SAE AMSM45202 Magnesium Alloys, Anodic Treatment of (NONCURRENT Apr 2007)

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Product Code:SAE AMSM45202
Title:Magnesium Alloys, Anodic Treatment of (NONCURRENT Apr 2007)
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification covers the requirements for equipment, materials and procedures to be used in anodic treatments for magnesium base alloys for the purpose of increasing their corrosion resistance or producing surfaces suitable for the application of a protective organic finish.
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【英文标准名称】:StandardTestMethodforDeterminationofResistancetoStableCrackExtensionunderLow-ConstraintConditions
【原文标准名称】:低限制条件下防止稳定裂缝扩张测定的标准试验方法
【标准号】:ASTME2472-2006
【标准状态】:现行
【国别】:
【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】:E08.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:条件;裂缝;测定;加长件;金属材料;耐力;稳定的;试验
【英文主题词】:crack-openingdisplacement(COD);crack-tip-openingangle,CTOA;crack-tip-openingdisplacement,CTOD;criticalCTOA(c);5resistancecurve;ductilefracture;elastic-plasticfracture;fractureinstability;low-constraintspecimens
【摘要】:1.1Thisstandardcoversthedeterminationoftheresistancetostablecrackextensioninmetallicmaterialsintermsofthecriticalcrack-tip-openingangle(CTOAc),cand/orthecrack-openingdisplacement(COD),5resistancecurve().Thismethodappliesspecificallytofatiguepre-crackedspecimensthatexhibitlowconstraint(crack-length-to-thicknessandun-crackedligament-to-thicknessratiosgreaterthanorequalto4)andthataretestedunderslowlyincreasingremoteapplieddisplacement.Therecommendedspecimensarethecompact-tension,C(T),andmiddle-crack-tension,M(T),specimens.Thefractureresistancedeterminedinaccordancewiththisstandardismeasuredasc(criticalCTOAvalue)and/or5(criticalCODresistancecurve)asafunctionofcrackextension.Bothfractureresistanceparametersarecharacterizedusingeitherasingle-specimenormultiple-specimenprocedures.Thesefracturequantitiesaredeterminedundertheopeningmode(ModeI)ofloading.Influencesofenvironmentandrapidloadingratesarenotcoveredinthisstandard,buttheusermustbeawareoftheeffectsthattheloadingrateandlaboratoryenvironmentmayhaveonthefracturebehaviorofthematerial.1.2Materialsthatareevaluatedbythisstandardarenotlimitedbystrength,thickness,ortoughness,ifthecrack-length-to-thickness(a/B)ratioandtheligament-to-thickness(b/B)ratioaregreaterthanorequalto4,whichensuresrelativelylowandsimilarglobalcrack-frontconstraintforboththeC(T)andM(T)specimens(,).1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparentheses(English)areforinformationpurposesonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:26P.;A4
【正文语种】:


【英文标准名称】:ComponentsforElectronicEquipmentDigitalTTLLowPowerSCHOTTKYIntegratedCircuitsCollectionofdetailspecificationswithinthescopeoftheFrenchStandardNFC86-212(CECC90103)
【原文标准名称】:电子设备元件TTL小功率肖特基数字集成电路法国标准NFC86-212(CECC90,103)范围内的详细规范集
【标准号】:NFC86-212/A1-1986
【标准状态】:现行
【国别】:法国
【发布日期】:1986-09-01
【实施或试行日期】:
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ComponentsforElectronicEquipmentDigitalTTLLowPowerSCHOTTKYIntegratedCircuitsCollectionofdetailspecificationswithinthescopeoftheFrenchStandardNFC86-212(CECC90103)
【中国标准分类号】:L56
【国际标准分类号】:
【页数】:228P.;A4
【正文语种】:法语