1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 148-1:2010Metallic materials Charpypendulum impact testPart 1: Test methodCopyright European Committee for Standardization Provided by IHS under license with CENNot for
2、 ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 148-1:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 148-1:2010.It supersedes BS EN 10045-1:1990 which is withdrawn.The UK participation in its preparation was entrus
3、ted to TechnicalCommittee ISE/101/4, Toughness testing.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010IS
4、BN 978 0 580 67286 6ICS 77.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedCopyright Eu
5、ropean Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 148-1 October 2010 ICS 77.040.10 Supersedes EN 10045-1:1990English Version Metallic m
6、aterials - Charpy pendulum impact test - Part 1: Test method (ISO 148-1:2009) Matriaux mtalliques - Essai de flexion par choc sur prouvette Charpy - Partie 1: Mthode dessai (ISO 148-1:2009) Metallische Werkstoffe - Kerbschlagbiegeversuch nach Charpy -Teil 1: Prfverfahren (ISO 148-1:2009) This Europe
7、an Standard was approved by CEN on 2 October 2010. 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 lists and bibliographical references conc
8、erning 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). A version in any other language made by translation under the responsibility of a CEN member into its o
9、wn 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv
10、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brusse
11、ls 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 148-1:2010: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license f
12、rom IHS-,-,-BS EN ISO 148-1:2010EN ISO 148-1:2010 (E) 3 Foreword The text of ISO 148-1:2009 has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 148-1:2010 by Technical Committ
13、ee ECISS/TC “Test methods for steel (other than chemical analysis)” the secretariat of which is held by AFNOR. 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 2011, and conflicting national
14、standards shall be withdrawn at the latest by April 2011. 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
15、10045-1:1990. 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, France, Germany, Greece, Hungary, Ic
16、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 148-1:2009 has been approved by CEN as a EN ISO 148-1:2010 without any modification.
17、Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 148-1:2010ISO 148-1:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3
18、 Terms and definitions .1 3.1 Energy.1 3.2 Test piece .2 4 Symbols and abbreviated terms 2 5 Principle2 6 Test pieces .3 6.1 General .3 6.2 Notch geometry .3 6.3 Tolerance of the test pieces .3 6.4 Preparation of the test pieces 3 6.5 Marking of the test pieces 3 7 Test equipment 4 7.1 General .4 7.
19、2 Installation and verification4 7.3 Striker .4 8 Test procedure.4 8.1 General .4 8.2 Test temperature .4 8.3 Specimen transfer .4 8.4 Exceeding machine capacity .5 8.5 Incomplete fracture .5 8.6 Test piece jamming .5 8.7 Post-fracture inspection .5 9 Test report5 9.1 Mandatory information5 9.2 Opti
20、onal information .6 Annex A (informative) Self-centring tongs.9 Annex B (informative) Lateral expansion .11 Annex C (informative) Fracture appearance 14 Annex D (informative) Absorbed energy vs. temperature and transition temperature .17 Annex E (informative) Measurement uncertainty of an absorbed e
21、nergy value, KV19 Bibliography26 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 148-1:2010ISO 148-1:2009(E) iv ISO 2009 All rights reservedForeword ISO (the Internatio
22、nal Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been
23、established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standar
24、dization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for v
25、oting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all s
26、uch patent rights. ISO 148-1 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 4, Toughness testing Fracture (F), Pendulum (P), Tear (T). This second edition cancels and replaces the first edition (ISO 148-1:2006), which has been technically revised. ISO 1
27、48 consists of the following parts, under the general title Metallic materials Charpy pendulum impact test: Part 1: Test method Part 2: Verification of testing machines Part 3: Preparation and characterization of Charpy V-notch test pieces for indirect verification of pendulum impact machines Annexe
28、s B and C are based on ASTM E23 (Standard Test Methods for Notched Bar Impact Testing of Metallic Materials), copyright ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, USA. Copyright European Committee for Standardization Provided by IHS under license with
29、 CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 148-1:2010INTERNATIONAL STANDARD ISO 148-1:2009(E) ISO 2009 All rights reserved 1Metallic materials Charpy pendulum impact test Part 1: Test method 1 Scope This part of ISO 148 specifies the Charpy pendu
30、lum impact (V-notch and U-notch) test method for determining the energy absorbed in an impact test of metallic materials. This part of ISO 148 does not apply to instrumented impact testing, which is specified in ISO 14556. 2 Normative references The following referenced documents are indispensable f
