DIN EN 1043-2-1996金属材料焊缝破坏试验.硬度试验.第2部分焊接接缝显微硬度试验

1、DIN EN 1043-2-1996 金属材料焊缝破坏试验.硬度试验.第2部分焊接接缝显微硬度试验ICS 25.160 .40 DEUTSCHE NORM ardness testing of welds in metallic materials Micro hardness testing on welded joints English version of DIN EN 1043四2Descriptors: Testing , welded joints, hardness test, metals. November 1996 DIN EN 1043皿2Zerst?rend Prfu

2、ng von Schwi?verbindungen an metallischen Werkstoffn 一 H?rteprfung Teil 2: Mikroh?rtprfung an Schwei?verbindungen European Standard EN 1043圄2: 1996 has the status 01 a DIN Standard 圄A comma is used as the decimal marker. National foreword This standard has been prepared by CEN厅C 121. The responsible

3、 German body involved in its preparation was the Normenausschu Schwei?technik (Welding Standards Committee), Technical Committee Zerst?rende Prfung von Schwei?verbindungen. DIN 50133 is the standard corresponding to International Standards ISO 6507斗 and ISO 6507-2 referred to in clause 2 of the EN.

4、Standard referred to (and not included in Normative references) DIN 50133 Vickers hardness testing of metallic materials 一 HV 0 ,2 to HV 100 。 No part 01 this standard may be reproduced without the prior permission of DIN Deutsche8 In8tftut tr Normung e. V. , Berlin. Beuth Verlag GmbH, Berlin, has t

5、he exclusive right 01 sale for German Standards (DIN-Normen). 巨N comprises 10 pages 阳Ref. No. DIN EN 1043回2:1996-11Price group 07 8ales No. 1107 05.97 EUROPEAN S?NDARD NORME 睦UROPEENNEEUROP?I串串HE NORM EN 1043-2 October 1996 ICS 25.160 .40 Descriptors: Testing, welded joints, hardness test, metals. E

6、nglish version Destructive tests on welds in metallic materials Hardness test Part 2: Micro hardness testing on welded joints Essais destructifs des soudures sur matriaux mtalliques - Essai de duret -Partie 2: Essai de microduret des assemblags soud告$Zerst?rende Prfung von Schwei?verbin-dungen an me

7、tallischen Werkstoffen -H?rteprfung - Teil 2: Mikroh?rteprfung an Schwei?verbindungen This European Standard was approved by CEN on 1996-05-23 固CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate th告 conditions for giving this European Standard the status of a n

8、ational standard without any alt串阳tion.Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any C巨N member. This European Standard exists in three official versions (English , French , German). A version in

9、 any other language made by translation under the responsibility of a CEN member into its own languag自 and notifi自d to the Central S自cr自tariat has the same status as the official verslons. CEN members are the national standards bodies of Austria , Belgium, Denmark, Finland , France, Germany, Greece,

10、 Iceland , Ireland , Italy, Luxembourg, Netherlands, Norway, Por-tugal , Spain , Sweden , Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europ?isches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 。 1996. CEN - A

11、II rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN 1043国2: 1996 E Foreword.;.1111.11. 2 1 Scope .回.;. 3 2 Normative references . .四 a s g. . ? . .田.国. 3 3 Principle .回.;.团.植.国.，.;.国.田. 3 4 Denominations and symbols .， ?.II. 圄. 3 5 Preparat

12、ion of test specimens. 自. 4 6 Test procedure .回.;.圃.田. . . 11 圃. 4 6.1 Rows of indentations (R) . . . . e 0 .国 0. . 4 6.2 Individual indentations (E) . u .嗣国. 5 7 Test results . . 5 8 Test report.,.;1;. 6 Annex A (informative) 时ardness testin由 (R) on welded joints. ; 8 . 8.;. ;. 8. ;. . . . . . 9 An

13、nex B (informative) Hardness testing (E) on welded joints. .10 Foreword This European Standard has been prepared by Technical Committee CENITC 121 ;Weldi吨thesecretariat of which is held by DS. This European Standard shall be given the status of a national standard, either by publication of an identi

14、cal text or by endorsement, at the latest by Apri11997, and conflicting national standards shall be withdrawn at the latest by April 1997. According to the CEN/CENELEC Intemal Regulations , the national standards organizations of the following countries are bound to implement this European Standard:

15、 Austria , Belium ， Denma础，Finla时， France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, No阳ay ，PO叫ugal ， Spain , Sweden, Switzerland and the United Kingdom. Page 3 EN 1043-2: 1996 This standard specifies mcro hardness tests on transverse sections of welded joints of metallic ma

16、terials with high hardness radients. It covers Vickers hardness tests in accordance with 180/D!8 6507斗， normally with test loads of 0 ， 9自 N to less than 49 N (HV 0 ,1 to less than HV 5). Testing should be carried out to ensure that the highest and/or the lowest level of hardness of both parent meta

17、l (in the case of dissimilar metal both parent metal) and weld metal is determined 圃The type and extent of testin sha!l be as specified by an application standard or by agreement between the contracting parties. This standard does not cover the hardness test as described in EN 1043斗，2 Normative refe

18、rences This European 8tandard inco币。rates ， by dated or undated reference雷 provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of t

19、hese publications apply to this European 8tandard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 1043-1 Oestructive test on welds in metallic materials - Hardness testing - Part 1: Hardness test on arc welde

