ASTM A940/A940M-2006 涡轮转子用的差温热处理真空处理钢锻件,合金钢锻件的标准规范

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【英文标准名称】:StandardSpecificationforVacuumTreatedSteelForgings,Alloy,DifferentiallyHeatTreated,forTurbineRotors
【原文标准名称】:涡轮转子用的差温热处理真空处理钢锻件,合金钢锻件的标准规范
【标准号】:ASTMA940/A940M-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:A01.06
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:differentialheattreatment;steelforgings;turbinerotor;vacuumtreatedsteel
【摘要】:1.1Thisspecificationcoversvacuumtreated,alloysteelforgings,differentiallyheattreatedforturbinerotors.1.2Differentialheattreatmentofarotorforginginvolvessubjectingtwoportionsoftheforgingconcurrentlytotwodifferentaustenitizingtemperaturesfollowedbytwodifferentcoolingratesfornormalizingandquenching,andthentempering,toachievecreepresistanceinthehighpressure(HP)portionandhightoughnessinthelowpressure(LP)portion.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.
【中国标准分类号】:J32
【国际标准分类号】:77_140_85
【页数】:4P.;A4
【正文语种】:英语