【英文标准名称】:StandardPracticeforCalculationofCorrosionRatesandRelatedInformationfromElectrochemicalMeasurements
【原文标准名称】:和相关的电化测量信息腐蚀率的计算的标准实施规程
【标准号】:ASTMG102-1989(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1989
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:G01.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:corrosioncurrent;corrosionrate;electrochemical;equivalentweight;polarizationresistance;Tafelslopes;Zinc;Zincalloys;Zirconium(Zr);Alloyequivalentweight;Alloys;Aluminumalloys--corrosiontesting;Austeniticsteel;Carbonsteel;Copp
【摘要】:Electrochemicalcorrosionratemeasurementsoftenprovideresultsintermsofelectricalcurrent.AlthoughtheconversionofthesecurrentvaluesintomasslossratesorpenetrationratesisbasedonFaraday''sLaw,thecalculationscanbecomplicatedforalloysandmetalswithelementshavingmultiplevalencevalues.Thispracticeisintendedtoprovideguidanceincalculatingmasslossandpenetrationratesforsuchalloys.Sometypicalvaluesofequivalentweightsforavarietyofmetalsandalloysareprovided.Electrochemicalcorrosionratemeasurementsmayprovideresultsintermsofelectricalresistance.Theconversionoftheseresultstoeithermasslossorpenetrationratesrequiresadditionalelectrochemicalinformation.Someapproachesforestimatingthisinformationaregiven.Useofthispracticewillaidinproducingmoreconsistentcorrosionratedatafromelectrochemicalresults.Thiswillmakeresultsfromdifferentstudiesmorecomparableandminimizecalculationerrorsthatmayoccurintransformingelectrochemicalresultstocorrosionratevalues.1.1Thispracticecoverstheprovidingofguidanceinconvertingtheresultsofelectrochemicalmeasurementstoratesofuniformcorrosion.Calculationmethodsforconvertingcorrosioncurrentdensityvaluestoeithermasslossratesoraveragepenetrationratesaregivenformostengineeringalloys.Inaddition,someguidelinesforconvertingpolarizationresistancevaluestocorrosionratesareprovided.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【中国标准分类号】:A29
【国际标准分类号】:77_060
【页数】:7P.;A4
【正文语种】:英语