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1、JAPANESE INDUSTRIAL STANDARD TranslatedandPublishedby Japanese Standards Association JISZ2254:2008 (JISF) Metallic materials -Sheetandstrip -Determination of plastic strain ratio les77.040.10 Referencenumber:JISZ2254:2008(E) PROTECTEDBYCOPYRIGHT 125 Z 2254 :2008 DateofEstablishment:1996-10-20 Dateof
2、 Revision:2008-02-20 Dateof Public NoticeinOfficialGazette:2008-02-20 Investigatedby:JapaneseIndustrialStandardsCommittee StandardsBoard TechnicalCommitteeonIronandSteel JIS Z 2254 :2008, First Englisheditionpublishedin2008-04 Translatedandpublishedby:JapaneseStandardsAssociation 4-1-24, Akasaka, Mi
3、nato-ku, Tokyo, 107-8440JAPAN Intheeventofanydoubtsarisingasto the contents, theoriginalJIS is tobethefinalauthority. JSA 2008 Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilized inanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,wi
4、thout permissioninwritingfromthepublisher. PrintedinJapan PROTECTEDBYCOPYRIGHT KK/HN -,-,- Z2254:2008 Contents Page Introduction1 1Scope1 2Normativereferences1 3Termsanddefinitions2 4Symbols4 5Typeoftestmethodtobechosen5 6Principle“5 7Testequipment5 8Testpiece5 9Testprocedure6 10Expressionofresults8
5、 11Testreport11 AnnexJA(normative)Naturaloscillationmethod12 AnnexJB(informative)ComparisontablebetweenJISandcorresponding InternationalStandard15 PROTECTEDBYCOPYRIGHT -,-,- Z2254:2008 Foreword ThistranslationhasbeenmadebasedontheoriginalJapaneseIndus- trialStandardrevisedbytheMinisterofEconomy,Trad
6、eandIndus- try,throughdeliberationsattheJapaneseIndustrialStandardsCom- mitteeastheresultofproposalofrevisionofJapaneseIndustrialStan- dardsubmittedbyTheJapanIronandSteelFederation(JISF)withthe draftbeingattached,basedontheprovisionofArticle12Clause1ofthe IndustrialStandardizationLawapplicabletothec
7、aseofrevisionbythe provisionofArticle14. ConsequentlyJISZ2254:1996isreplacedwiththisStandard. ThisJISdocumentisprotectedbytheCopyrightLaw. AttentionisdrawntothepossibilitythatsomepartsofthisStandard mayconflictwithapatentright,applicationfor apatentafteropening tothepublic,utilitymodelrightorapplica
8、tionforregistrationofutility modelafteropeningtothepublicwhichhavetechnicalproperties.The relevantMinisterandtheJapaneseIndustrialStandardsCommittee arenotresponsibleforidentifyingthepatentright,applicationfor a patentafteropeningtothepublic,utilitymodelrightorapplicationfor registrationofutilitymod
9、elafteropeningtothepublicwhichhavethe saidtechnicalproperties. PROTECTEDBYCOPYRIGHT -,-,- JAPANESEINDUSTRIALSTANDARDJISZ2254:2008 Metallic materials -Sheet and strip -Determination of plastic strain ratio Introduction ThisJapaneseIndustrialStandardhasbeenpreparedbasedonthesecondeditionof ISO10113pub
10、lishedin2006,withsomemodificationsofthetechnicalcontentsofthe correspondingparts. TheportionswithcontinuoussidelinesanddottedunderlinesarethemattersIII whichthecontentsoftheoriginalInternationalStandardhavebeenmodified. AlistofmodificationswithexplanationsisgiveninAnnexJB. 1Scope ThisStandardspecifi
11、es amethodfordeterminingtheplasticstrainratioofflatprod- ucts(sheetandstrip)madeofmetallicmaterials. NOTE:TheInternationalStandardcorrespondingtothisStandardandthe symbolofcorrespondencedegreeareasfollows. ISO10113:2006Metallicmaterials-Sheetandstrip-Determination ofplasticstrainratio(MOD) Thesymbol
12、swhichdenotethedegreeofcorrespondencebetweenJIS andtherelevantInternationalStandardareIDT(identical),MOD (modified),NEQ(notequivalent)asdefinedinISO/IECGuide21. 2Normativereferences Thefollowingstandardscontainprovisionswhich,throughreferenceinthistext, constituteprovisionsofthisStandard.Themostrece
