EN ISO 15324-2008 en Corrosion of metals and alloys - Evaluation of stress corrosion cracking by the drop evaporation test《金属和合金的腐蚀 使用滴落蒸发试验评估应力腐蚀断裂》.pdf
《EN ISO 15324-2008 en Corrosion of metals and alloys - Evaluation of stress corrosion cracking by the drop evaporation test《金属和合金的腐蚀 使用滴落蒸发试验评估应力腐蚀断裂》.pdf》由会员分享,可在线阅读,更多相关《EN ISO 15324-2008 en Corrosion of metals and alloys - Evaluation of stress corrosion cracking by the drop evaporation test《金属和合金的腐蚀 使用滴落蒸发试验评估应力腐蚀断裂》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS EN ISO 15324:2008 Corrosion of metals and alloys Evaluation of stress corrosion cracking by the drop evaporation test ICS 77.060 BS EN ISO 15324:2008 This British Standard was published under the authority of the Standards Committee and comes into effect on 15 February 2001 BSI 2
2、008 ISBN 978 0 580 60538 3 National foreword This British Standard is the UK implementation of EN ISO 15324:2008. It is identical with ISO 15324:2000. It supersedes BS ISO 15324:2000, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/8, Corrosio
3、n of metals and alloys. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard ca
4、nnot confer immunity from legal obligations. Amendments/corrigenda issued since publication Date Comments 30 June 2008 This corrigendum renumbers BS ISO 15324:2000 as BS EN ISO 15324:2008EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15324 April 2008 ICS 77.060 English Version Corrosion of
5、 metals and alloys - Evaluation of stress corrosion cracking by the drop evaporation test (ISO 15324:2000) Corrosion des mtaux et alliages - valuation de la rsistance la fissuration par corrosion sous contrainte par essai dvaporation goutte goutte (ISO 15324:2000) Korrosion von Metallen und Legierun
6、gen - Bewertung der Spannungsrisskorrosion mit der Tropfen- Verdampfungsprfung (ISO 15324:2000) This European Standard was approved by CEN on 21 March 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
7、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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German
8、). 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Rep
9、ublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D
10、E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15324:2008: EForeword The text of ISO 15324:2000 has been prepared by Te
11、chnical Committee ISO/TC 156 “Corrosion of metals and alloys” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 15324:2008 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of which is held by BSI. This European Stan
12、dard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. Attention is drawn to the possibility that some of the elements of
13、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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
14、tandard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingd
15、om. Endorsement notice The text of ISO 15324:2000 has been approved by CEN as a EN ISO 15324:2008 without any modification. BS EN ISO 15324:20081 Corrosion of metals and alloys Evaluation of stress corrosion cracking by the drop evaporation test 1 Scope 1.1 This International Standard specifies the
16、procedure for determining the relative resistance of stainless steels and nickel-base alloys to stress corrosion cracking in a sodium chloride drop evaporation system. 1.2 The method results in a threshold stress to fracture, the magnitude of which can be used to rank the relative performance of dif
17、ferent alloys for this environment. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publica- tions do
18、 not apply. However, parties to agreements based on this International Standard are encouraged to investi- gate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. M
19、embers of ISO and IEC maintain reg- isters of currently valid International Standards. ISO 3696:1987, Water for analytical laboratory use Specification and test methods. ISO 4287:1997, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture par
20、ameters. ISO 4288:1996, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and proce- dures for the assessment of surface texture. ISO 7539-1:1987, Corrosion of metals and alloys Stress corrosion testing Part 1: General guidance on testing procedures. 3 Terms and definiti
21、ons For the purposes of this International Standard, the following terms and definitions apply. 3.1 threshold stress stress below which no fracture in is observed (see also 8.8) 3.2 time-to-fracture elapsed time from start of test until fracture of the specimen 4 Principle 4.1 A dilute salt solution
22、 is dripped on to a heated tensile specimen of the material under test which is held horizon- tally and subjected to a uniaxial load. 4.2 Tests are carried out at different applied stresses and the time to specimen fracture is recorded. A threshold stress is defined based on the principle of no obse
23、rved fracture in . 500 h 500 h BS EN ISO 15324:20082 4.3 The elevated temperatures, wetting and drying process and associated concentration of salt with the drop evaporation process represent a potentially severe environmental condition which could induce stress corrosion cracking in some alloys. As
24、 such, it represents a severe test for alloy performance. 4.4 Evaporation of salt solutions leading to salt concentration at elevated temperature is not uncommon in service and can arise, e.g., in sea water spray situations or as a result of solution leaks dropping on to hot surfaces. However, the v
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