ASTM E18-2008b 金属材料洛氏硬度的标准试验方法

作者:标准资料网 时间:2024-05-08 08:32:17  浏览:9030   来源:标准资料网

【英文标准名称】:StandardTestMethodsforRockwellHardnessofMetallicMaterials
【原文标准名称】:金属材料洛氏硬度的标准试验方法
【标准号】:ASTME18-2008b
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E28.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hardness;mechanicaltest;metals;Rockwell;Calibration--metals/alloysanalysisinstrumentation;Metalelectricalconductors;Rockwellhardness;Testingmachines;Verification
【摘要】:TheRockwellhardnesstestisanempiricalindentationhardnesstestthatcanprovideusefulinformationaboutmetallicmaterials.Thisinformationmaycorrelatetotensilestrength,wearresistance,ductility,andotherphysicalcharacteristicsofmetallicmaterials,andmaybeusefulinqualitycontrolandselectionofmaterials.Rockwellhardnesstestsareconsideredsatisfactoryforacceptancetestingofcommercialshipments,andhavebeenusedextensivelyinindustryforthispurpose.Rockwellhardnesstestingataspecificlocationonapartmaynotrepresentthephysicalcharacteristicsofthewholepartorendproduct.AdherencetothisstandardtestmethodprovidestraceabilitytonationalRockwellhardnessstandardsexceptasstatedotherwise.1.1ThesetestmethodscoverthedeterminationoftheRockwellhardnessandtheRockwellsuperficialhardnessofmetallicmaterialsbytheRockwellindentationhardnessprinciple.ThisstandardprovidestherequirementsforRockwellhardnessmachinesandtheproceduresforperformingRockwellhardnesstests.1.2Thisstandardincludesadditionalrequirementsinannexes:VerificationofRockwellHardnessTestingMachines
AnnexA1
RockwellHardnessStandardizingMachines
AnnexA2
StandardizationofRockwellIndenters
AnnexA3
StandardizationofRockwellHardnessTestBlocks
AnnexA4
GuidelinesforDeterminingtheMinimumThicknessofaTestPiece
AnnexA5
HardnessValueCorrectionsWhenTestingonConvexCylindricalSurfaces
AnnexA6