DIN EN ISO 148-3-2017 Metallic materials - Charpy pendulum impact test - Part 3 Preparation and characterization of Charpy V-notch test pieces for indirect verification of pendulum.pdf

1、April 2017 English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.040.10!%dN“2654395www.din.deDIN

2、 EN ISO 148-3Metallic materials Charpy pendulum impact test Part 3: Preparation and characterization of Charpy Vnotch test pieces for indirect verification of pendulum impact machines (ISO 1483:2016);English version EN ISO 1483:2016,English translation of DIN EN ISO 148-3:2017-04Metallische Werkstof

3、fe Kerbschlagbiegeversuch nach Charpy Teil 3: Vorbereitung und Charakterisierung von CharpyVReferenzproben fr die indirekte berprfung der Prfmaschinen (Pendelschlagwerke) (ISO 1483:2016);Englische Fassung EN ISO 1483:2016,Englische bersetzung von DIN EN ISO 148-3:2017-04Matriaux mtalliques Essai de

4、flexion par choc sur prouvette Charpy Partie 3: Prparation et caractrisation des prouvettes Charpy entaille en V pour la vrification indirecte des machines dessai moutonpendule (ISO 1483:2016);Version anglaise EN ISO 1483:2016,Traduction anglaise de DIN EN ISO 148-3:2017-04SupersedesDIN EN ISO 1483:

5、200906www.beuth.deDocument comprises 25 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.04.17 DIN EN ISO 148-3:2017-04 2 A comma is used as the decimal marker. National foreword This document (EN ISO 148-3:2016) has been prepar

6、ed by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 4 “Toughness testing Fracture (F), Pendulum (P), Tear (T)” in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” (Secretariat: AFNOR, France). The responsible

7、 German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-01-44 AA “Impact testing of metals”. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1

8、48-1 DIN EN ISO 148-1 ISO 148-2 DIN EN ISO 148-2 Amendments This standard differs from DIN EN ISO 148-3:2009-06 as follows: a) the German translations of the terms “thickness” and “width” have been unified with standards from the field of fracture mechanics to read “Dicke” and “Breite”. b) Subclause

9、 5.3 on the use of a reference testing machine has been deleted; c) requirements concerning the recommended test temperature in the certificates for reference test pieces have been revised; d) the standard has been editorially revised. Previous editions DIN 51222: 1954-08, 1957-01, 1968-11, 1973-11,

10、 1979-01, 1985-01, 1995-06, 2016-09 DIN 51306: 1983-09 DIN EN 10045-2: 1993-01 DIN EN ISO 148-3: 2009-06 National Annex NA (informative) Bibliography DIN EN ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Test methods DIN EN ISO 148-2, Metallic materials Charpy pendulum impact test

11、 Part 2: Verification of testing machines EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 148-3 November 2016 ICS 77.040.10 Supersedes EN ISO 148-3:2008English Version Metallic materials - Charpy pendulum impact test - Part 3: Preparation and characterization of Charpy V-notch test pieces f

12、or indirect verification of pendulum impact machines (ISO 148-3:2016) Matriaux mtalliques - Essai de flexion par choc sur prouvette Charpy - Partie 3: Prparation et caractrisation des prouvettes Charpy entaille en V pour la vrification indirecte des machines dessai mouton-pendule (ISO 148-3:2016) Me

13、tallische Werkstoffe - Kerbschlagbiegeversuch nach Charpy - Teil 3: Vorbereitung und Charakterisierung von Charpy-V-Referenzproben fr die indirekte Prfung der Prfmaschinen (Pendelschlagwerke)(ISO 148-3:2016) This European Standard was approved by CEN on 20 August 2016. CEN members are bound to compl

14、y 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

15、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 own language and notified to the CEN-CENELEC Management Centre has the sam

16、e status as the official versions. CEN members are the national standards bodies 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,

17、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016

18、 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 148-3:2016 EEuropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 63.1 Definitions pertaining to the machine 63.2 Definitions pertaining

19、to energy 73.3 Definitions related to groups of test pieces 73.4 Definitions pertaining to test pieces 74 Symbols and abbreviated terms . 85 Reference testing machine . 95.1 Characteristics . 95.1.1 General 95.1.2 Geometrical characteristics (see Table 2 and Figures 1 and 2) 105.1.3 Capacity 105.1.4

20、 Hardness 105.1.5 Vibration 115.1.6 Energy-indicating mechanism 115.2 Verification of reference testing machine . 116 Reference test pieces . 116.1 General 116.2 Material 116.3 Dimensions 126.4 Marking 126.5 Qualification of a batch of reference test pieces 126.6 Reference test piece sets 137 Certif

