【英文标准名称】:Metallicpowders-Testmethodforthedeterminationofnon-metallicinclusionsinmetalpowdersusingapowder-forgedspecimen
【原文标准名称】:金属粉末.用铸造粉末样品测定金属粉末中非金属夹杂物的试验方法
【标准号】:BSISO13947-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-03-30
【实施或试行日期】:2007-03-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:铸造;夹杂物;测量;金属粉末;金相学;金属;非金属的;非金属夹杂物;粉末;粉末冶金;试样;钢;测试
【英文主题词】:Forged;Inclusions;Measurement;Metallicpowders;Metallography;Metals;Nonmetallic;Non-metallicinclusions;Powder;Powdermetallurgy;Samples;Steels;Testing
【摘要】:ThisInternationalStandardspecifiesametallographicmethodfordeterminingthenon-metallicinclusionlevelinmetalpowdersusingapowder-forgedspecimen.Thetestmethodcoversrepresspowder-forgedtestspecimensinwhichtherehasbeenminimallateralflow(<1%).Thecoreregionofthepowder-forgedtestspecimencontainsnoporositydetectableat100×magnification.Thistestmethodcanalsobeusedtodeterminethenon-metallicinclusioncontentofpowder-forgedsteelparts.However,inpartswheretherehasbeenasignificantamountofmaterialflow,thenear-neighbourseparationdistanceneedstobechanged,ortheinclusionsizesagreedbetweenthepartiesneedtobeadjusted.Thistestmethodisnotsuitablefordeterminingthenon-metallicinclusionlevelofpartsthathavebeenforgedsuchthatthecoreregioncontainsporosity.Atthemagnificationusedforthistestmethod,residualporosityishardtodistinguishfrominclusions.Toomuchresidualporositymakesameaningfulassessmentoftheinclusionpopulationimpossible.Thistestmethodmaybeappliedtomaterialsthatcontainmanganesesulfide(admixedorprealloyed),providedthenear-neighbourseparationdistanceischangedfrom30μmto15μm.
【中国标准分类号】:H71
【国际标准分类号】:77_160
【页数】:12P.;A4
【正文语种】:英语