31、or the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 148-2:2008, Metallic materials Charpy pendulum impact test Part 2: Verification of testing machines
32、 ISO 286-1, Geometrical product specifications (GPS) ISO code system for tolerances of linear sizes Part 1: Basis of tolerances, deviations and fits 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Energy 3.1.1 initial potential energy potenti
33、al energy Kpdifference between the potential energy of the pendulum hammer prior to its release for the impact test, and the potential energy of the pendulum hammer at the position of impact, as determined by direct verification ISO 148-2:2008, definition 3.2.2 3.1.2 absorbed energy K energy require
34、d to break a test piece with a pendulum impact testing machine, after correction for friction NOTE The letter V or U is used to indicate the notch geometry, that is: KV or KU. The number 2 or 8 is used as a subscript to indicate striker radius, for example KV2. Copyright European Committee for Stand
35、ardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 148-1:2010ISO 148-1:2009(E) 2 ISO 2009 All rights reserved3.2 Test piece With the test piece placed in the test position on the supports of the machine, the f
36、ollowing nomenclature shall apply (see Figure 1). 3.2.1 height h distance between the notched face and the opposite face 3.2.2 width w dimension perpendicular to the height that is parallel to the notch 3.2.3 length l the largest dimension at right angles to the notch 4 Symbols and abbreviated terms
37、 The symbols and designations applicable to this part of ISO 148 are indicated in Tables 1 and 2, and are illustrated in Figure 2. Table 1 Symbols and their unit and designation Symbol Unit Designation KpJ Initial potential energy (potential energy) FA % Shear-fracture appearance h mm Height of test
38、 piece KU2J Absorbed energy for a U-notch test piece using a 2 mm striker KU8J Absorbed energy for a U-notch test piece using an 8 mm striker KV2J Absorbed energy for a V-notch test piece using a 2 mm striker KV8J Absorbed energy for a V-notch test piece using a 8 mm striker LE mm Lateral expansion
39、l mm Length of test piece TtC Transition temperature w mm Width of test piece 5 Principle This test consists of breaking a notched test piece with a single blow from a swinging pendulum, under the conditions defined in Clauses 6, 7 and 8. The notch in the test piece has specified geometry and is loc
40、ated in the middle between two supports, opposite to the location which is struck in the test. The energy absorbed in the impact test is determined. Because the impact values of many metallic materials vary with temperature, tests shall be carried out at a specified temperature. When this temperatur
41、e is other than ambient, the test piece shall be heated or cooled to that temperature, under controlled conditions. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 148-
42、1:2010ISO 148-1:2009(E) ISO 2009 All rights reserved 36 Test pieces 6.1 General The standard test piece shall be 55 mm long and of square section, with 10 mm sides. In the centre of the length, there shall be either a V-notch or a U-notch, as described in 6.2.1 and 6.2.2, respectively. If the standa
43、rd test piece cannot be obtained from the material, one of the subsidiary test pieces, having a width of 7,5 mm, 5 mm or 2,5 mm (see Figure 2 and Table 2), shall be used. NOTE For low energies, the use of shims is important, as excess energy is absorbed by the pendulum. For high energies, this might
44、 not be important. Shims can be placed on or under the test piece supports, with the result that the mid-height of the specimen is 5 mm above the 10 mm specimen-support surface. The test pieces shall have a surface roughness of better than Ra 5 m except for the ends. When a heat-treated material is
45、being evaluated, the test piece shall be finish-machined, including notching, after the final heat treatment, unless it can be demonstrated that there is no difference when machined prior to heat treatment. 6.2 Notch geometry The notch shall be carefully prepared so that the root radius of the notch
46、 is free of machining marks which could affect the absorbed energy. The plane of symmetry of the notch shall be perpendicular to the longitudinal axis of the test piece (see Figure 2). 6.2.1 V-notch The V-notch shall have an included angle of 45, a depth of 2 mm, and a root radius of 0,25 mm see Fig
47、ure 2 a) and Table 2. 6.2.2 U-notch The U-notch shall have a depth of 5 mm (unless otherwise specified) and a root radius of 1 mm see Figure 2 b) and Table 2. 6.3 Tolerance of the test pieces The tolerances on the specified test piece and notch dimensions are shown in Figure 2 and Table 2. 6.4 Prepa
48、ration of the test pieces Preparation shall be carried out in such a way that any alteration of the test piece, for example due to heating or cold working, is minimized. 6.5 Marking of the test pieces The test piece may be marked on any face not in contact with supports, anvils or striker and at a position which avoids the effects of plastic deformation and surface discontinuities on the absorbed energy measured in the test (see 8.7). Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license
