ASTM F746-2004 金属外科植入材料的凹痕或裂隙腐蚀的标准试验方法

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【英文标准名称】:StandardTestMethodforPittingorCreviceCorrosionofMetallicSurgicalImplantMaterials
【原文标准名称】:金属外科植入材料的凹痕或裂隙腐蚀的标准试验方法
【标准号】:ASTMF746-2004
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;侵蚀腐蚀;医学科学;裂纹;腐蚀;外科植入物;磨损;材料;金属;外科学;医疗设备
【英文主题词】:crevicecorrosion;passivemetals;pittingcorrosion;potentiostaticpolarizationmeasurements;surgicalimplantmaterials
【摘要】:Thistestmethodisdesignedsolelyfordeterminingcomparativelaboratoryindicesofperformance.Theresultsmaybeusedforrankingalloysinorderofincreasingresistancetopittingandcrevicecorrosionunderthespecificconditionsofthismethod.Itshouldbenotedthatthemethodisintentionallydesignedtoreachconditionsthataresufficientlyseveretocausebreakdownofatleastonealloy(Type316Lstainlesssteel)currentlyconsideredacceptableforsurgicalimplantuse,andthatthosealloyswhichsufferpittingorcrevicecorrosionduringthemoresevereportionsofthetestdonotnecessarilysufferlocalizedcorrosionwhenplacedwithinthehumanbodyasasurgicalimplant.1.1Thistestmethodcoversthedeterminationofresistancetoeitherpittingorcrevicecorrosionofmetalsandalloysfromwhichsurgicalimplantswillbeproduced.Itisamodifiedversionofanestablishedtestandisusedasascreeningtesttoranksurgicalimplantalloysinorderoftheirresistancetolocalizedcorrosion.1.2Thistestmethodappliesonlytopassivemetalsandalloys.Nonpassivealloys(otherthannoblealloys)aresusceptibletogeneralcorrosionandarenotnormallysuitableforimplantuse.1.3Thistestmethodisintendedforuseasalaboratoryscreeningtestofmetalsandalloyswhichundergopittingorcrevicecorrosion,orboth.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C35
【国际标准分类号】:11_040_40
【页数】:6P.;A4
【正文语种】: