1、BRITISH STANDARD AEROSPACE SERIES BS EN 2832:1993 Hydrogen embrittlement of steels Notched specimen test The European Standard EN2832:1993 has the status of a BritishStandard UDC 669.14:621:793/794:620.172:629.7BS EN2832:1993 This BritishStandard, having been prepared under the directionof the Aeros
2、pace Standards Policy Committee (ACE/-), was published under theauthority of the Standards Board and comes intoeffect on 15May1993 BSI12-1999 The following BSI references relate to the work on this standard: Committee reference ACE/44 Draft for comment90/75755 DC ISBN 0 580 22148 2 Cooperating organ
3、izations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following (CEN) countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk St
4、andardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente
5、Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i S
6、verige Switzerland Association suisse de normalisation United Kingdom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBS EN2832:1993 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN2832 3 Nation
7、al annex NA (informative) Committees responsible Inside back coverBS EN2832:1993 ii BSI 12-1999 National foreword This BritishStandard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2832:1993, Aerospace series Hydrogen embri
8、ttlement of steels Notched specimen test published by the European Committee for Standardization (CEN). EN2832 was produced as a result of international discussion in which the UnitedKingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contrac
9、t. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages2 to4, an
10、inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN2832 February1993 UDC 669.14:621.793/794:620.1
11、72:629.7 Descriptors: Aircraft industry, steels,hydrogen embrittlement, tests, test specimens English version Aerospace series Hydrogen embrittlement of steels Notched specimen test Srie arospatiale Fragilisation des aciers par lhydrogne Essai par prouvette entaille Luft- und Raumfahrt Wasserstoffve
12、rsprdung von Sthlen Kerbzugversuch This European Standard was approved by CEN on1993-02-19. 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
13、lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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 re
14、sponsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlan
15、ds, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN2832:1993 EEN 2832:
16、1993 BSI 12-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this standard has successively received the approval of the National Associatio
17、ns and the Official Services of the member countries of AECMA, prior to its presentation to CEN. 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 August1993, and conflicting national standards shal
18、l be withdrawn at the latest by August1993. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain
19、, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Apparatus 3 3 Test specimens 3 4 Procedure 3 5 Fault sanction 3 6 Test report 3 Figure 1 4 Table 1 4EN 2832:1993 BSI 12-1999 3 1 Scope This standard specifies the method for the notched specimen test, which is used to ass
20、ess the hydrogen embrittlement of steels during chemical or electrolytic surface treatments. It is applicable whenever referenced. 2 Apparatus Any device allowing a constant load to be applied to the test specimens may be used, i.e.direct load machines, dynamometric rings, etc. 3 Test specimens 3.1
21、Material and heat treatment They shall be identical with those of the parts. However, the purchaser may require to use a reference material and heat treatment. 3.2 Dimensions See Figure 1 and Table 1. 3.3 Surface treatment It shall be carried out as on the parts and ensure that the thickness of the
22、deposit at the notch root is the same as that specified for the parts. 3.4 De-embrittlement It shall be carried out as for the parts. 4 Procedure The test specimens shall be subjected for200h, at ambient temperature, to an axial load equal to(75 2)% of the tensile strength of a notched uncoated spec
23、imen. 5 Fault sanction No fracture is permissible before200h. 6 Test report It shall include the following: reference to this standard; reference numbers and types of the test specimens; nature of the coating; thickness of the coating; test result.EN 2832:1993 4 BSI 12-1999 Table 1 Figure 1 Dimensio
24、ns en millimetres Type D E G R 1 R 2 nom. tol. nom. tol. nom. tol. min. max. nom. tol. 1 6,40 0,03 9,07 0,08 14 +1 0 3,18 6,35 0,23 0,013 2 4,52 6,35 17,5 +1 0 0,13BS EN 2832:1993 BSI 12-1999 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation o
25、f this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/44 upon which the following bodies were represented: Aluminium Finishing Association Metal Finishing Association Ministry of Defence National Centre of Tribology Oil and Colour Chemi
26、sts Association Paintmakers Association of Great Britain Ltd. Society of British Aerospace Companies LimitedBS EN 2832:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view
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