20、d joints 180/018 6507-1: 1995 Metallic materials - Vickers Hardness test 翩 Part 1 : Test method 3 Principle 时icro hardness testing shall be carried out in accordance with 180/018 6507-1. The micro hardness tests may be carried out in the form of rows of indentations冒民， or as individual indentations,

21、 E. When types of weld are not shown in the examples, the test procedure shall be appropriate to the welded joint. Unless otherwise specified , the test shall be carried out at ambient temperature (23 士码。C4 Denomination5 and 5yn啦。15The denominations and symbols to be used are specified in table 1 an

22、d represented on figures 1 to 3. Table 1 : Denominations and symbols 8ymbol Oesgnation Unit E Individual indentation R Row of indentation HV Vickers hardness L Oistance between the centrepoint of the indentations in mm heat affected zone H Oistance of rows of indentations from the reference line 阿1门

23、1(surface or fusion line) Thickness of test specimen mm 1) The unit of symbolisation for Vickers hardness is given in 180/018 6507斗 E5 Preparation of test specimens The preparation of the test specmen shall be in accordance wth 180/018 6507四 1.A cross-section of test piece shall be taken by mechanic

24、al cutting , usually transverse to the welded joint. This operation and the subsequent preparation of the surface shall be carried out carefully so that the hardness of the surface to be tested is not affected metallurgically. The surface to be tested shall be properly prepared and preferably etched

25、, so that accurate measurements of the diagonal of the indentations can be achieved in the different zones of the welded joint. 6 Test procedure 6.1 Rows of indentations (R) Fiures 1 to 3 give examples of hardness indentations made in rows including the distance from the surface so that these rows o

26、r parts of them permit an assessment of the welded joint. If required by the contracting parties, additional rows of indentations and/or different locations may be made. The location shall be stated in the test report. In metals such as aluminium, copper and their alloys, the rows on the root-side o

27、f butt welds (see fiure 1) can not be necessary. The number and spacin窜。f indentations shall be sufficient to define hardened or softened regions due to welding. Recommended distance between the centrepoint of the indentations in the heat affected zone (HAZ) s gven n table 2. Page 5 EN 1043-2: 1996

28、Sufficient indentations shall be made to ensure that unaffected parent metal is tested. In the weld metal, the distance between indentations shall be selected and checked so that the results obtained will enable assessment of the welded joint to be made. For metals which harden in the HAZ as a resul

29、t of welding, two additional indentations in the HAZ shall be made at a distance not exceeding 0,5 mm between the centrepoint of the indentation and the fusion line (see figure 2). For other joint configurations or metals (e.g. austenitic steels) special requirements may be given by an application s

30、tandard or by agreement between the contracting parties. Table 2 : Recommended distance, L, between the centrepoint of the indentations in the heat affected zone (HAZ) Vickers Recommended distance between hardness indentations L 1) symbol 付1付1Ferrous metals 2) Aluminium. copper and their alloys HVO,

31、1 0.2 O 自 to 2 HV 0.5 1,5 to 4 HV 5 。， 7 2 ,5 to 5 1) The distance of any indentation from the previous indentation shall not be less than the value allowed for the previous indentation by ISO/OIS 6507. 才.2) Excluding austenitic steels. 自.2 Individual indentations (E) Figure 4 shows typical areas fo

32、r the location of individual indentations. The series 1.4 gives the information about the unaffected parent metal, the series 5-8 refers to the HAZ and the series 9-11 to the weld metal. Otherwise, the location of the indentation can be determined on the basis of metallographic examination. To preve

33、nt the influence of deformation caused by an indentation, the minimum distance between the centrepoint of individual indentations in any direction shall not be less than 2,5 times the mean diagonal of the nearest adjacent indentation. For metals which harden in the HAZ as a result of welding, at lea

34、st one indentation shall be made in the HAZ at a distance of:; 0,5 mm between the centrepoint of the indentation and the fusion line. For testing with individual indentations, the areas shall be numbered as shown in figure 4. 7 Test results The hardness values shall be recorded in relation to the po

35、sition of the indentation. A test report is required. The information to be recorded is listed in annexes A and B. The use of the format given in annexes A and B is recommended. Other formats may be used provided they contain all the required information. Additional information may be required by an

36、 application standard or by areement between the contractin parties. 俨ae可-Parent metal 亡=:J Heat affected zone 应当 Weld metal Note : For thickness :; 4 mm, the rows of indentations shall be at the mid thickness position. Fi窜ure 1 : Exa酣ple of rows of indentation, R, in butt welds in ferrous metals (d

37、i酣ensions in 酣illimeters)Page 7 EN 1043-2: 1996 份量百EZSEE锦Z古甲。嚣锦旦旦Z嚣份3甸回旦啊MEUXO幽XEOE纳2。hg锅嚣主嚣的COE毡制制3ag甲锦g。zmZC响HC叩ZFLFOCOZmwuoJ时3白甲H陆-m苍EUB自CONUHUkmHm工一丽富EHCma圈_ Parent 附al D Heat affected zone 区Jill Weld metal Fi自ure 3 : Location of the indentations in spot and projection seam welds in ferrous meta

38、ls (dimensions in millimeters) 路绍 Pa陪nt metal 仁:=J Heat affected zone 应Ilill Weld metal NOTE : Other areas are possible , by agreemen t. Fi组ure 4 : Example showing areas for hardness testing with individual indentations (E) Hardness testing (R) on welded joints Type of hardness test : Identification of the test machine : Parent metal : T