13、nteditionsofthestandards(in- cludingamendments)indicatedbelowshallbeapplied. .JJB.J7.7.4.l.yt:;nfiq/!l.iQ!1.Qf.t:;Kf.1)J!lJ1f.tft!:$IJ$.t:;f!./1.J!/IJ.Kial.f.$.illg .JJBGQ.Q.Q1Q$.$.iJXXQf.(.rlJJ.$1J$.t:;.c!l.?i!:9/1.a!J.cfl.f.f.(ft:;.$t/.Jg) .JJB_.Z.22QJr.f.$.t.p.itf.$.IQ.J;.l.wwJft.t.t:;t.IQ.J;.lJJ
14、.f.ta!hq.lJJ.lJ.tftda! .J.IBZ.22:tJ.MfJ.t!J.Q.cf.Qftftllikl.f.$.t.f.Q!:.illfJ.t.iJllk.illaft:;xiiJJ.$ NOTE:CorrespondingInternationalStandard:ISO6892:1a1Metallicmate- rials-Tensiletesting(MOD) .J.IB.Z.S:WJG.l1idft.Q.a1.fJ!:Q.l11.?diI)g.ef1.?J!mlJ.f.J; PROTECTEDBYCOPYRIGHT -,-,- 2 Z2254:2008 3Termsan
15、ddefinitions Forthepurposesofthisdocument,thet:rm_i?_:mLg_tbg_.pJiS_ti_tIin_mtJwdc_J.n_tJ:w_i?_.whl?X_th IkYnt_JIS_.mtgXil_$_tng_nl_d9.l?_i?_mt_i?pgify_thE;_.t:YP_E;_.Q_t.E;J;t_mth9_d_t.Q_h_pphl?_d, nd_th_iS.tl_ht._nd_td_t.Iip_jn_9.il_QthI_thn_$_tinJ.l?_i?_tgl_x_t.Q_.1;g_t$_td,_th Y.l?Xgg_.PJ.$_ti_t
16、xin_m_tiQ_mJ:lY._h_Qht.ind_in_Gm:dn_it.h_t_hl?_nt.m:J_QiS_GiUti9_n mtJJQg_i?pgifjg_9xt_j_XtlJ._rg,_itgm_tQ_J_XImrtct_h_ll_n_glt_(l_fxQm_mQng th_El_fQJl9wng_h_th_grmnt_htwn_th_iDtr_tJlI_rti_._ a)areferencetothisStandard; b)identificationofthematerialtested; c)themethodused(manualorautomatic); d)thesh
17、apeandgaugelengthoftestpieceused; e)theorientationofthetestpiecerelativetotherollingdirection; f)theplasticstrain/plasticstrainrangeatwhichthemeasurementsweremade: Examples:r45/8-12angleofspecimenrelativetotherollingdirection45a/linear regressionbetween8%and12%plasticstrain, r45/l0angleofspecimenrel
18、ativetotherollingdirection45a/single datapointmethodat10%plasticstrain; g)testresults; h)theequationsusedtocalculater,rand!.rifdifferentfromEquations(3)and(4). PROTECTEDBYCOPYRIGHT 12 Z2254:2008 AnnexJA(normative) Naturaloscillationmethod JA.1Scope ThisAnnexspecifiesthemethodfordeterminingtheplastic
19、strainratioofsteel sheetorsteelstripincoilexcludingstainlesssteel,basedonthenaturaloscillation method. JA.2Termsanddefinitions ForthepurposeofthisAnnex,thetermsanddefinitionsgiveninJISG 0202andthe followingapply: JA.2.1AverageYoungsmodulusCE) Weightedmeanvalueobtainedbytheeqiatopm(JA.1)usingtheYoung
20、smodulus measuredbytakingthetestpiecesinthedirectionsparallel,450and900relativeto therollingdirectionofthesheetsurface. E=Eo+2E45+E90(JA1) 4. where,Eo:Youngsmodulusmeasuredtakingthetestpieceinpar- alleltotherollingdirectionofsheetsurface(MPa) E45Youngsmodulusmeasuredtakingthetestpieceatthe angleof45
21、0totherolling direction ofsheetsurface(MPa) E90:Youngsmodulusmeasuredtakingthetestpieceatthe angleof900totherolling direction ofsheetsurface(MPa) NOTE:1MPa=1N/mm2 JA.3Principleoftest TheaverageYoungsmodulusisobtainedatfirstbytheresonancemethodof mag- netostrictivevibrationmethodandthen,usingthefactt
22、hatthismodulusisinastrong relationwiththeweightedaverageplasticstrainratioobtainedbytheplasticstrain method,theweightedaverageplasticstrainratioisobtainedindirectlyfromthere- gressionformulawhichisobtainedbystatisticanalysis. NOTE:Whenbasedontheresonancemethodofmagnetostrictivevibration method,theob
23、ject to betestedshallbetheferromagneticmaterial. PROTECTEDBYCOPYRIGHT 13 Z2254:2008 JA.4Testequipment ThetestequipmentshallbeconstructedasshowninfigureJA.1asaruleandbe capableofdetectingtheresonancefrequencywithdetectioncoilbyaddingthehigh frequencyvibrationtothetestpieceusingtheexcitationcoil. Outp
