ASTM G73-2010 使用转动仪器进行液体冲蚀试验的标准试验方法

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【英文标准名称】:StandardTestMethodforLiquidImpingementErosionUsingRotatingApparatus
【原文标准名称】:使用转动仪器进行液体冲蚀试验的标准试验方法
【标准号】:ASTMG73-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:G02.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:dropletimpact;erosion;erosionbyliquids;erosionresistance;erosiontest;liquidimpact;liquidimpingement;rainerosion;rotatingarmapparatus;Degradation;Destructivetesting;Distributedimpacttests;Electrodepositedcoatings;Erosion;Impact
【摘要】:ErosionEnvironments8212;Thistestmethodmaybeusedforevaluatingtheerosionresistanceofmaterialsforserviceenvironmentswheresolidsurfacesaresubjectedtorepeatedimpactsbyliquiddropsorjets.Occasionally,liquidimpacttestshavealsobeenusedtoevaluatematerialsexposedtoacavitatingliquidenvironment.Thetestmethodisnotintendednorapplicableforevaluatingorpredictingtheresistanceofmaterialsagainsterosionduetosolidparticleimpingement,duetox201C;impingementcorrosionx201D;inbubblyflows,duetoliquidsorslurriesx201C;washingx201D;overasurface,orduetocontinuoushigh-velocityliquidjetsaimedatasurface.Forbackgroundonvariousformsoferosionanderosiontests,seeRefs(1)through(7).Ref(6)isanexcellentcomprehensivetreatise.DiscussionofErosionResistance8212;Liquidimpingementerosionandcavitationerosionare,broadlyspeaking,similarprocessesandtherelativeresistanceofmaterialstothemissimilar.Inboth,thedamageisassociatedwithrepeated,small-scale,high-intensitypressurepulsesactingonthesolidsurface.Theprecisefailuremechanismsinthesolidhavebeenshowntodifferdependingonthematerial,andonthedetailednature,scale,andintensityofthefluid-solidinteractions(Note1).Thus,x201C;erosionresistancex201D;shouldnotberegardedasoneprecisely-definablepropertyofamaterial,butratherasacomplexofpropertieswhoserelativeimportancemaydifferdependingonthevariablesjustmentioned.(Ithasnotyetbeenpossibletosuccessfullycorrelateerosionresistancewithanyindependentlymeasurablematerialproperty.)Forthesereasons,theconsistencybetweenrelativeerosionresistanceasmeasuredindifferentfacilitiesorunderdifferentconditionsisnotverygood.Differencesbetweentwomaterialsofsay20%orlessareprobablynotsignificant:anothertestmightwellshowthemrankedinreverseorder.Forbulkmaterialssuchasmetalsandstructuralplastics,therangeoferosionresistancesismuchgreaterthanthatoftypicalstrengthproperties:OnanormalizedscaleonwhichType316stainlesssteelisgivenavalueofunity,themostresistantmaterials(someStellitesandtoolsteels)mayhavevaluesgreaterthan10,andtheleastresistant(softaluminum,someplastics)valueslessthan0.1(seeRefs(7)and(8)).Note18212;Onfailuremechanismsinparticular,seeinRef(6)underx201C;TheMechanicsofLiquidImpactx201D;byW.F.Adler,x201C;ErosionofSolidSurfacesbytheImpactofLiquidDropsx201D;byJ.H.BruntonandM.C.Rochester,andx201C;CavitationErosionx201D;byC.M.Preece.SignificanceoftheVariationofErosionRatewithTime:Therateoferosionduetoliquidimpactorcavitationisnotconstantwithtime,butexhibitsoneofseveralx201C;erosionrate-timepatternsx201D;discussedmorefullyin10.3.3.Themostcommonpatternconsistsofanx201C;incubationp......
【英文标准名称】:TextileMachineryandAccessories;ConeSectionalWarpingMachines,MaximumUsableWidth
【原文标准名称】:纺织机械和附件.圆锥滚筒分条整经机.最大有效宽度
【标准号】:DINISO2012-1978
【标准状态】:作废
【国别】:德国
【发布日期】:1978-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:Textilnorm
【标准类型】:()
【标准水平】:()
【中文主题词】:纺织机械;附件;整经机;整经轴;尺寸;宽度;规范
【英文主题词】:Accessories;Dimensions;Specifications;Textilemachines;Warpersbeam;Width
【摘要】:
【中国标准分类号】:W94
【国际标准分类号】:59_120_20
【页数】:3P;A4
【正文语种】:德语


【英文标准名称】:Aerospace;segregationtestingonetchedslicesofremeltedsteels,nickelandcobaltalloys
【原文标准名称】:航空航天.重熔钢、镍合金和钴合金酸洗薄片的分离试验
【标准号】:DIN29995-1980
【标准状态】:现行
【国别】:德国
【发布日期】:1980-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:腐蚀片;样本;试验;材料;镍合金;合金;热处理钢;钢;航空运输
【英文主题词】:etchedslices;samples;testing;airtransport;alloys;steels;nickelalloys;heat-treatablesteels;materials
【摘要】:Aerospace;segregationtestingonetchedalicesofremeltedsteels,nickelandcobaltalloysAéronautiqueetespace;essaideségrégationsurtranchesattaquéesàl'acideenaciers,alliagesdenickeletdecobaltrefondusDieseNormistanerkanntdurchd
【中国标准分类号】:V11;A29
【国际标准分类号】:5980
【页数】:7P;A4
【正文语种】:德语