21、icates for reference test pieces 138 Notes for using sets of reference test pieces . 13Annex A (informative) Uncertainty of the certified KV value of Charpy reference materials 16Bibliography .23Contents PageDIN EN ISO 148-3:2017-04EN ISO 148-3:2016 (E) 2Foreword .4European foreword This document (E

22、N ISO 148-3:2016) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” the secretariat of which is held by AFNOR. This European Standard shall be given the sta

23、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of

24、 patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 148-3:2008. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this E

25、uropean 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,

26、Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 148-3:2016 has been approved by CEN as EN ISO 148-3:2016 without any modification. DIN EN ISO 148-3:2017-04EN ISO 148-3:2016 (E)3 ForewordISO (the International Organization for Standardization) i

27、s 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 established has the right to be represe

28、nted 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 standardization.The procedures used to develop

29、 this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IE

30、C Directives, Part 2 (see www.iso.org/directives).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 such patent rights. Details of any patent rights identified during the

31、development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of

32、ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document

33、is ISO/TC 164, Mechanical testing of metals, Subcommittee SC 4, Toughness testing Fracture (F), Pendulum (P), Tear (T) .This third edition cancels and replaces the second edition (ISO 148-3:2008), which has been technically revised.ISO 148 consists of the following parts, under the general title Met

34、allic 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 machinesDIN EN ISO 148-3:2017-04EN ISO 148-3:2016 (E) 4 IntroductionThe suitab

35、ility of a pendulum impact testing machine for acceptance testing of metallic materials has usually been based on a calibration of its scale and verification of compliance with specified dimensions, such as the shape and spacing of the anvils supporting the test piece. The scale calibration is commo

36、nly verified by measuring the mass of the pendulum and its elevation at various scale readings. This procedure for evaluation of machines had the distinct advantage of requiring only measurements of quantities that could be traced to national standards. The objective nature of these traceable measur

37、ements minimized the necessity for arbitration regarding the suitability of the machines for material acceptance tests.However, sometimes two machines that had been evaluated by the direct-verification procedures described above, and which met all dimensional requirements, were found to give signifi

38、cantly different impact values when testing test pieces of the same material.This difference was commercially important when values obtained using one machine met the material specification, while the values obtained using the other machine did not. To avoid such disagreements, some purchasers of ma

39、terials added the requirement that all pendulum impact testing machines used for acceptance testing of material sold to them should be indirectly verified by testing reference test pieces supplied by them. A machine was considered acceptable only if the values obtained using the machine agreed, with

40、in specified limits, with the value furnished with the reference test pieces.Successful experience in the use of reference test pieces led to the requirement in ISO 148-2 that indirect verification should be performed using reference test pieces in addition to direct verification. Other standards an

41、d codes also require indirect verification using reference test pieces; for example, EN 10045-21(now obsolete) and ASTM E232require the use of reference test pieces. The purpose of this part of ISO 148 is to specify the requirements, preparation and methods for qualifying test pieces used for the in

42、direct verification of pendulum impact testing machines.DIN EN ISO 148-3:2017-04EN ISO 148-3:2016 (E)5 1 ScopeThis part of ISO 148 specifies the requirements, preparation and methods for qualifying test pieces used for the indirect verification of pendulum impact testing machines in accordance with

43、ISO 148-2.It specifies notched test pieces with nominal dimensions identical to those specified in ISO 148-1; however, the tolerances are more stringent.NOTE 1 The chemical composition or heat treatment, or both, are varied according to the energy level desired.NOTE 2 Reference test pieces are quali

44、fied on reference pendulum impact testing machines which are also described in this part of ISO 148.2 Normative referencesThe following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edi

45、tion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Test methodISO 148-2, Metallic materials Charpy pendulum impact test Part 2: Verification of testing machines

46、3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1 Definitions pertaining to the machine3.1.1industrial machinependulum impact testing machine used for industrial, general or most research-laboratory testing of metallic materialsNote 1 to entry: T

47、hese machines are not used to establish reference values.3.1.2reference machinependulum impact testing machine used to determine certified values for batches of reference test piecesDIN EN ISO 148-3:2017-04EN ISO 148-3:2016 (E) 6 3.2 Definitions pertaining to energy3.2.1total absorbed energyKTtotal

48、absorbed energy required to break a test piece with a pendulum impact testing machine, which is not corrected for any losses of energyNote 1 to entry: It is equal to the difference in the potential energy from the starting position of the pendulum to the end of the first half swing during which the test piece is broken.3.2.2absorbed energyKenergy required to break a test piece with a pendulum impact testing mac