24、ut Amplifier a:DTestpiece / a:Da:Da:D ExcitationBiascoilDetection coilcoil FigureJA.1Exampleofconstructionofresonancefrequencymeasuring equipmentbasedonnaturaloscillationmethod JA.5Testpiece Thetestpieceshallbeasfollows : a)Samplingoftestpieceshallbeasspecifiedineachrelevantmaterialstandard. Unlesso
25、therwisespecified,theagreementbetweentheinterestedpartiesapplies. b)Thetestpiecespecifiedforeachmeasuringinstrumentshallbeused.Thetolerance onthedimensionshallbe0.025mm. JA.6Test Thetestprocedureshallbeasfollows: a)TesttemperatureThetesttemperatureshallbewithinarangeof10eto35e andthetestcarriedoutun
26、derthecontrolledconditions,ifnecessary,shallbemade atatemperatureof235e. b)MeasurementoftestpiecelengthThetestpiecelengthshallbemeasuredtothe nearest0.025mminprecision.Iftheprocessingprecisionofthetestpieceiscon- trolledsufficientlywithinatoleranceof0.025mm,thenominallengthmaybe used. c)Measuremento
27、fresonancefrequencyoftestpieceTheresonancefrequencyofthe testpiecetakeninthedirectionsofparallel,450and900totherollingdirectionof thesheetsurfaceshallbemeasuredusingthetestequipmentspecifiedinJA.4to theintegerplace. d)CalculationofweightedaverageplasticstrainratioTheprocedureofcalculation PROTECTEDB
28、YCOPYRIGHT -,-,- 14 Z2254:2008 shallbeasfollows : 1)TheYoungsmodulusofthetestpiecetakeninthedirectionsofparallel,450and 900totherollingdirectionofthesheetsurfaceshallbeobtainedbytheequation (JA.2). E=4pPf2(JA.2) where,E:Youngsmodulus(MPa) p:bulkdensity(7.87 g/cm3) I:lengthoftestpiece (mm) f:resonanc
29、efrequency(Hz) NOTE:1MPa=1N/mm2 2)Average Youngsmodulusshallbecalculatedusingtheequation(JA.1)andbe roundedoff tofoursignificantfigures.Theroundingoffofnumericalvaluesshall beinaccordancewithRuleAofJISZ 8401. 3)Weightedaverageplasticstrainratioshallbecalculatedbytheequation(JA.3) usingtheaverageYoun
30、gsmodulusandroundedoffdowntothefirstdecimal place.TheroundingoffofnumericalvaluesshallbeinaccordancewithRuleAof JISZ 8401. r=101.440.564 (JA.3) (145.0xEx10-6-38.83/ 4)Ifthereisanyquestionaboutthetestvalueobtainedbythenaturaloscillation method,thetestmethodbasedontheplasticstrainmethodshallbeconsider
31、ed thereferencetestmethod. JA.7Calibrationandcorrectionofweightedaverageplasticstrainratiobyplastic strainmethod Obtainthecalibrationcurvebyusingtheweightedaverageplasticstrainratiore- sultedfromtheplasticstrainmethodandcorrecttheweightedaverageplasticstrain ratioobtainedbythenaturaloscillationmetho
32、d.Ifthedifferencebetweenbothvalues iswithin0.1,thecorrectionisunnecessary. PROTECTEDBYCOPYRIGHT “0 ;:0 o “-3 I:I:l (1 “-3 I:I:l U (1 o “0 ;3 “ :) l:) 01 l:) o of- 0001 “0 ;:0 o “-3 I:I:l (1 “-3 I:I:l U (1 o “0 ;3 “ :) l:) 01 l:) o of- 00-1 -,-,- “0 ;:0 o “-3 I:I:l (1 “-3 I:I:l U (1 o “0 ;3 “ :;1 :r:
33、 “-3 -Identical:Identicalintechnicalcontents. -Addition:Addsthespecificationitem(s)andcontent(s)whicharenotincludedinInternationalStandard. -Alteration:Altersthespecificationcontent(s)whichareincludedinInternationalStandard. NOTE2SymbolincolumnofdesignateddegreeofcorrespondencebetweenJISandInternati
34、onalStandardsintheabove tableindicatesasfollows: -MOD:ModifiesInternationalStandards. Nf- oo 01 o o 00 ErrataforJIS(Englishedition)areprintedinStandardizationJournal,publishedmonthlyby theJapaneseStandardsAssociation,andalsoprovidedtosubscribersofJIS(Englishedition)in lVIonthlyInformation. Erratawillbeprovideduponrequest,pleasecontact: StandardsPublishingDepartment,JapaneseStandardsAssociation 4-1-24,Akasaka,Minato-ku,Tokyo, 107-8440JAPAN TEL.03-3583-8002FAX.03-3583-0462 PROTECTEDBYCOPYRIGHT -,-,-