ASTM A904-2004 50镍-50铁粉末冶金(P/M)软磁零件的标准规范

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【英文标准名称】:StandardSpecificationfor50Nickel-50IronPowderMetallurgy(P/M)SoftMagneticParts
【原文标准名称】:50镍-50铁粉末冶金(P/M)软磁零件的标准规范
【标准号】:ASTMA904-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:A06.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:粉末冶金;软磁的;镍铁合金;合金
【英文主题词】:coercivefieldstrength;PIMparts;powdermetallurgy(PIM);50Ni-50Fe
【摘要】:1.1Thisspecificationcoversthemagneticpropertiesof50nickel-50ironpartsfabricatedbypowdermetallurgytechniquesandisintendedforpartsthatrequirehighmagneticpermeability,highelectricalresistivity,lowcoercivefieldstrength,andlowhysteresisloss.Itdiffersfromthewroughtalloyspecification(seeSpecificationA753)becausethesepartsareporous.Anumberofmagneticpropertiessuchaspermeabilityareproportionaltothesintereddensity.1.2ThisspecificationdealswithP/Mpartsinthesinteredorannealedcondition.Shouldthesinteredpartsbesubjectedtoanysecondaryoperationthatcausesmechanicalstrain,suchasmachiningorsizing,theyshouldberesinteredorannealed.1.3Thevaluesstatedincustomary(cgs-emuandinch-pound)unitsaretoberegardedseparatelyasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunits,whichareprovidedforinformationonlyandarenotconsideredstandard.
【中国标准分类号】:H71
【国际标准分类号】:77_160
【页数】:3P.;A4
【正文语种】: