JIS-Z-2254-2008-ENG.pdf

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 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, Minato-ku, Tokyo, 107-8440JAPAN Intheeventofanydoubtsarisingasto the contents, theoriginalJIS is tobethefinalauthority. ©JSA 2008 Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilized inanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,without permissioninwritingfromthepublisher. PrintedinJapan PROTECTEDBYCOPYRIGHT KK/HN -,-,- Z2254:2008 Contents Page Introduction'1 1Scope'············································································1 2Normativereferences············································································1 3Termsanddefinitions2 4Symbols········································4 5Typeoftestmethodtobechosen5 6Principle'“5 7Testequipment····5 8Testpiece5 9Testprocedure···························6 10Expressionofresults············································································8 11Testreport··11 AnnexJA(normative)Naturaloscillationmethod···12 AnnexJB(informative)ComparisontablebetweenJISandcorresponding InternationalStandard············································'15 PROTECTEDBYCOPYRIGHT -,-,- Z2254:2008 Foreword ThistranslationhasbeenmadebasedontheoriginalJapaneseIndus- trialStandardrevisedbytheMinisterofEconomy,TradeandIndus- try,throughdeliberationsattheJapaneseIndustrialStandardsCom- mitteeastheresultofproposalofrevisionofJapaneseIndustrialStan- dardsubmittedbyTheJapanIronandSteelFederation(JISF)withthe draftbeingattached,basedontheprovisionofArticle12Clause1ofthe IndustrialStandardizationLawapplicabletothecaseofrevisionbythe provisionofArticle14. ConsequentlyJISZ2254:1996isreplacedwiththisStandard. ThisJISdocumentisprotectedbytheCopyrightLaw. AttentionisdrawntothepossibilitythatsomepartsofthisStandard mayconflictwithapatentright,applicationfor apatentafteropening tothepublic,utilitymodelrightorapplicationforregistrationofutility modelafteropeningtothepublicwhichhavetechnicalproperties.The relevantMinisterandtheJapaneseIndustrialStandardsCommittee arenotresponsibleforidentifyingthepatentright,applicationfor a patentafteropeningtothepublic,utilitymodelrightorapplicationfor registrationofutilitymodelafteropeningtothepublicwhichhavethe saidtechnicalproperties. PROTECTEDBYCOPYRIGHT -,-,- JAPANESEINDUSTRIALSTANDARDJISZ2254:2008 Metallic materials -Sheet and strip -Determination of plastic strain ratio Introduction ThisJapaneseIndustrialStandardhasbeenpreparedbasedonthesecondeditionof ISO10113publishedin2006,withsomemodificationsofthetechnicalcontentsofthe correspondingparts. TheportionswithcontinuoussidelinesanddottedunderlinesarethemattersIII whichthecontentsoftheoriginalInternationalStandardhavebeenmodified. AlistofmodificationswithexplanationsisgiveninAnnexJB. 1Scope ThisStandardspecifies amethodfordeterminingtheplasticstrainratioofflatprod- ucts(sheetandstrip)madeofmetallicmaterials. NOTE:TheInternationalStandardcorrespondingtothisStandardandthe symbolofcorrespondencedegreeareasfollows. ISO10113:2006Metallicmaterials-Sheetandstrip-Determination ofplasticstrainratio(MOD) ThesymbolswhichdenotethedegreeofcorrespondencebetweenJIS andtherelevantInternationalStandardareIDT(identical),MOD (modified),NEQ(notequivalent)asdefinedinISO/IECGuide21. 2Normativereferences Thefollowingstandardscontainprovisionswhich,throughreferenceinthistext, constituteprovisionsofthisStandard.Themostrecenteditionsofthestandards(in- cludingamendments)indicatedbelowshallbeapplied. .JJB.J7.7.4.l.y't:;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.cf§l.f.f.(ft:;.$t/.Jg) .JJB_.Z.22QJr.f.$.t.p.itf.$.IQ.J;'.l.wwJft.t.t:;§t.IQ.J;'.lJJ.f.ta!hq.lJJ.lJ.tftda!§ .J.IBZ.22:tJ.MfJ.t!J.Q.cf.Qftftll§ikl.f.$.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 3Termsanddefinitions Forthepurposesofthisdocument,thet:rm_i?_:mLg_tbg_.pJiS_ti_tIin_mtJwdc_J.n_tJ:w_i?_.whl?X_th IkYnt_JIS_.mtgXil_$_tng_nl_d9.l?_i?_mt_i?pgify_thE;_.t:YP_E;_.Q£_t.E;J;t_mth9_d_t.Q_h_pphl?_d, nd_th_iS.tl_ht._nd_td_t.Ii'p_jn_9.il_QthI_thn_$_tinJ.l?_i?_tgl_x_t.Q_.1;g_t$_td,_th Y.l?Xgg_.PJ.