases occurred because of a combination of residual and assembly stresses not anticipated in design. 4.2 Evaluation of metal alloys Resistance to stress
45、- corrosion cracking of metal alloys depends mainly on factors: Grain orientation (see Annex D) Susceptibility to SCC (see Annex E) DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 10 5 Requirements 5.1 Stress corrosion cracking resistance evaluation of metal alloys 5.1.1 Overview Clause 5.1.2 lis
46、ts the requirements applicable for applications involving and identified as case 1: unlisted materials (i.e. materials not listed in tables 1, 2 or 3), or combinations of materials and environments outside the scope of this Standard Clause 5.1.3 lists the requirements applicable for application invo
47、lving listed materials with moderate SCC resistance, low SCC resistance, or moderate or low SCC resistance and coated or plated with materials with a high SCC resistance. and identified as case 2. NOTE The classes for high, moderated and low resistance to SCC are defined in ECSS-Q-ST-70-37. 5.1.2 Re
48、quirements for case 1 a. A request for evaluation shall be established in conformance with the DRD in Annex A. b. As a reply to the customer request for SCC evaluation, the supplier shall provide a work proposal (including test specifications and procedures) in conformance with the DRD in Annex B. N
49、OTE An example of approved test specifications and procedures is ECSS-Q-ST-70-37. c. The supplier shall perform a detailed evaluation of susceptibility according to test specifications and procedures approved by the customer DIN EN 16602-70-36:2015-06 EN 16602-70-36:2014 (E) 11 NOTE This is often the case for many applications involving unfamiliar materials, or unusual combinations of materials and environments. d. The results of stress corrosion cracking resistance evaluation shall be reported in conformance wi
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