$_ti_txin_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)theshapeandgaugelengthoftestpieceused; e)theorientationofthetestpiecerelativetotherollingdirection; f)theplasticstrain/plasticstrainrangeatwhichthemeasurementsweremade: Examples:r45/8-12angleofspecimenrelativetotherollingdirection45a/linear regressionbetween8%and12%plasticstrain, r45/l0angleofspecimenrelativetotherollingdirection45a/single datapointmethodat10%plasticstrain; g)testresults; h)theequationsusedtocalculater,rand!.rifdifferentfromEquations(3)and(4). PROTECTEDBYCOPYRIGHT 12 Z2254:2008 AnnexJA(normative) Naturaloscillationmethod JA.1Scope ThisAnnexspecifiesthemethodfordeterminingtheplasticstrainratioofsteel sheetorsteelstripincoilexcludingstainlesssteel,basedonthenaturaloscillation method. JA.2Termsanddefinitions ForthepurposeofthisAnnex,thetermsanddefinitionsgiveninJISG 0202andthe followingapply: JA.2.1AverageYoung'smodulusCE) Weightedmeanvalueobtainedbytheeqiatopm(JA.1)usingtheYoung'smodulus measuredbytakingthetestpiecesinthedirectionsparallel,450and900relativeto therollingdirectionofthesheetsurface. E=Eo+2E45+E90(JA1) 4. where,Eo:Young'smodulusmeasuredtakingthetestpieceinpar- alleltotherollingdirectionofsheetsurface(MPa) E45Young'smodulusmeasuredtakingthetestpieceatthe angleof450totherolling direction ofsheetsurface(MPa) E90:Young'smodulusmeasuredtakingthetestpieceatthe angleof900totherolling direction ofsheetsurface(MPa) NOTE:1MPa=1N/mm2 JA.3Principleoftest TheaverageYoung'smodulusisobtainedatfirstbytheresonancemethodof mag- netostrictivevibrationmethodandthen,usingthefactthatthismodulusisinastrong relationwiththeweightedaverageplasticstrainratioobtainedbytheplasticstrain method,theweightedaverageplasticstrainratioisobtainedindirectlyfromthere- gressionformulawhichisobtainedbystatisticanalysis. NOTE:Whenbasedontheresonancemethodofmagnetostrictivevibration method,theobject to betestedshallbetheferromagneticmaterial. PROTECTEDBYCOPYRIGHT 13 Z2254:2008 JA.4Testequipment ThetestequipmentshallbeconstructedasshowninfigureJA.1asaruleandbe capableofdetectingtheresonancefrequencywithdetectioncoilbyaddingthehigh frequencyvibrationtothetestpieceusingtheexcitationcoil. Output Amplifier a:DTestpiece / a:Da:Da:D ExcitationBiascoilDetection coilcoil FigureJA.1Exampleofconstructionofresonancefrequencymeasuring equipmentbasedonnaturaloscillationmethod JA.5Testpiece Thetestpieceshallbeasfollows : a)Samplingoftestpieceshallbeasspecifiedineachrelevantmaterialstandard. Unlessotherwisespecified,theagreementbetweentheinterestedpartiesapplies. b)Thetestpiecespecifiedforeachmeasuringinstrumentshallbeused.Thetolerance onthedimensionshallbe±0.025mm. JA.6Test Thetestprocedureshallbeasfollows: a)TesttemperatureThetesttemperatureshallbewithinarangeof10°eto35°e andthetestcarriedoutunderthecontrolledconditions,ifnecessary,shallbemade atatemperatureof23±5°e. b)MeasurementoftestpiecelengthThetestpiecelengthshallbemeasuredtothe nearest0.025mminprecision.Iftheprocessingprecisionofthetestpieceiscon- trolledsufficientlywithinatoleranceof±0.025mm,thenominallengthmaybe used. c)MeasurementofresonancefrequencyoftestpieceTheresonancefrequencyofthe testpiecetakeninthedirectionsofparallel,450and900totherollingdirectionof thesheetsurfaceshallbemeasuredusingthetestequipmentspecifiedinJA.4to theintegerplace. d)CalculationofweightedaverageplasticstrainratioTheprocedureofcalculation PROTECTEDBYCOPYRIGHT -,-,- 14 Z2254:2008 shallbeasfollows : 1)TheYoung'smodulusofthetestpiecetakeninthedirectionsofparallel,450and 900totherollingdirectionofthesheetsurfaceshallbeobtainedbytheequation (JA.2). E=4pPf2·····(JA.2) where,E:Young'smodulus(MPa) p:bulkdensity(7.87 g/cm3) I:lengthoftestpiece (mm) f:resonancefrequency(Hz) NOTE:1MPa=1N/mm2 2)Average Young'smodulusshallbecalculatedusingtheequation(JA.1)andbe roundedoff tofoursignificantfigures.Theroundingoffofnumericalvaluesshall beinaccordancewithRuleAofJISZ 8401. 3)Weightedaverageplasticstrainratioshallbecalculatedbytheequation(JA.3) usingtheaverageYoung'smodulusandroundedoffdowntothefirstdecimal place.TheroundingoffofnumericalvaluesshallbeinaccordancewithRuleAof JISZ 8401. r=101.440.564 ···························(JA.3) (145.0xEx10-6-38.83/ 4)Ifthereisanyquestionaboutthetestvalueobtainedbythenaturaloscillation method,thetestmethodbasedontheplasticstrainmethodshallbeconsidered thereferencetestmethod. JA.7Calibrationandcorrectionofweightedaverageplasticstrainratiobyplastic strainmethod Obtainthecalibrationcurvebyusingtheweightedaverageplasticstrainratiore- sultedfromtheplasticstrainmethodandcorrecttheweightedaverageplasticstrain ratioobtainedbythenaturaloscillationmethod.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: '“-3 -Identical:Identicalintechnicalcontents. -Addition:Addsthespecificationitem(s)andcontent(s)whicharenotincludedinInternationalStandard. -Alteration:Altersthespecificationcontent(s)whichareincludedinInternationalStandard. NOTE2SymbolincolumnofdesignateddegreeofcorrespondencebetweenJISandInternationalStandardsintheabove 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 -,-,-